Gas Tech Heating Ltd
- Availability
- Emergency call-outs
5.0(140)Bovingdon • RECC




About
Gas Tech Heating Ltd is a heating and solar firm based in Bovingdon, covering Hemel Hempstead and Hertfordshire. They install and repair boilers, fit radiators, thermostats and heating controls, and carry out power flushes, boiler services, underfloor heating and heat pump installation. They handle commercial and landlord work, offer emergency callouts and free quotes, and are public liability insured.
Services
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Radiator installation
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Power flush
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Thermostat and heating controls
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Heat pump installation
Reviews
5.0
Gas Tech Heating Ltd reviewers often describe the team as friendly, professional and tidy, with many saying they would recommend the company. Several reviews mention Tom by name and report that he explained problems clearly, diagnosed faults and left the work clean. Reviewers report boiler servicing, boiler and heat pump installations, radiator work, leak repairs, bathroom fitting and emergency call-outs. One reviewer says a bathroom quote was more than double another local quote and that Tom was dismissive and rude when asked about it.
Boiler serviced professionally. The pressure on my boiler kept dropping and GasTech Heating came and fixed the issue. Tome was very professional and respectful
They were recommended to me and I am so glad I went with them. Efficient, polite, tidy working, excellent communication & competitively priced. Highly recommend. They will be my go to in future for any plumbing issues.
Edit: 25/8/2026 Purely because I can't seem to add a second Google Review, I'm editing my first one. We had a heat pump installed in our house at the end of July, and the Gas Tech team was brilliant. Tom came to do a survey to start with, to make sure that the system he installed would be the right fit for our house, and for the week a bit for the installation, he and the team worked tirelessly to get everything done. The system works brilliantly for the hot water (haven't needed the heating yet!), and they've been very prompt with any questions that we've had. Previous review: Once again, the team at Gas Tech Heating team has come through! Tom came this morning with a new sensor for the boiler, installed it, and make sure everything was all in good working order. It is so nice to know that they are kind and reliable should anything go wrong with the heating and plumbing in my house.
Having dealt with 3 different plumbers/heating engineers and 2 new combi boilers in 3 years and still had no water pressure, I was at the end of my tether. Other companies just wanted money upfront for everything with no results. I asked round my neighbours for companies they’d personally dealt with and Gas Tech Heating was recommended by several people. Tom came round and quickly identified the problem (without any demands for payment in advance) and arranged to carry out the remedial work. This was done professionally by Toms father who arrived promptly and kept me informed what he was planning to do. I wish I’d found this company sooner. Fiona Macdonald.
Trusted and used many times before.
Tom did a great job, was thorough and diligent and cleaned up afterwards. They operate an old school style approach which is absolutely perfect in these times when you are searching for trustworthy tradesmen. We would be happy to recommend Tom and his team.
Great company, first class service with lovely staff and reasonable prices - highly recommend
Very happy with the service. They were able to locate the leak and remedy the problem. Very professional in their approach. I would definitely recommend and use them again.
Totally professional service from initial consultation to installation of new boiler and cleansing of complex CH system. Would definately recommend this company.
Great work. Very responsive. Lovely guy too.
I woke up to an emergency Boiler leaking and Electricity off. Called Tom at Gas Tech Heating at 7.30 am. Both Father and Son arrived within an hour , The problem was fixed and Electric back on . Thank you guys for prompt arrival, and turning a stressful morning into a happy one. Very efficient and great workmanship. Thanks Tom and Tom.
Prompt efficient service. Would recommend.
Always friendly service with clean work and no issues. Never had a problem with these guys. Awesome family business! Thank you
We had some taps replaced by GTH, we were really impressed by everything, from the sourcing and fitting of the taps, to the efficiency of everything! Would definitely recommend.
I had extremely difficult plumbing leaks, but Gas Tech made an excellent job of completing the repairs. Really impressed with the skill level.
Excellent service all round. Punctual, efficient, and friendly - happy to recommend!
I’m so pleased with the excellent service I received from Gas Tech Heating. They resolved my complex heating issues efficiently. Tom was fantastic – friendly, methodical, and clearly very knowledgeable. He took the time to properly diagnose the problem and made sure everything was working perfectly before he left. My house is now warm and comfortable again! I wouldn’t hesitate to recommend them to anyone needing heating repairs. Thank you.
Excellent job from Tom on a new boiler installation and radiator power flush in December. Very professional and left the place clean & tidy after work was done. Also came back multiple times until the radiators were all perfectly balanced, dedicated to doing a great job - thank you!
Very pleased with service
We’ve used gas tech heating a number of times now and each time they have provided excellent service. Tom was professional, tidy, and took the time to explain what had caused the problem with the leak in our bathroom, and resolved it in the same day. We wouldn’t hesitate to recommend gas tech heating to anyone looking for reliable and professional service.
We regularly use Gas Tech, have for years. Friendly and very knowledgeable team. I would and have recommended them to fiends and neighbours.
Just had a new boiler fitted by Tom who was very helpful and knowledgeable. The job was done professionally and efficiently and we’re very pleased and satisfied with the work and communications. GasTech have done several jobs for us now and we have been very pleased with all the work carried out. Can’t recommend this company more highly Thank you
Just had our annual service, booking was very easy with excellent communication, Engineer arrived on time, the work was carried out very efficiently and we had helpful information regarding the condition of our boiler, Absolutely faultless service from start to finish I would highly recommend Gas Tech.
Gas Tech replaced my old combi boiler with an air sourced heat pump and the associated radiator updates. From originally contacting them, to site survey through to installation they have been absolutely professional. They listened to my requirements and longer term plans for my house and accommodated all my requirements and made sensible suggestions. I highly recommend
Brilliant service, responsive, fast, clean and clearly care about the end result. Had a system pump installed as well as some other plumbing work, very pleased with everything.
Great company ! Super reliable. Evie was very helpful with getting us booked in despite my awful messaging skills and Tom was great laid out everything as he was doing it so we knew exactly what was going on. Would recommend !
Amazing service by Tom and Team!
I have used Gas Tech a few times now. Evie was very prompt at getting us booked in. Tom was great, quick and efficient at getting our shower repaired had the job done in no time. Highly recommend 5 stars
Prompt and excellent service - as usual!
Very prompt arriving and fixing the problem with my boiler
Responded quickly and sent an engineer to look at my boiler the next day. Helpful and friendly.
Polite, helpful and gave useful advice. Problem fixed quickly and efficiently
Punctual for the appointment. Good communication and explained the details of the job to me in easy to understand terminology. Really clean and tidy work. Thank you Gas Tech. Would definatly recommend 😊
03/01/2026 After several days of no heating I called Evie at GTH nice polite lady with technical knowledge,she arrange for an engineer Tom to attend my house within a few days. Tom a very nice guy, resolved the issue quickly. Very pleased with with their response and professional service 11 out of 10. I will definitely use them again. John Egan HHH.
Excellent service from booking with Evie to installation with Tom. Seamless and couldn’t recommend enough!!
Always very good service from the team at Gastech. Fast and efficient which is what you need and a very high standard! Cheers
Excellent service, no job to small, goes the extra mile.
We recently had a new bathroom suite fitted by Gas Tech Heating, and we couldn’t be happier with the results. From start to finish, Tom was professional, punctual, and courteous. The quality of the workmanship is excellent—everything was installed perfectly, and the space was left clean and tidy. The team communicated clearly throughout the process, making sure we were informed and comfortable with each step. We’re very pleased with both the finished bathroom and the high standard of service provided. Highly recommended!
A big thank you to Evie & to Tom for servicing our boiler. We have previously used Gas Tech who are very organised and friendly. Tom is very thorough and we highly recommend the company.
Excellent Service.
Super reliable and very friendly. Wouldn't use anyone else
Tom did a great job as usual.
Professional, reliable, fairly priced. Excellent customer service.
We had an issue with a noisy boiler and are radiators weren't getting up to temperature. Tom and his team came round promptly and sorted all the issues. Great service would happily recommend.
Turned up on time, good communication and good service! David H
For many years I had always used Vaillant to service my boiler and they did a good job.. This was after having service plans that were not particularly good. Then when our boiler had a fault covered by my home insurance the engineer they used completely messed up big time. That is when Gas Tech came in and rectified the problem. They did a great job under difficult circumstances. Just had second annual service and some maintenance items. I am pleased I can use a local company that carry out a thorough service very professionally.
I have used gas tech Ltd services for many projects over the years. Their team members are always polite, friendly and punctual, we particularly use gas tech Ltd as they offer extensive knowledge through heating design and efficiency, not only with gas boilers but heat pumps too. It’s always a pleasure dealing with Evie in the office, her professional approach makes booking engineers visits hassle free. Would highly recommend for any plumbing or heating problems.
Gas Tech were fantastic. Having been let down by others, I was relieved to find a team that’s reliable, knowledgeable, and takes pride in their work. Highly recommend their services. Outstanding!
Great service from Gas Tech fitted radiator was quick clean and efficient very friendly company will be recommending them to family and friends.
Gas Tech Heating installed our new boiler recently and we couldn’t be happier. Communication was brilliant from start to finish, and the job itself was done to a really high standard. Everything left spotless, system works perfectly, you can tell they take real pride in their work.
Tom came out to help with our heating and was brilliant from start to finish. Really friendly, explained everything in details and left everything tidy. Evie in the office was lovely to deal with too, a proper family business that cares. I recommend this company 100% for any heating jobs.
Tom has been servicing my boiler for over 5 years now and has always solved issues or given me sound advice In a timely manner. I couldn’t recommend him or his firm more highly.
Had a great experience with Gas Tech. Extremely professional from start to finish — turned up on time, worked efficiently, and left everything clean and tidy. Really friendly and easy to deal with, and the quality of work was excellent. The pricing was very fair and good value for money. I’d definitely recommend to anyone looking for reliable heating engineer, and I’ll be using Tom again in the future without hesitation.
Gas Tech is a great company for speed quality of work and price would highly recommend
Very Disappointed Tom came to give me a quote for installing a new bathroom, and his price was more than double that of another reputable local company. When I asked why the quote was so high, he became dismissive and, frankly, quite rude. Not the kind of attitude you'd expect when you're potentially spending thousands. Needless to say, I won’t be contacting Gas Tech again.
Tom came to do our boiler service and was fantastic. He really knows his stuff! He was professional and a lovely person. He also gave us some great tips on how to save money on our bills with equipment that would be of no profit to himself. Great service.
Had a bolier service & some other plumbing bits I needed advice on. Tom was brilliant, he understood the issues & is going to help sort them, first class service & communication, I have already recommended the company to my family
We had a problem with our heating & hotwater not working, so we called Gas Tech Heating, who offered a next day visit. Our heating & hot water wiring were wired up completly wrong, however Tom traced all the faults back and corrected them one by one. We now have everything working correctly, so i cant recommend Gas Tech Heating enough. Cheers Tom :)
Very impressed with Gas Tech. Good communication and availability. Excellent quality work and very reasonably priced.
This was the first annual service of my new combi-boiler and I was able to tell Gas Tech's Tom when he arrived how pleased I've been with it. He arrived with a smile within the time given, and checked everything thoroughly and with care. I can recommend Gas Tech Heating unreservedly.
Very Helpful On time and friendly/professional I had a slight (unfounded) concern Gas Tech returned as soon as they could and dealt with the concern Would recommend Gas Tech highly
Great reliable service!
Arrived on time, identified the problem with my Viessmann boiler and fixed it. Left everything clean and tidy. Tom was also happy to answer all my techie questions!!
Friendly, efficient boiler service
Tom arrived within the scheduled time and fitted a new pump, all working well, now.
Tom carried out the yearly boiler service. Always on time, no mess and very professional.
Very prompt and professional. Would use them again without hesitation
Very satisfied.
Tom of Gas Tech is always so helpful when there is a problem. Promptly sorted out a boiler issue. Great service and so good to have someone reliable.
First time using Gas Tech Heating, great communication, job completed in an efficient tidy manner. Wouldn't hesitate to recommend their company.
Polite, tidy & efficient. Thank you
Nice and easy to organise an appointment with Evie. Tom did a great job, professional and friendly.
Leo was punctual and polite, a pleasure to have him in my home. Gas Tech Heating is helping me sort out a host of problems from boiler to shower to leaky sink in a house I have just bought. Recommended by my new neighbours and I feel like I am in good hands.
I cannot express my gratitude for the level of service I received from Gas Tech. They were second to none. Not only did they manage to squeeze in the replacement of my elderly mother’s boiler before Christmas (at short notice) but also detected the carbon monoxide coming from her gas fire. In short, they saved her life. So professional, Absolute Heros !
Knowledgeable and helpful engineer. Gave his recommendations. Tidied up too. Helpful booking and admin at the office too. Did what they said they’d do. What more do you want?
Great timely service and care for customers. Highly recommend!
I have been using Gas Tech Heating every year since 2017 both at home and now at work as well. They do a great job, are friendly and efficient and I would have no hesitation in recommending them to anyone.
Tom was very friendly and professional and carried out a thorough investigation and service of my boiler. He explained everything in easy to understand terms without the use of jargon. I am very happy with the services provided, I would definitely recommend Gas Tech Ltd and will be using them again in the future.
Tom and Leon did a fantastic job on fitting my new boiler there very professional
Outstanding service. Thomas arrived on time after a courtesy text. Diagnosis of the problem was swift as was the resolution. Totally professional and polite and no time wasting chit chat just 100% commitment to getting the job done. It’s fantastic having hot water again. Thank you
Gas Tech have just replaced my ageing boiler with one they recommended, having done a power flush the day before. They were punctual, polite, professional and didn't leave any mess. They couldn't have been more friendly and helpful and all Tom and Leo needed to keep going were frequent cups of tea! What do I know about boiler installation? Nothing. But I now have a new boiler that works and has a long guarantee and that gives me peace of mind and is all I need to know. Evie in the office is also exceptionally helpful. On the basis of this I would be happy to use Gas Tech for any future plumbing needs.
We decided to have a solar installation and combined with this wanted to drastically improve our plumbing system by removing tanks, pressurising, incorporating a solar compatible Megaflo cylinder and changing showers to suit. Gas Tech engaged with our solar installer to design a compatible system and then installed with care and consideration, producing an outcome which absolutely meets our expectations. Excellent job.
On time, good communications and friendly capable staff. Tom did an excellent job ! Thank you.
An Extremely efficient and professional service provided by Gas Tech
Very pleased with my boiler service from Tom. Good communication and service for a fair price.
Excellent team. Rectified our plumbing issue efficiently. Lovely guys. Highly recommend!
Super efficient and friendly service. We've used them twice and highly recommend. Thank you very much Evie and Tom.
Needed a prompt repair. Called Gas Tech Heating and Thomas arrived to sort our boiler later same day. No fuss just fixed. Recommend & will call again if needed.
Extremely efficient and friendly service. Would recommend.
Very professional service - right from the initial communications to the day when Tom carried out the boiler service.
Our engineer Thomas arrived punctually. He listened to our concerns about the central heating and boiler and then carefully and thoroughly checked the radiators and the boiler. He identified the problem and gave us good advice . He was very helpful and pleasant. Top man!
Efficient and helpful as always
Quick response time and great service. Would definitely recommend.
Evie, the Office Manager, was not only efficient but went well beyond normal working hours to source the water pump that was so necessary. Tom fitted the pump the following afternoon, and did another excellent job. Tom is always prompt, thorough in his work and in clearing up afterwards. If I could give 10 stars I would! Thanks again.
Tom is hard-working, efficient, reliable, friendly and has great communication skills, we've used him for years and will continue to. Without a doubt, I recommend Gas Tech Heating to everyone!
Professional and efficient at fitting dual fuel oven - would recommend
Second time we have used Gas Tech to add/change a radiator. Tom and Leo did a great job. Neat pipework in a tricky situation. Wouldn't hesitate to recommend. Many thanks.
Excellent service, thank you Tom!
Great service from Tom and the team, super professional and knowledgeable. Would highly recommend.
Easy to book, clear details of time of arrival and updates, job completed with professionalism, will use again.
Tom and his apprentice were lovely. Both very polite, answered any questions I had and very tidy which is a bonus. Evie who has been arranging the booking was very helpful too, can’t recommend them enough.
Tom came to do our annual service, I got a text message as expected to aware me of his arrival. It was quick and efficient, he kept everything tidy and all was given the all clear. Great price and Fantastic service as usual from Gas Tech Heating. I will always recommend Tom and his team at Gas Tech Heating. Thank you Tom.
Arrived on time having previously sent email advising us of intended arrival time. Work carried out efficiently and cleanly
The repair man came and found out directly what was the faulty part, he then directly drove away to get the part and replaced it when he came back. He also did some checks afterward for heating water, radiator and if any gas leaks were occurring after installation. Everything in less than 2 hours. All in all, I'm very satisfied by the service!
Absolutely outstanding service!!! I can’t recommend enough Thomas, Leo and not forgetting Evie too!!! I have never seen such a professional and knowledgeable team ever!!! Thank You for all your hard work in terms of replacing the boiler!!!
Really impressed with the workmanship that Tom and his Father, carried out at my home. Punctual, professional and extremely reliable. Work is of the highest standard.
Great service!
Tom was fantastic and extremely knowledgeable. He was able to fix a problem that we have had with our heating that two previous plumbers could not. He went above and beyond and was amazing at fitting us in at such short notice. We would highly recommend Gas Tech Heating.
looking at problem relating to water softener leakage and sorting
I've used them a couple of times and they've been great both times. I would highly recommend them.
As a non-UK landlord, every time I need to find a contractor I get really nervous for obvious reasons. Firstly, I want to say that dealing with their Office Manager was a pleasure, and I felt very ressured at all times. The service was performed at the agreed time without any hassle. Payment was easy to make so, all in all, a great experience.
Always very friendly and professional. I've used them several times and the work has always been to a high standard.
Tom & team were very responsive of e-mail & phone, giving realistic estimates & timeframes. They dealt with various modifications to my heat pump system. The work was neat & tidy but the service & communications was on another level compared to 4 other plumbers I've tried this year!
I had an external tap fitted, the job was neat and tidy. The service was professional and carried out time efficiently. Booking was easy and I was given a time window on the day I was available for the engineer to arrive, then on the day, i received a notification warning for when the engineer was on the way, which helps when carrying out tasks of your own. Elliott (Christie Property Solutions Ltd)
Tom and his team are friendly and professional. While providing our annual boiler service and gas safety check today, Tom also spotted and fixed a small gas leak for us. Always a great experience from Gas Tech Heating. We can’t recommend these guys highly enough!
Fantastic to work with. The best local plumber I've used. Highly recommended
Always great and speedy service. Third time I have used them, twice have been emergencies and they have always been quick and efficient.
Tom and his team installed a new boiler, bathroom and cloakroom for us. They were friendly and helpful with good advice and very tidy in their work. We are very pleased with the work carried out.
Friendly, reliable and efficient. Can highly recommend
Professional, friendly and efficient service - would definitely use again and recommend.
Gas Tech Heating provided an excellent service, they were timely and efficient. The house was kept tidy throughout the works. No hesitation in recommending.
Great service, reliable and clean!!
Area
Opening times
- Monday9:00 AM – 6:00 PM
- Tuesday9:00 AM – 6:00 PM
- Wednesday9:00 AM – 6:00 PM
- Thursday9:00 AM – 6:00 PM
- Friday9:00 AM – 6:00 PM
- Saturday9:00 AM – 12:00 PM
- SundayClosed
Additional information
- Incorporated 2016
- MCS NAP-73576
- RECC
- Emergency call-outs
- Free quotes
- Commercial work
- Landlord work
- Public liability insured
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