Grand Union Plumbing & Heating Ltd

Good Service

Grand Union did our whole heating system during a full house renovation. Worcester Bosch heat pump, cylinder, underfloor heating downstairs and radiators upstairs. They designed it around our house with Bosch, and worked with us on the practical side, like where the heat pump and cylinder should go. They also tidied up our mains pipes while they were here and were straight with us that it wasn't extra work. Plenty of contractors would have charged me for that. Conor's pipework is excellent and properly thought through. He even allowed for a water softener we want to fit later. The whole team were a pleasure to have around. Mitch led the job and kept us in the loop, they worked around us and the other trades, and left the place tidy. Larry even translated Romanian so we could sort something out with another builder. Great team, fair price. Recommended to anyone thinking about a heat pump.

Our go-to heating engineers! Grand union renewed the boiler in a rental property back in 2022 and service it every year. You get a full report on the job, with photos. Highly professional and reasonably priced.

A great experience. Called 10 minutes ahead of arrival and was polite and informative throughout with honest and professional advice. Andy is highly recommended.

Very pleased with arrangements and work carried out for replacing shower including retiling the surrounding splash tile area tiling. Not least also they sorted out the low pressure water problem I had within the house. All work carried out and made clean/thorough tidy after each visit. Would not hesitate to use Grand Union again for any future problem and thoroughly recommend

Grand Union installed my new heat pump and I’ve been really happy and impressed with the quality of service from the very first visit all the way to the finish. The job was complicated and involved moving the existing hot water tank into the loft. Connor did an excellent job, he was thorough, clean, professional and with great attention to detail. All the pipework was neat inside and out, and communication throughout the job was excellent. Mitch and the rest of the team were great to work with too. All this at a very reasonable price, while supporting a local business. Highly recommended.

Contacted Grand Union about my heating and they responded as quickly as possible. Gave me the option of choosing my convenient date. On the said day, Everything went well. Andy was professional and took time to explain everything in details. I have rest of mind now knowing I can count on Grand Union. Much appreciated. Cheers and thanks

Professional work and well communicated.

Brilliant ! Very nice pleasant young man did a shower replacement installation , has done a great job , we had 6 plumbers walk through our door that couldn’t find a solution to our problem , till Mitchell walked through the door and within 2 minutes gave us two simple options whereas the others were looking at doing a whole new bathroom , thank goodness for Mitchell and Grand Union .

Great services as always use this. Company every year, always friendly and helpful and turn up on time would recommend.

Great company - Andy was excellent. When I called they understood the problem, were reassuring that everything would get sorted and found me an appointment. On the day Andy let me know before arrival - and arrived on time. Sorted out everything!

The plumber is very professional.

Just had boiler serviced by Andy of Grand Union plumbing efficiently and professionally leaving no mess when finished, I fully recommend this company to do a good job.

Professional and friendly as always. I always feel like I can trust them when they tell me what needs to be done.

Excellent service! Very professional and quick as well as affordable! Andy arrived on time and did a great job instructing outside tap, clean,neat and quick! Will use this service again and highly recommend

Excellent service, very knowledgeable and professional engineer

Mitch has been great to deal with. Would absolutely recommend Grand Union Plumbing & Heating with their air source heat pump in Milton Keynes

Grand Union have installed a new bathroom in my 1 bed house. The workmen were friendly, trustworthy, very professional and their work is of a high standard. I'm delighted with the end result which is a high quality finish. Also, follow-up for small tweaks after the install were organised and actioned efficiently. Also, their contact at reception was friendly and helpful throughout the process. I would recommend this company.

Good company. The team was professional, punctual, and very knowledgeable. They explained everything clearly, completed the work efficiently, and left everything clean and tidy.

I am very pleased that I chose Grand Union Plumbing & Heating for my bathroom conversion. They have done a wonderful job and a nicer group of people you couldn't hope to meet.

Arrived when expected. Fixed problem swiftly and explained clearly what the issue was. First class.

Excellent, Mitchell is a highly qualified professional, consistently respectful and confident in his work.

Tried a few companies for my toilet issue. Grand union were helpful and friendly on the phone to begin with, efficient in sending the relevant info. When the plumber came he was knowledgeable, professional and really supportive. Job was done quickly, cleanly and I am very pleased. Would recommend and will be using in future.

Used a few times and always excellent service - quick to respond, knowledgeable and fantastic customer service

Fast . Always on time and always just genuinely lovely people

Excellent service , Mitch did a great job highly recommend!

We are very happy with our newly refitted downstairs bathroom. Mitch had excellent communication with fast responses, and he adapted everything to suit our preferences. We appreciated his advice and thoughtful planning that made the whole project run smoothly. Conner was a hard worker, very efficient and helpful and did a perfect job. All of the tradespeople working on the bathroom were friendly and did excellent high quality finishes. They also came out very quickly to fix a separate problem we had with our boiler pipes leaking. We are looking forward to having them do more projects for us in the future.

Booked the annual boiler service with Gran Union Plumbing & Heating. All very easy from booking to service day with constant text updates on a 3 hour window for the job plus “exact-to-the-minute ETA” on the day so you’re always well informed. The technician very knowledgeable, had to drill some holes in a new boiler cupboard the kitchen fitters install and did it without issue and cleaned after. Service book and digital certificate provided at the end of the job. Great service and good value. Highly recommend

Flawless every time. Highly recommend

We had grand union over today 25/2 a fella called Marco. Absolute 1st class. Polite knowledgeable & tidy a pleasure. Highly recommend. 🌟

Fast, efficient and friendly 🪠

Neutral

Great service as always from The team!

I contacted Grand Union to replace the toilet & sink. They were very efficient with providing quotes. The plumber was friendly and efficient. I am very pleased with the overall service.

Excellent service

Marco always do our maintenance. Professional and respectful as always

Had a full boiler refit. Grand Union quoted me a better price than British Gas, and over 3 days of power flushing, fitting, and Hive setup, it was a stress free process. Connor was friendly, professional and efficient, doing all the work (on his own throughout) with zero fuss. Admin process is also great. Easy to contact Mitch or Lauren, pay invoices and get details of the work electronically. It is a very professionally run business with top notch customer service. After care service is also great and always happy to help, and their Home Cover contracts are great value. I would highly recommend Grand Union to anyone in Milton Keynes for any of their plumbing and heating needs!

Really good friendly service very helpful and informative. Was honest and genuine. On time and a very good job done.

The team at Grand Union are personable, diligent and kind. Having had work done on our house for many weeks, we built a great relationship with the team as well as having a top notch bathroom at the end of it. They've been great with snagging issues & were super flexible in the planning process too.

Superb service, thank you!

Mitchell of Grand Union arrived on time and rendered professional service to me.

Excellent customer service. Very friendly, professional and very good. Very polite and efficient Andy explain me everything.

Been using Grand Union for years now, always professional and provide a great service.

Again , excellent customer service. Appointment booked to accommodate my work pattern. Marco arrived as scheduled, fixed problem efficiently and left kitchen as he found it. Really can’t recommend this firm highly enough. Now, wouldn’t use anyone else for plumbing and heating needs. Wish they sorted gardens

Professional communication, transparent and honest. Hard to come across plumbs that have all three! Added bonus was fast call out and very reasonable quote.

A 5 star experience, we recently had a full air source heat pump and central heating system installed, which was a massive job. Mitch and Connor did an amazing job, they were clear and upfront about the whole process from day one, they were very thorough and careful with their work and the result is outstanding, the job has been finished to the highest quality and the care and attention to their work really shows.

communication with customers professional approach and on time this is everything what I need absolutely recommend this professionals know how to do it thank you

I recently had a new water softener installed by Grand Union Plumbing, and I’m so happy with the whole experience! After dealing with other plumbers who either said my softener was too big or suggested awkward setups that would waste space, I was fed up and decided to find a reliable company online. That’s how I found Grand Union and I’m so glad I did. From the very first call, everything was smooth and professional. They asked me to upload photos of the job, sent SMS updates when the engineer was on the way, and arrived right on time. Mitchell was the engineer who came, and he was just fantastic. He was friendly, polite, and super respectful of our home. From the very first site visit he even took his shoes off before coming in without me asking! The installation was done efficiently, neatly, and with so much attention to detail. He even wiped footprints off my tiles that he’d made after the installation! How often does that happen? He gave great advice on where to place the softener and single-handedly modified the under-sink plumbing, cut the shelf, and got everything installed perfectly. Within a few hours, our water was softened, and everything looked neat and tidy. I honestly can’t recommend Grand Union and Mitchell enough. It’s such a relief to meet someone who’s not just highly skilled but also genuinely friendly. It made the whole process so easy and pleasant. I’m even thinking of getting them to do my annual boiler check!

great professionals, Trustworthy professional fare priced. Will be using them again.

Having used Grand Union Plumbing for a few years now, I can honestly say that they are the best I’ve come across. A fantastic & efficient team, they know their stuff. I cannot fault Marco, his friendly demeanour and professionalism make every interaction a pleasure! You’ll struggle to find a more reliable and trustworthy company.

Anglian Water contacted us to say we had a leak (12-15 litres an hour). Despite searching everywhere we couldn't find it. Having used Grand Union in the past, Connor came to look, and via numerous tests and obvious experience, confirmed that the leak was actually under the tiled kitchen floor. He quickly worked out a way to re-route the hot and cold pipes which meant not having to dig up the kitchen floor, which was a godsend. Anglian Water have confirmed the leak is fixed, so all good. Fantastic service, Connor was very polite, courteous and even cleaned everything up. Very grateful, thankyou !

Had the boiler changed by Mitch. Job went smoothly, he kept me updated step by step. Mitch was professional, nice and friendly. Totally recommend.

best boiler installation company in Milton Keynes. thank you so much

Really happy with the service provided. Replaced defective shower, including suggesting and supplying the parts, and got the job done very quickly. Andy was extremely helpful and knowledgeable, and completed the work to a very high standard. Very efficient systems with automated reminders and notifications so you know plumber is on way, and office staff also extremely helpful. I would not hesitate to use this business again. Highly recommended.

Fantastic service, friendly and very efficient.

The go-to boiler installation folks in Milton Keynes. I called 5 local plumbers in MK and Grand Union were the only people to provide me with a reasonable quote so I went with them and I'm glad I did. Mitchell was very respectful of the property - he was the only engineer who took his shoes off before entering without me asking. I had to stop everyone else and ask them to take off their shoes as my whole flat is carpeted. He carried out the new boiler instal in a clean and efficient manner. He was also very friendly and knowledgeable. I'd whole heartedly recommend them

Great communication and scheduling service! Job got done promptly and thoroughly!

Fantastic service keeps you up-to-date all the way and the engineer was very professional and lovely to speak to would highly recommend them

I recently used Grand Union Plumbing Heating & Bathrooms and couldn’t be happier with the service. From start to finish, the team was professional, punctual, and extremely knowledgeable. They explained everything clearly, worked efficiently, and left everything spotless. The quality of workmanship is outstanding, and they went above and beyond to make sure everything was perfect. I highly recommend them for anyone looking for reliable plumbing, heating, or bathroom services. Excellent experience all around!

GREAT COMPANY MARCOS WHO DID THE REPAIR WAS EXCELLANT

Great service! Thank you

Always a positive experience, pleasant employee and very helpful

Excellent. On time. Job completed in a short time. No fuss. Very polite. Just what you want in a plumber.

First class service will use again.

Great company, communication was there throughout - very helpful, competitively priced and and all round cracking service! Will 100% use again

Quick and easy gas safety check carried out. Friendly staff member, arrived within the time slot booked. Also received a message 10 minutes before arrival. Thank you

Marco came out and had my boiler fixed in no time . He explained everything and what his plan was and had everything done in good time. Thanks guys

Great job, professional and quick! Thank you guys

Would highly recommend, Lauren in the office most helpful from start of job . On commence of work all were very friendly kept me informed on the day. The workmanship and pride in doing a good job showed.

We had returned from holidays , house was a little chilled , when I got txt from grand union for my normal winter service on , and straight away I booked it. and called the young lady so polite and very helpful , also being pensioners so need house nice and warm. She organised for marco to come and get all systems go for the heating before 3:30pm Thank you so much for a quick response 👍👍 Definately five star service we got.

Had a considerable gas leak.They were quick to respond, arrived on time as promised, polite professional service.Goodwork by Andy and Marco.

Andy texted with an estimated time of arrival. Arrived on time, very polite & chatted for a little while. Very tidy & completed job with no problems. Very happy. Andy also helped & advised with future projects. Thank you Andy.

Andy and Lauren were professional, knowledgeable, and helpful. Communication was great so I knew what to expect and when, and how much it would cost. Thank you both!

Andy was very quick and efficient and a lovely guy. Also when I called to check on times ect the lady I spoke to on the phone was very professional with handling my enquiries and very nice and personable. We will definitely use your services again. Thank you very much.

Contacted Grand Union with our problem of a leak on the downstairs toilet. Had immediate response with a timed visit for the following day. The engineer Kennon arrived on time and did an excellent job fixing the leak as he had spare parts on the van. It’s so good to receive old fashioned quality service .So impressed I've booked them for my annual boiler service in January.

Excellent plumbing and heating service! Prompt response, clear communication, and professional workmanship. They explained everything in detail and made sure the system was running smoothly before leaving. Great value for money :-)

Shout out to all the team for their great communication either via telephone or email. I would recommend Grand Union Plumbing & Heating

Thank you to Grand Union for fitting our new hot water tank and immersion heater. It was not as straight forward as expected but they sorted it all out and did an excellent job. Thank you Mitchell and Andy.

Always professional and friendly, either on the phone or in person. I have Andy fix my boiler quite often. He is a friendly guy and always knows exactly what is wrong with it. Highly recommend.

Grand Union have completed a few jobs for me over the past couple of years. Another awesome job completed by new recruit Keenan who installed a power shower for my mum - she’s one happy lady.

Andy attended to my issue just two hours after I contacted Grand Union. He was very professional. He quickly diagnosed the problem and solution. A brilliant service.

Boiler service quick and easy!! Ready for the winter. They have previously installed a new radiator in our kitchen/diner and relocated another. Couldn’t fault them!

We recently had a visit of an engineer from Grand Union Plumbing and Heating to address a boiler leak issue. The engineer arrived promptly and carried out a thorough assessment of the fault. After identifying the defective part, the repair was completed within just one day of the initial visit. Throughout the process, the engineer was friendly, positive, and highly professional. They took the time to explain everything clearly, which was greatly appreciated. Since the repair, the boiler has been functioning good. Highly recommended for their quick response, excellent service, and approachable attitude.

Fantastic bathroom renovation - highly recommend Grand Union Plumbing & Heating! A big thank you to Glen and the team for providing an excellent service throughout the whole process. Glen worked with us to plan the bathroom space to our budget & we’re super pleased with the final result of our bathroom installation. A big shout out & thanks to both Connor and Luka who did a fantastic job in transforming the space into a modern-day bathroom. They were both punctual, hard working, skilled and kept us updated on the status of the renovation work throughout the 2 weeks. Sam, also did a terrific job with the tile work. Looking forward to working with Glen & the team on future projects and would definitely recommend the company to family and friends.

Arrived on time and completed the boiler service efficiently

Fantastic company to do business with, brilliant customer service, knowledgeable and friendly and very reasonably priced. We have had several jobs completed by Grand Union Plumbing and heating including the Fantastic water filters. 100% recommend

Excellent service. Very efficient, great service and i liked their clear pricing. Definitely recommend & i will be booking my annual service with them again. Well done!

Responses were quick and Andy was friendly, explained everything well and fixed the issue we were having with our boiler so would recommend this company :)

Very nice and professional service.

Excellent service ! Started with a simple and easy booking system, very quick responses and a visit from Marco to complete the job. Thanks !!!

Really nice friendly helpful engineer, very impressed with Grand Union

Always a fantastic experience from Grand Union Plumbing & Heating. They have been out of their way to sort issues out, always respond quickly and know the right solution. 100% recommend.

Thank you so much for your kind help The young man was so polite and helpful, I would recommend, Grand Union ,plumbing g&Heating ,excellent service thank you...

Excellent service

Excellent and reliable. I highly recommend 👍

My experience with Grand Union Plumbing in Milton Keynes was profoundly disappointing. Their customer service is severely lacking, with no responses to multiple attempts to contact them. The engineers sent were inexperienced, and it was clear that there was no quality control over their work. The boiler servicing was incomplete, and no evidence of their work was provided, forcing me to hire another provider to fix the issues. Additionally, I advise potential customers to be cautious of other Google reviews, as they appear to be fabricated by the company’s friends and family members. Overall, I cannot recommend their services due to their unprofessionalism and substandard service.

I am a very happy customer After getting my boiler serviced recently by Marco his work colleague Luca came and fixed my shower tap. Fantastic friendly service all done with a smile. Thankyou Luca

Highly recommend! Fast, friendly and knowledgeable. Marco serviced our boiler; he was professional, efficient and really courteous. After, he checked and diagnosed our shower and took the time to answer our questions so we can make the right decision for us. Professional quality service. Will definitely use again. Thank you Marco and Grand Union Plumbing for the great customer service.

Highly recommend these guys! Did a great job repairing my ancient boiler and saved me getting a new one. Very polite, fast and professional.

Turned up on time. Carried out work and made sure area was left clean and tidy

Had a new boiler installed in Milton keynes. Thank you to Mitch. Really did a great job. Will for sure use grand union for our all gas and plumbing jobs in future

Fast, efficient, friendly and did good work for a good price

Amazing service, from the moment I called till the moment my bathtub was sorted. Would definitely recommend their services. Big thank you to Mitch.

Excellent service as always. Booked in a boiler service, the engineer attended promptly, was very professional and courteous and completed the service as needed. I’m so delighted to have found a plumbing company I can totally trust

We had a plumbing leak from the ceiling and found Grand Union Plumbing online. After checking out their reviews we decided to go with them. Lauren in the office was really helpful, and Marco came out to fix the problem. He was professional, explained what was wrong, and told us how he was going to fix it. The service was excellent —I can’t recommend them enough. They’re now the only plumbers we’ll ever call and use. Thanks guys!

Been maintaining boiler for past 5 years, always prompt , professional and courteous. Good value and excellent service.

Great company and very efficient work carried out, Luca did a great job with a difficult situation but fixed problem quickly and to a great standard..

Prompt, pleasant and efficient.

Service very professional and the plumber was very polite!

I booked Grand Union Plumbing & Heating to do a service of my very old boiler and radiators. They kept me informed of Marco's arrival times, which was so helpful and allowed me to work around the appointment. Marco was a pleasure to meet and he was friendly, answering all my questions with a smile. The service was quick and with a prompt turn around. I would definitely use Grand Union again and I would recommend them to my neighbours, colleagues and friends.

Professional company from start to finish. I booked a boiler service easily on line. Engineer advised of his arrival time on the day. Friendly, efficient enginner arrived. All certificates were emailed promptly afterwards too. Very happy customer 😀

We had an emergency where we had a slow leak causing a wet patch on our living room ceiling. I called in the morning and spoke to someone professional, and they arranged for an engineer to come out on the same day. Andy arrived promptly, was very professional and friendly, and explained the problem in terms I could understand. He was able to fix the issue within the hour and provided me with some tips for the future. I would recommend and will be using them again.

We're really pleased with our new bathroom. Glen and his team provided great service and quality of work. The breakdown of the works each day over the two weeks was really helpful. We'd like to give a special mention to Connor for his work ethic, standard of finish and cleanliness. Highly recommend and we hope to deal with Grand Union again in the future.

Highly recommend Grand Union Plumbing & Heating as they are really professional and they do good quality of work. Prices are really affordable. We are really happy and will definitely use them again and recommend them to all our friends and family.

A Very quick and prompt turn around with these guys, called them Monday, and they came out promptly to take a look, order the required parts and returned. A fast and speedy service! Update - Had a boiler replacement, took 4 hours and everything was left spotless. Really great work, british Gas advised a whole day with scaffolding work and none of that was required with these guys.

Marko came to service my Mum's boiler on the same day I phoned as also had a issue with the boiler. A Very professional service. Thanks

Grand Union plumbing & heating is the only plumbing company I'll ever use! Once again, they've exceeded my expectations. I had a broken thermostatic radiator valve in my daughter's bedroom and needed it fixed urgently before her return from university tomorrow. Marco arrived promptly within the scheduled time, was incredibly polite, friendly, and tidy. He clearly explained the issue and efficiently resolved it. My daughter's room is now perfectly warm, just in time for her homecoming. A truly excellent job, and a heartfelt thank you to Marco!

Terrific service, called in an emergency at 9am, and Andy turned up at 11am and 30 minutes later, all fixed. Great service with a polite and knowledgeable plumber.

4 taps replaced, very efficient, good communications, all neat and tidy

Technician was very thorough and pleasant. He even caught an unrelated issue. Brilliant man.

Great service, fast and on the time. I will use their services again in the future.

Carried out annual service check for gas central heating. Due to mix up at the office he was later arriving than scheduled but was efficient and tidy.

The engineer was very caring and respectful. The whole process was smooth and hassle-free. Highly recommend!

Very friendly and. Courteous. Let me know what was going on. Left job very clean and tidy. Any problems just call. All in all very satisfied..

Really great communication and a very efficient service. Marco was very polite, professional and most importantly sorted the issue. He cleaned up afterwards, was cheerful and helpful. I will be using Grand Union plumbing for all needs now.

Quality, prompt & fair value. We always use these guys

Punctual, polite and very professional. Great with keeping me updated and a quick turnaround. Very happy customer.

Always excellent service

Great experience with Grand Union over all. Use them for annual boiler serive. Also installed my Hive for me and looked into 1 or 2 other issues. Great and friendly team.

Simply brilliant. Very competitive price, arrived bang on time, extremely polite and courteous and above all (Thomaz) did a fantastic job and cleaned up before he left. No hesitation in 100% recommending them and will be sure to use their services again.

Great Service received! Highly recommend! Reasonable price for the works required. I had a prompt response to my query with a short wait time to the appointment. The text I got to say how far away they were so I knew when they were coming and it was accurate. Normally you don't get any warning from other companies. The guy was really nice and felt comfortable him being in the house. Definitely use them again for future works.

Absolutely great!

They've been servicing my boiler for years, and when I suddenly found that I had a leaking pipe under my floorboards, I turned to them for help. The carpet and floor had to be lifted, but after it was finished you would never know, it's as good as before. Great service and cheerful operatives every time 👍🏻😊

Needed an inspection done quickly of a hot water cylinder which had been flagged as a concern by a house survey we had done. Marco was absolutely fantastic. Carried out a full service, explained everything, and we had the report a few hours later. This was the second inspection we'd had to have done as the previous plumbers had been useless (different company). Marco also spent the time to talk us through a few other concerns we had and give us some idea of potential costs. Will definitely be hiring them to carry out the work once we've moved in!

Great service, very friendly and efficient. Would use again.

Great job. Marco was very helpful. I recommend them at any time.

I’ve used Grand Union since I moved to Milton Keynes. I’ve had two traditional boilers replaced with combi boilers over a few years and the work done by Grand Union was exceptional, great service, quick to install and friendly from start to finish. I’ve had a number of small issues which naive been resolved over the phone and receive great service at a very fair price. Would highly recommend.

Really good really quick

Had an engineer come around for an annual gas and boiler service and he was professional in going about the job and prompt without any issues. Booking the appointment was hassle free as the communication was great.

Very prompt and honest. Did not do unnessary work which was my fault in explaining the job. Would recommend them without hesitation.

All good,great communication,easy to book appointment,polite and friendly engineer.

Grand Union do a grand job! They have been looking after the very quirky gas fired central heating system ( 19 rads) in our rambling three storey house in Stony Stratford for several years. Today, Andy was able to drain the system down, replace three TRVs and four corroded / leaky rad valves, and get the system back up and running with no air locks, all in a few hours. And left the place clean and tidy.

Had Marco to come and replace some bits on the boiler. A very efficient and clean worker. Top service thank you.

I needed my boiler to be serviced and to have it gas safety certificated. Marco from Grand Union P&H MK turned up on time very smart and polite. Quickly did the service, cleaned up after leaving no mes What more can you ask 100% would recommend

Grand Union Plumbing came to my rescue to fix a dripping shower after I had tried several other plumbers who either didn’t know how to fix it or didn’t show up. I found the staff at the end of the phone polite and very helpful. The booking process was easy and efficient. Tomasz the plumber arrived within the alotted time and was very pleasant. He worked neatly and carefully and overcame a few unexpected problems very well. I recommend Grand Union Plumbing and wouldn’t hesitate to call them again if I had a problem.

Prompt reliable service to replace kitchen tap and valve. Pleasant and helpful. Thank you.

Great Service

Just had my central heating replaced, new boiler, radiators and pump replaced. The team were great, they turned up on time and kept me informed. Had an issue with the water circulating around all the radiators this was due to a build up of rust in the pipes from the previous radiators. Mitchell was like a dog with a bone to resolve the issue and it was all sorted. Thank You Mitch and Conner. Great service.

Excellence

Grand Union is always our first choice for all boiler and plumbing needs. Easy booking, reliable, great communication and fairly priced.

Quick, efficient service, provided me with 3 hour time window and another notification for 5-10mins before arrival

Great, efficient and friendly service.

Quick and efficient visit by Marco from Grand Union. He sorted out the problem with no fuss or mess.

All I can say is amazing, it’s taken a while for us to get around to flooring, so it’s a bit late. From start to finish we had amazing service. We knew what we wanted and Grand Union Plumming were the only company who made us feel like they could help. Glenn helped with the design, and when we were unsure of tiles met us at the shop to help us out. Harley fitted the bathroom and was great, showing us the work daily. If your looking for great service and a top level finish I would recommend Grand Union Plumming

Prompt response

Professional and skilled staff

Mitch was absolutely amazing best service ever.. highly skilled.. efficient and true to his word.. A kitchen tap emergency today.. I called Mitch.. went out of his way to help! Highly recommend using Mitch and his company. Thank you so much.

Excellent service thank you

Since our boiler was broken and we were without heat, Mitch arrived promptly and at very short notice. He was very thorough in addressing all of our inquiries and helped us set up our heating. Would definitely recommend them!

Marco came out today to look at our radiators that weren’t working. He found the issue and had it fixed within 10 minutes! Very polite and friendly, would recommend

Just had my new boiler and new radiators fitted by Grand Union Plumbing & Heating.Great professional job, plus clean and tidy afterwards. Highly recommend Grand Union for your Heating requirements.

Great service, freindly staff , on time , and professional while on the job.

Highly recommend! We booked our annual boiler service with Grand Union Plumbing. I had a very good experience from start to finish. Easy and professional booking and payment processes, all online. Andy was punctual, very pleasant and extremely knowledgeable in his trade. Highly satisfied with the overall experience, we would recommend them 100% and will use their services again. Thank you!

He was professional, courteous and cleaned up after himself. Cannot fault him.

Really friendly and down to earth. Cleaned up after and was polite all the way through whilst keeping us informed.

Engineer was very helpful and told us all we needed to know on how to solve our problem.

Awesome job

Fantastic service, very polite

Very pleased with new flush system in cistern, as the old one took ages to fill. Area left clean and tidy. Highly recommend Grand Union, would definitely use again.

Excellent service

Always friendly and very helpful

Good professional service that I would highly recommend.

Great service from truly excellent plumbers. Andy and Mitch have never disappointed and always bring know-how, ideas and fast solutions. Great team.

After several unsuccessful attempts with other plumbers to fix our thermostat for the underfloor heating and balance the radiators, we were relieved when Mitchell from Grand Union Plumbing and Heating came over. He installed the thermostat for the underfloor heating and expertly balanced the radiators throughout the house. The difference was immediate, and everything is now working perfectly. We especially appreciated how Mitchell explained everything clearly without any jargon. Highly recommend!

Great service. Kept me advised all the way through , a pleasure to deal with.

Thank you Grand Union Plumbing & Heating you solved issues for us then charged a very transparent fair price and we could not be happier... we will be sure to use only your selves for any future work and boiler services.

I've had my boiler serviced by Grand Union Plumbing & Heating for around four years now and they've always done a great job and I would recommend them. It's easy to book a boiler service online, they always turn up when they say, and they do a great job. On the occasion I called for some specific boiler advice, they were very helpful and provided me with the service I needed.

Good service from start to finish. Very pleasant plumber and good organisation beforehand

Grand Union worked so fast and also tidy up as the same time.l Like their work 👍

Mitch and the team are the go to people for your plumbing needs. Very efficient service, have been using them for six years now.

New boiler fitted and amazing work! Everyone was brilliant to deal with and quote and job matched. It's always great to support a local business as well in the process which can provide a personal service.

Mitch and his team are amazing. Mitch organised for a plumber called Thomasz to fit two Towel heaters. Thomasz was very friendly and very efficient in the way that he worked. Completed the job on time. I will need other work doing and will definitely call back Grand Union plumbing and heating.

My shower cubicle needed replacement, as the door had jammed. Grand Union Plumbing & Heating had done some good work for me in the past and were my go to company. I asked them to look at a replacement. They were professional, clean and friendly, all at a very reasonable cost. The work was difficult for their bathroom fitter but it wasn't for me. My bathroom looks amazing and the shower is perfect!

Helpful team

My first experience with Grand Union was excellent. I enquired via the online form on their website and received a call from Mitch early the next morning. Later that afternoon he had diagnosed and resolved the issue that was causing my boiler to leak, and provided me with some useful information on my boiler, potential points of failure and how to spot the warning signs. With his help my ageing boiler will see me through another winter. I'll be asking GU to quote for a bigger project next year. Edited September 2025: Grand Union have just finished installing my new boiler; replacing an ancient conventional boiler system with a combi boiler. Three days of professional work, carried out to a really high standard. GU has delivered again and I couldn't be more pleased. Thank you!

Friendly and professional service.

Great service. Arrived within the booking window. Kept up to date with arrival. Friendly and professional engineer. Thank you

Had a boiler service done... nice, friendly and punctual Was very helpful with advice and feedback Confident guys that know what they are doing and perform efficiently. Would recommend!

Great communication from these guys, Gave me a 3 hour time slot on my chosen day and then the plumber gave me a courtesy message when he was on his way, Which is great when you’ve got kids. They guy came and did his inspection promptly and was very professional. 10/10

From the first point of contact to the end of the job, the service I received from Grand Union Plumbing and Heating was exceptional. The engineer arrived on time, was polite, very respectful of my home and went above and beyond to make sure I wouldn’t have any future problems with the heating. The work was carried out to a very high standard. I would have no hesitation recommending them to my friends and family.

Polite, professional and tidy. Very happy with the service. Tomasz was great.

The guy was so nice and kind and respectful Thank you

Had a boiler service done, very professional team

Amazing service. Thomaz arrived on time. 8.30am. Clean and tidy job. Can't praise this company highly enough. Fitted new toilet. Thank you. Value for money. 5 star.

We had a leak from the loft into the bedrooms and our current emergency cover with Anglian offered an unacceptably long response time, leaving our home at risk of flooding. Thankfully I called Mitch, who quickly arranged for someone to come out.They identified the issue and repaired the pipe promptly. The service was exceptional-fast,professional and greatly appreciated.

Tomasz was polite, friendly, tidy and efficient when replacing our bathroom tap. Thank you for the great service

The service I received was excellent.

Andy arrived punctual and was very courteous, would recommend.

Engineer arrived promptly as advised. Marco is very polite efficient and quickly replaced our old eroded kitchen tap. Happy to recommend the company.

very polite good job kept me informed of what needed doing and tidy .did a great job fitting toilet

I was very pleased with the service given by you. The job was handled and completed very quickly.

Neat and tidy work, thank you.

Great service,thanks

Very friendly punctual and helpful service

Expansion chamber was changed in one day. Good service and value in comparison with other local companies.

Great service from start to finish. All tradesmen very professional, good quality work carried out and communication very good. Would definitely recommend!

Great company with a prompt professional service and attutude all done with a smile!

Very accurate, great service, helpful. Would recommend Mitchell as very experienced and trustworthy person.

Had Grand Union Plumbing and heating fit my new shower today. Not only was it done swiftly with no fuss but provided as well with a great fitter who cleaned up everything and made sure I was OK with the controls. Brilliant quick service at very good price. Thank you.

Excellent job!

Good work done, and very nice staff

From first contact with Mitch and then Lauren with regard to our plumbing issues it was clear that I was dealing with a very professional organisation who were interested to help solve our problems. The plumber Tomasz then did an excellent and fast job(s) fixing our two toilets. Highly recommended.

Andy from Grand Union checks the boiler today. He demonstrates his ability and skill to have thorough checking on the boiler. He is attentive to details and responsive to our enquiries so that we can take action to report the problem to our developer accordingly. He is very nice and communicate effectively with us.

From start to finish, the Grand Union team were professional, helpful, polite, tidy and respectful. The design and install was smooth throughout the whole end to end process. We were kept fully informed at each stage, with the result being a stunning new bathroom which is better than we could have hoped for.

Great service!

Friendly, very reliable great service would highly recommend

Harley did a fantastic job with our bathroom renovation. He made sure we are happy with all the details from start to finish. We are happy customers and would highly recommend this company. See their work from the attached images.

A transformation beyond words! I wont put a photo if the before because yes, it really was that bad! Having put off doing the bathroom for a number of years it was time for the bath to go & for us to get a shower put in instead. The bathroom before was in a horrific state, shiplap panels on all the walls with painted over mosaic tiles… horrendous! What Mitch & his team pulled off was beyond what we could’ve ever dreamed of. Every tradesman that came in was respectable, conscientious & incredibly hard working & worked together to ensure we had the bathroom we wanted, nothing was too much to ask. If I could give them more than 5 stars I would because they absolutely deserve it!

The service I have had from this team has been exceptional, not just a one off experience but for some years now. Each time I contact them the communication is polite, clear and informative. The engineers know their stuff and get jobs done quickly. If that were not enough their prices are reasonable too. Thank you Mitch, you and your team are providing an invaluable service.

Good service provided, have nothing to complain about. Efficient, quick, on time - well done

Very good communication and prompt. Happy with them and i do recommend

This is the 1st time using Grand Union for a heating problem, and definitely won't be the last, for all of our heating and plumbing issues. We received a message about 15 minutes prior to the engineer, Marcos arrival. Marco was extremely friendly, efficient and very knowledgeable of his trade. If all of Grand Unions engineers are as efficient as Marco, then we can highly recommend this company for all of your plumbing and heating needs. We'll definitely be using Grand Union for our next boiler service, and any other issues that might arise in the future.

Very efficient, nice and polite and honest about the work needed completing.

Great service. Tomasz was really good when job turned out to be bigger than expected. Would use again.

Called my letting agent with a slight leak from the condensation pipe from the boiler, grand union came within 30 minutes and fixed it like new thanks. ☺️

Fabulous bathroom installers! Super happy that we chose Grand Union Plumbing & Heating to install our new bathroom. Mitch, who heads up Grand Union, was very friendly and attentive as we talked through our design, offering sensible suggestions that complimented our design ideas well. He was then quick to provide a competitive quote and book us in. We had Connor fit our bathroom. Connor was fantastic - extremely hard working and meticulous; we knew everything was in safe hands. Moreover, he always took the time to clean up properly at the end of the day. Mitch coordinated the work outside the rip-out and installation phases and no suprise, he's got a great team of trusted electricians, plasterers, tilers and decorators that were also exceptional. All up, a really seamless process and we've got a new bathroom we're really happy with. If you're after a bathroom install do seriously consider Mitch, Connor and the team, we're already thinking about getting them back to do more work for us!

Top services, highly recommended!

Tomasz did a fantastic job efficiently, was polite and kept us in touch with progress. Definitely I wil used that company again

Had a txt to say Andy was in way as he collected keys from work. Reliable and great customer service

Very prompt action. Nice services. The staff tidy up and clean the place after he repaired the taps. Also details explain the issue. Advised how it works after replacement. Thank you for the services.

Friendly and helpful. Took the time out to make sure everything was in working order once the work was complete. Much appreciated

The company carried out Boiler service and gas safety checks. The service engineer came within the given time slot. The work done and the advised given was highly professional. I highly recommend this company.

The plumber is very good at what he does. Came on time and did an excellent job and very respectful . Show me very friendly. I recommend it and say you can trust. Thank you for brilliant job.

Very professional plumber that helped us to replace our boiler and water tank with a combi in record time to minimise disruption to our tenants. They did a great job and for an affordable price. Not only that, they were very helpful to answer all our insurance (endless as usual) questions! Would recommend 100% !! Thanks so much for all your help

Excellent customer service Great workmanship, cleaned and tidied up after jobs and removed debris. We easily contacted and kept me informed as to what was happening. Good job reccomend

Called last Monday as my boiler stopped working and didn’t have neither hot water nor heating. They were excellent giving different quotes and have done an amazing job. Everything was fixed in less than 2 days. Would definitely recommend them!

Scott visited us for solving an issue with our radiators. He was quick to identify the issue and gave us the estimate for the work to be done.

These guys really know what they’re doing, I had a problem with my heating control in that the smart device failed and I needed to get back to my original programmer which the smart device prevented me from doing. It took a while but Marco resolved the issue and tidied up the mess of wiring that the smart device installers had left.

Used this company a lot, always good, always professional. Came to my rescue when my shower bust, fixed same day, reasonable price, Thanks Mitch and all the staff

Tomasz did a great job on your en-suite, we will be having Grand Union back for future jobs including a new bathroom!

Very friendly, supportive and reliable. I received a text message with a time slot and an ETA ahead of the driver arriving. Left the place as they found it. Have used for years and will use again. Highly recommended.

Really good work and prompt service by Scott. Already booked in another repair.

Approached Grand union regarding servicing the boiler and megaflow system at my home. Very quick to get an appointment and engineer turned up promptly as per the appointment time. Will use their services again

Excellent service and so quick to respond. Marco does it again !!

Quick and profesional service.thank you

Great service; thank you chaps.

Perfect service and details!

Mitch and all the guys are very professional and helpful. Unfortunately, I had a cowboy builder wreck my bathroom before Christmas leaving me with little facilities for a family of 7. GUPH worked really hard to get me a working bath and shower before the Christmas holidays. They are reasonably priced and a great team of people. I highly recommend and will only have Mitch and his team do any work for me in the future.

Excellent … quick and friendly service.

Friendly, reliable and efficient service.

Professionals who know their work and deliver a high quality services!

Reliable , efficient and easy to book.

Nice and professional service.

Much thanks to Mitch for coming out at short notice. Very helpful from start to finish Highly recommend

Very professional right from the beginning. Tomasz was polite and thorough with the job. Left it clean and tidy. Charges are bit more but they are honest and they give work guarantee. Plumbing and Heating company with a difference.

Thank you Grand Union/Scot for fixing my heating/radiator problem quickly and efficiently. Scot diagnosed the problem, got the part needed & then fixed the radiator problem & left all working okay. Scot was also courteous, informative & respectful of my property. Would gladly & happily recommend Grand Union.

Top rated service, 2 radiators installed and no issues. Would highly recommend. Third time using Mitch and will use again in future

Great service. Mitchell was very helpful and solved our boiler issue. As we had no hot water or heating, Lauren was fantastic at sourcing a part at short notice that Mitchell kindly collected for the repair. Recommended service! Thank you.

Recently had a replacement boiler as our previous one was on it's last legs. Mitch provided us with a very reasonable quote in comparison with British Gas and helped guide us through our options. Always found other companies very pushy and seemingly trying to get as much money out of you as possible but that was not the case here, it was all clear and could tell the team just wanted us to get the best possible outcome which in our case saved a significant amount of money. Very professional service and friendly team all round. Work was completed to a very high standard and extremely happy with the outcome. They even checked in a few days after the work was completed to make sure everything was still ok. Would certainly recommend this company. Thank you for your hard work and excellent service.

Grand Union helped us out so much with the vast amount of work that needed doing to both our en-suite and main bathroom. They accommodated our budget, they were patient, and the work was all done on time and to the highest of standards. They will now be out go to plumbers for any household needs. Would 100% recommend!

Great service and highly recommended!

Excellent service

First Class Service as always. Very good value for money and would definitely recommend 👌

2nd annual service now and very happy with GU. Comms are really good and plumbers are polite and professional

Their work is good, good customer service, good communication and professional.

Excellent service. Tomasz is very diligent and helpful and knew how to fix all our plumbing issues. You can arrange appointments and get updates by text and email, they are also very good by phone. Their quotes and invoices are all set out clearly with no hidden costs. Will definitely use again in future.

If you are looking for a plumber in Milton Keynes, Grand Union Plumbing & Heating Ltd are by far the best company I have used. They are super responsive and provided an engineer same day to resolve the issues I had. The price was extremely fair and I will not hesitate to use them again.

I had a great customer experience this morning! He was on time, very professional and helpful. Thank you !

I had a leak in my water tank in my loft and was very please with the work carried out by Grnand Union Plumbing & Heating I definitely recommend this company N Yeo

Happy to recommend Grand Union Plumbing & Heating services. Andy did really good job. He is so polite and a good professional. He turned up on time, competed on time, cleared away all mess. Good service all round.

Very professional company, reasonably priced and I had confidence in them.

Responded quickly to my online request. Good communication and great job done. Would recommend

We used this company to change our cloakroom sink taps and to modify a filtered water drinking tap. Delighted to have found a reliable general plumber.

Brilliant service and very professional company

Very nice staff, quick and efficient.

Multiple jobs done quickly and efficiently by a very pleasant Tomasz

I’ve used Grand Union 3 times and every time the service is excellent and the price very reasonable. Engineers are very good at letting you know what they are doing and there are no hidden charges. They even managed to do a job at short notice. They work tidily and even followed up with a message to check my heating was still ok the following day. Highly recommend *Edit* 7/3/23 they’ve only gone and rescued me again!! Mitch even accommodated my only being able to leave work for a very short while and was able to do the work straight away. We were dreading spending the coldest week this year in a freezing house and Grand Union came to the rescue again. Excellent service! *Edit* 6/4/23 and now a new kitchen mixer tap! Tomasz was on time, friendly, explained what he was doing and finished the job to a high standard. I don’t even know why I bothered getting quotes from other plumbers!!

Very pleased with service received from Grand Union Plumbing and Heating. Prompt response.

Prompt friendly service with very knowledgeable engineers.

Amazing experience. Very friendly and professional.

Great experience nice bloke, on time great price what more to say would recommend.

A very professional and cooperative attitude. Would use their service again.

Great work done by Mitch and his team, required an installation which was done quick and seamlessly. I would definitely recommend!

We’ve used these guys several times to get advice when our heating wasn’t working properly and to get our boiler serviced. They are super thorough, friendly and reliable. I think they are good value compared to other companies and as someone who knows nothing about plumbing they explain things in a way I can understand and never make me feel stupid. Thanks so much guys!

Generally very good company with very fast response time. Would use again.

We always use the Grand Union team for all our plumbing and heating. Exceptional service from the team. Many thanks as always.

Andy was very helpful and professional. Answered any questions I had and helped me with my questions about carbon monoxide alarm. Would of been a 5 star but communication at the end has made it 3 stars. The reason I'm rating 3 stars is because I have tried contacting regarding payment and certificate of service I give my details and get told they will give me a call but 15 days on still no call and no email.

I've used Grand Union a few times now, always great service, very professional. Had a little issue with last repair but they came right away to sort it and haven't had any issues since. Can recommend them highly.

I have used Grand Union to fix the issue we had with our kitchen tap. Carl visited on-time. He is professional, knowledgeable and really helpful. Their online booking and notification system is great. I will definitely recommend Grand Union.

WARNING AVOID. Charged me £75 for a boiler repair that didn't work and left me without heat or hot water for seven days over Xmas, which totally ruined my Xmas. Gee thanks guys. Kept ringing them but they never answered until this morning. Then they were extremely rude and hung up on me. Got another company to do the repair this morning, they were astonished that Grand Union misdiagnosed the problem and then had the cheek to quote me £389 for a new PCB which wasn't needed. Engineer this morning took 5 minutes to diagnose problem, 10 minutes to do the repair. There was nothing wrong with the PCB, problem was with NTC heat sensor. Plumber this morning called them either incompetent or scam artists, take your pick.

Kombi bakim ve kacak gaz tespiti

Thanks Andy for the work you did and the information to how to prevent the problem re occuring again. Once again Mitch's team came to the rescue thanks again all.

Had a new unvented hot water cylinder installed by Grand Union. 1st class service from start to finish. Great communication and very professional. Highly recommended.

I had a boiler problem and needed an emergency call out, with temperatures below 2 degrees. Grand Union Plumbers we’re responsive, efficient and did the job to my satisfaction. Good job.

I had my central system jet flushed through, worth every penny, excellent service and they even managed to get a radiator that has not worked for 9 years to work perfectly, can’t recommend these guys enough , Central heating system working better than ever .

Grand Union Plumbing and Heating were contacted by my landlord when I had no hot water. A pleasant, polite young man was sent around the same day. He had already correctly diagnosed the issue before attending based on the information I had provided my Landlord so had the correct part to hand and was able to fix the problem sharpish. Very pleased with the service provided.

Excellent service, polite friendly plumbers, always on time

Turned up very promptly and quickly resolved the problem. A very helpful engineer was thorough and gave good advice. Would definitely use them again

They fixed my urgency on the same day it happened. Special thanks to Ciaran who did the magic! He made it in less than one hour time, leaving the heat system ready to be used and teaching us how to deal with it. Thanks a lot!

Excellent service received from Grand Union. They found my boiler was damaged (showed me all the faults) and did everything they could have to find a replacement. No hard sell, just honest feedback. Would highly recommend this company to anyone that needs their boiler serviced/replaced. The job looks very neat and the 2 engineers we had were very polite and knowledgable. Thank you Grand Union.

Thorough boiler service. I was advised what was happening by the engineer step by step. I continue to highly recommend this company if you want a transparent honest and reliable service.

Mitchell was honest and very professional. He replaced my shower unit and sorted out my toilet unit. He answered all my questions and explained what he had done to solve the issues. I'm even going to have a water softener unit installed by him in the near future. I would recommend Mitchell to anyone. Thanks you.

Very professional 👏

Absolutely over the moon with the service from Grand Union Plumbing & Heating Ltd. Had a blocked sink in the bathroom and they came and fixed it on the same day! Very efficient, reliable no hidden costs! Highly recommended!

Courteous, professional and efficient

Hi, the specialist was very efficient and experienced. He found out the issue in a second and fixed the leakage from the tap on bathtub in few minutes. Thank you

Sorted out a leak in my apartment quickly and professionally. Very helpful and thorough.

Excellent service, on time, good advice. Ted Kemp.

Mitch was amazing and sorted my boiler out so quickly for me!! Highly recommend 😊

Exceptional service received by Grand Union Plumbing & heating Ltd. Thank you so much for a stress free experience, for our bathroom renovation. Ciaran was friendly, professional, knowledgeable, skilled as were all of Mitch's team that we met. We 100% recommend these guys. If you have any plumbing needs, look no further!

Gas Engineer called Andy, he was very professional and friendly. He did gas check and boiler service. A+ service.

Quick efficient service as always. Used Grand Union multiple times, always good.

Great service from the whole team, thanks to Carl for fixing the issue on site. Will use the services of Grand Union Plumbing MK again.

Needed an emergency plumber - they came on time, fixed the problem quickly, and the charge was reasonable. What more could I ask for?

From start to finish, recieved great service. Mitch was helpful all the way through. Would definitely reccomend.

Very professional and helpful with the problems I was facing with my bathroom pipe leak . Would definitely recommend them to friends , family and anyone in need of their services !

Sorted out my clogged dishwasher in no time

Very efficient and friendly service. Highly recommend this company and will use again.

Great service, great communication and friendly. Completed works quickly and efficiently

Great stuff from Grand Union Plumbing & Heating. All the best aspects of a large company (email confirmation, SMS on the day, SMS when engineer inbound, mobile payment friendly invoices) but also all the best aspects of a small business (friendly, personal, advice, discussion on any questions, flexibility). Work was top notch. You can't go wrong with these guys.

Really helpful sound advice!

Really pleased. From start to finish we were really impressed with Mitch and the team. 8 radiators and a new combi fitted. Great team and professional work at a competitive price. Would highly recommend.

Great work on three seperate occasions. They were great and I would thoroughly recommend.

Excellent company. I really messed them around with the time of the appointment and they were super professional and accommodating. The technician came exactly when he said he would and fixed the leak in no time

Had a new boiler installed recently by Grand Union Plumbing & Heating. The service was brilliant from start to finish. Mitch and his team were very professional, punctual and got the job done quickly at a reasonable cost. Would definitely use again and highly recommend. 5 stars. 👍🏼

Grand Union we’re professional throughout, from the initial quote and options to the actual replacement itself. The engineer arrived on time and completed the job with little disruption, especially as it was a complex replacement. I’d happily recommend Grand Union to family and friends

We've had our entire family bathroom renovated by Grand Union and we're really pleased with it. Mitch was great in dealing with some of the issues we've had and we recommend using them for your plumbing needs as well as bathroom make-overs.

Absolutely wonderful, from the day we arranged an appointment to the day our bathroom was finished. Mitch understood exactly what we wanted, listened, and made it happen. Danny our fitter went above and beyond and made sure that everything was perfect and went smoothly and the bathroom was finished perfect. the attention to detail was unbelievable, he was clean, tidy to the point we hardly knew he was there. I would definitely recommend them to friends and family, hopefully they get the same team we did.

We were very happy with all the work done and greatly appreciated the expertise and service provided. We would definitely use again!

Highly recommend, very professional from start to finish

I booked Grand Union as I had an issue with my Aqualisa shower. From the minute I made the call to book an appointment with the friendly admin lady, they kept me in the loop. I knew when they would arrive and knew how much I would be paying; no hidden extras! Highly recommend them 👍

Great service from this company, on time and clean tidy and friendly service , I would highly recommend this company 😀👍👍👍

Very pleased with their services! Will definitely use them again in the future,very professional!

Grand union plumbing and heating have always kept our property management team upto date on when appointments are booked for. As well as sending us job reports on the works needed or recommend beside this we are also provide a quotation. There always on time with completing any quotes or works we ask for. Would highly recommend them to anyone looking for a company to use. Thankyou grand union plumbing and heating team for all your hard work.

Another year flies past, and here we are again with another annual service and check-up on my central heating boiler and pressurised hot water tank. Used Mitch again from Grand Union, great faultless service, on time, reasonable prices - what else do you need to know to use these guys ? See you next year Mitch.

I am pleased with GrandUnion service.There service was very good and price was reasonable as well.In future I will definitely use their services regarding to plumbing and heating.

Grand Union were great when our combi boiler broke. They came out the next morning to diagnose the issue, and were back the following day with the part needed to make the repair. It's a nightmare when your hot water goes, and it's great to be able to rely on a team who will sort it quickly with minimal fussing around, and it's also brilliant they have a bit of a back office - we received texts to say who was on their way and when, it's a lot better than trying to pin down a solo plumber. Definitely recommend.

Fantastic service from Mitch and his team prior to and during my boiler replacement. Their quote was very competitive. Mitch talked me through the various options giving me all the information and support to make informed decisions. The install was completed in two days by Andy and Kieran who were very professional and mindful that I was working from home and took all COVID precautions. Left everything clean and tidy and talked me through the boiler and Nest operation. Mitch also went above and beyond, firstly by assisting me in evaluating a quote for my mum’s central heating replacement (she lives too far for him to do the job) and secondly in responding promptly to a leak. I would highly recommend.

I used the company's services several times and the work are very satisfactory. The service is good value and fixed the problems. Their staffs are also friendly and responsive. Highly recommended!

Kieran came to sort an issue with our toilet at our work office, the job was carried out quick and efficiently, thank you... will definitely recommend your company

Good quality work , neat and punctual . Thanks for arranging this to be fixed on a short notice

Great from start from quote to Job completed 100% recommend to all family and friends that require work in future

Brilliant service from Mitch and his team called them with a leak in my central heating pipe work and they turned up within the hour. Leak was fixed with the hour and everything back up and running again. Wouldn’t hesitate to recommend these guys to anyone and will definitely be using them in the future

Andy was great in terms of fitting my new radiators and worked late to ensure the job got done, couldn’t ask for more. Very professional, clean/tidy and knowledgeable. Would recommend and use again.

I was looking for a local plumbing service to maintain my warranty on my boiler. I found Grand Union through a trade site. I am very happy with them both in the cost for the work as well as the professional manner and promptness. Very happy...

We used Grand Union Plumbing as British Gas who we have a service contract with could not send an engineer. We were very pleased with the service provided. Mitch and Andy are really professional and so polite. They were incredibly thorough and resolved an ongoing problem we had with a leaking boiler. Their communication throughout was fabulous with a text message confirming the appointment and follow up message to advise when they were en route. We would 100% recommend Grand Union Plumbing.

Great service! Would recommend them. Very easy and user friendly booking service online, and no hassles on the day. This is the second time we’ve booked our annual boiler service as the price was competitive and reasonable.

Quick professional service! Was able to check and confirm all areas of water leakage in my property. Will recommend!

Very professional service from Mitch, my boiler failed and was able to fix it straight away 👍 Cheers fella

Absolutely love these guys. All the engineers are wonderfully polite, friendly people, knowledgeable and helpful. They're respectful of your home (both Andy and Cory took their shoes off when they came in instead of tracking wet footprints through the house). I've used them for years, and will keep using them for future works because they're so good. I know nothing about plumbing, but Mitch has taken the time to explain how the heating system works for me while he's been doing a service, Cory has advised on some future works that will need doing (some parts that technically he didn't even need to look at). Its obvious that these guys care about the customer, you're not just number on a spreadsheet. I 100% would recommend them, and I'm looking forward to getting them to do more work for me in the future.

Amazing work we use grand union plumbing for all our sites for any plumbing related I can’t fault the service very professional and always so resourceful

Turned up on time - had new radiator installed (including channelling out wall) as well as a Monarch water softener. Fair pricing, exceptionally neat work. Everything working perfectly. Could not be happier.

Excellent service, reasonably priced and professionally carried out.

Grand Union went ‘beyond the call of duty’ to repair our temperamental 20-year old boiler. A very professional and no-BS service. Highly recommended!

Used grand Union plumbing to service my boiler and couldn't of asked for a better service. They were on time and actioned the job in a clean and professional manner. Very nice to see they were operating in a covid secure manner without being promoted too 100% will be used again in the future

Had such a great experience! You can easily book and pay for everything online or over the phone. Such a friendly experienced team. Extremely satisfied with Grand Union I will be using them in the future.

Highly recommend Grand Union Plumbing & Heating. We called Mitch after getting nowhere with the first 2 heating engineers we contacted. In contrast to them, Mitch quickly diagnosed the fault, ordered the part and replaced. Totally professional and good value for money.

Excellent service from Mitch! Responsive, courteous and informative. Work swiftly done too, with clear explanations throughout. Thanks again, Mitch.

Great professional service good bunch of lads friendly thorough and were great around my children they done a amazing job on my boiler and were there to help teach me how to use it well after the business day when they didn’t have to be massive thank you to Mitch Cory and Andy 10/10

Excellent service and good servicing. Highly recomended.

Booked a cylinder service BUT then suffered a boiler issue! Mitch was superb & at short notice re-scheduled. Very prompt service, boiler fixed & cylinder serviced in no time & all at a VERY reasonable price. Will be using Mitch for ALL future servicing / issues & have already booked for next year. A reliable & professional local company

"This is a rarity in todays world- a company that stands by its work, charges fairly and gets the job done without fuss. Thank you GUP&H, will use you again.”

Professional service at an exceptional standard. They arranged all the work to be done through the property management company directly and turned up when they said and completed the work within budget.

Fast, efficient and friendly service. Iam happy to recommend them 👍😄.

Thank you so much Grand Union for repairing my cisten pump and bath tub . Your promptness and cleanliness after the work is admirable. I highly recommend you for your services.

Booked a Boiler and Water cylinder service with Grand Union. Mitch arrived on time and checked both units thoroughly. I was emailed the service record shortly afterwards. Overall great experience and would use Grand Union again.

Great service was very fast and dealt with a very differcult situation.

Quite simply an excellent service. I was surprised at the price - about half of what I expected. Very good aftercare too. Clearly, this company are not all about money. No issues with the work done.

Superb and professional service.!!!

Great service from Mitch. Very friendly and professional, answered all my questions and I learned something! Fixed some issues we had been having whilst servicing the boiler and tank. Recommended.

Great service, promt and very reliable. Mitch hss fix the boiler with a fan issue. He explaining the issue, providing options of parts, availability and cost. Job quickly done, no hassle, for sure will use him again. :)

Outstanding service, needed a repair made to the home boiler , called Grand union plumbing from a recommendation from a friend. The plumber Mitch was very prompt in his response and service. The boiler was back up and running in no time.

What a great company,I had a leak this morning they where around straight away they went above and beyond to find the problem.what great service can highly recommend them .very professional, you won’t be disappointed 👍👍

Thanks Mitch and the team for our brilliant bathroom makeover. Everything we wanted.

Grand Union recently installed a new boiler within my home and everything about the job was excellently handled. Whether it was on the phone or in person, the member of the team I spoke too was incredibly professional and answered any queries I had expertly. The price was more than reasonable and the job itself couldn’t have turned out any better. A big thanks to Mitch and the team for their help throughout!

Very good service from Mitch & team. They fitted a new shower valve & set, as well as bath & Basin taps. Mitch communicated well throughout and the guys that did the install were Clean, Courteous, Efficient, and Friendly. Would highly recommend these guys.

A Big Thanks to Mitch & his team(Nick) for sorting out my central heating problem. Mitch & Nick have been polite, friendly, professional & punctual in their approach and absolutely brilliant at their work. Great Service!! I will definitely like to recommend "Grand Union Plumbing & Heating Ltd" to friends and families. Thanks!!

Top level professional & customer focused approach. Reacted to my short notice request to replace my boiler and fitted a new one in less than 24 hours!!! Highly recommended & exactly the right quality, speed & price I was looking for. Thanks a lot

Called several plumbers, one never returned the call, another couldnt careless by stating ‘get your own tap, I maybe able to come tmw’ and also giving a rubbish price. called Mitch- arrived within an hour and a half, did a fantastic job on my kitchen tap issue, honest and polite plus he gave me options, I would recommend him/Grand union to others, a very good service indeed, thanks!

Mitch changed our boiler and moved it from downstairs to upstairs, very efficient, clean worker, quality workmanship, great communication and exceptional rates it is truly a five star service, would recommend over and over again. why can't all trades people have this ethic.