Hex Energy Ltd
4.7(51)Nuneaton • NAPIT • RECC • MCS




About
Hex Energy Ltd is a solar installer based in Nuneaton. They fit battery storage, underfloor heating and heat pumps, and they also service and repair heat pumps, with commercial work included. They are listed with NAPIT and RECC as an installer.
Services
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- Request quote
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Heat pump installation
- Request quote
Heat pump servicing
- Request quote
Heat pump repair
Reviews
4.7
Hex Energy Ltd customers often describe the team as knowledgeable, professional and helpful across heat pump and underfloor heating work. Several reviewers say installations went well, with clear communication and prompt responses to queries. Repeat servicing customers report good aftercare and praise the engineers, and one reviewer said energy use fell after a visit. One customer reported being left without heating or hot water after a visit, that the main issue was not found, and that a request to split the invoice was refused with only a small reduction. Another reported difficulty getting calls answered or returned about a service booking and said the company could not be trusted.
Exceptional service from HEX energy, especially Jack Edge who was extremely helpful through the process. I am a project manager who runs multiple country house refurbishments, and in a world of complexity, programme and budgets HEX really helped make this one of the most straight forward installs I have done. Tom Goulding ROAM Real Estate
This week we had Tony from Hex Energy with us servicing the Ground Source Heat Pump that was installed in our home before we moved in. We had very little information about the set up and have struggled to even get information out of the manufacturer, some other companies have visited to quote, but did not get back to us. Hex were great, from the fact we could send photos to get quotes, as we are quite remote, to the experienced engineer who serviced everything. Tony (Kent) was clearly very knowledgeable and was really driven to do a class job. He was really patient and helped me to understand what was happening with the system, how to operate it all more effectively, and advised on what was needed to ensure the correct running and maintenance going forward. Between Jade, Craig and Tony the people we've dealt with so far we felt completely supported and got the impression that this is a company that cares about it's team and customers. I wouldn't hesitate to use them again and recommend them to others! Thank you all!
Great service. Highly recommend. I had a burst pipe in my downstairs toilet. Which got taken care of by these guys. Great job done. No complaints. Highly recommend.
Engaged Hex Energy to design, supply & install a complex GHSP system, this was for a very bespoke contract, from design to completion I found them both knowledgeable & professional. The quality of their work is excellent & our point of contact, Jack, was not only very knowledgeable, helpful & professional but was also very engaging with the customer, he oversaw this tricky project through conception to completion, thank you. Would certainly use Hex again for future contracts & would recommend!
First rate service with friendly knowledgeable team. Would highly recommend. Best system on the market
Hex installed a GSHP, with about 800m of piping in our field, and a mastertherm setup. I think our project was more complicated than most, with a difficult trench dig, and all the plant going in our basement, which involved some logistical creativity. So not without snags and challenges, but The Hex team were always engaged and worked closely with us, our builders, and internal plumbers to get the job done. A year on, I'm very happy with the delivery, and would happily recommend.
This will be my first ever negative review, but I feel I have to be honest about my experience. I asked this company to investigate why our air source heating system was using such a huge amount of energy. Following the engineer’s visit and changes made to the settings, we were left without heating and hot water and I ended up having to get the system running again myself. The main issue also wasn’t actually identified during the visit. We later had another company attend who found the cause fairly quickly, which turned out to be a control panel setting issue. What disappointed me most wasn’t even the original outcome, because I understand things don’t always go perfectly, but more how the situation was handled afterwards. I tried to resolve things fairly and even offered to meet halfway on the invoice, however this was refused with only a small reduction offered. The company maintains the visit was carried out correctly and covered by their terms and disclaimers, but personally I just don’t feel the overall experience reflected the level of service I expected given the cost involved.
We’re proud to support Hex Energy as a supplier and have consistently had a positive experience working with their team. Communication is always clear and professional, and they’re organised, responsive, and easy to collaborate with. Scott in particular has been excellent to deal with - straightforward, helpful, and consistently on top of things, which has made coordination especially smooth. Overall, Hex Energy sets high standards and values quality, which makes for a strong and efficient working relationship. We look forward to continuing our partnership and would gladly recommend them as a reliable and forward-thinking company.
Had the pleasure of meeting Taylor from Hex Energy Ltd at Exhibition, HomeBuilding & Renovating show, , NEC, Birmingham, 22 Mar 2026. What a wonderful person and professional! They brought such positive energy to our conversation and clearly have a passion for what they do. The kind of person you want to work with. Fantastic experience!
Great service, helpful and professional throughout. Did exactly what was required quickly and at a reasonable price.
I originally met Hex energy at an energy show at the NEC ( or whatever it’s called these days). The original meeting was an introduction to all of the products and services. We were novices on the heat pump world and absorbed the materials presented on tha day in 2023. We eventually choose HEX to complete our energy needs in 2025 and had a complete install in two segments during the year. Everything promised was delivered, on time I. Budget That’s something I sadly cannot say for many other contractors we have used. Highly recommend Jack and his team.
Good service, good price and turned up on time 👍
Hex always respond promptly to our problems and we usually get the same engineer which helps greatly. Good service.
This company appears unreliable, having been in contact with them on multiple occasions for our ASHP service they either don’t answer the phone or return calls and claim to have made calls to book a service , which in Wholly untrue, can’t be trusted
Hex delivered on time and as planned. I was very happy that all went smoothly, the end result worked and the service was knowledgeable and friendly. I would recommend them
Hex and their team are brilliant. We’ve had their underfloor system throughout our house for at least 6 years now and cannot complain about the effectiveness of the water underfloor heating from both from a heat and cost to run point of view - especially in an older property. Prices are very competitive and services after installation are as well. We cannot fault the quality of their work, or their professionalism - very kind and helpful team who are eager to respond regarding quotations or any issues/queries we have had.
We selected Hex Energy after getting 3 quotes for our air source heat pump. They were helpful & professional from the start. They completed the installation & commissioning in the same vain plus they were competitive on price.
Super reliable and great communication. Really easy to book in and also comfortable with what you are paying. Couldn't recommend more.
Even though I was on the limit of Hex Energy's geographical area I am so glad they agreed to design and install my heat pump. most of their competitors are more interested in making a sale where Hex are interested in doing the job properly, especially the neat excavation work, so neat it is displayed on their website. Very professional company working as a team. I would recommend them, thanks team.
Jack and the team were very knowledgeable. This is new technology and they guided us through the process very smoothly. A great service and good after care. Highly recommended.
We have been experiencing issues with our heat pump since it was installed in 2021. After enduring problems with inefficiency and crazy electricity bills, and getting nowhere with the company that installed it, we contacted HEX Energy. They promptly scheduled an appointment, and their engineer, Craig, arrived right on time. He spent over five hours thoroughly inspecting and investigating everything, and the result was impressive—our energy consumption dropped by 28% the very next day. Craig explained everything in a way we could easily understand, and I’m confident that the advice and guidance he provided to improve efficiency will make a big difference. Their communication has been excellent, and we’ll definitely be using HEX Energy for our future servicing needs.
Throughout the entire GSHP installation process, they were incredibly diligent and responsive. They answered all my questions promptly and thoroughly, and their team made sure the project ran smoothly. If you're considering a ground source heat pump, I would recommend HEX energy.
We have dealt with Hex Energy for many years now. Andy who heads up the company is extraordinarily clever and great with detail. He’s surrounded by a good team. My point of contact in recent times has been Jack who is incredibly helpful, personable and efficient. I have recommended them to friends who have also used them.
Hex Energy have been fantastic from start to finish in servicing and fixing our heat pump. They are very knowledgable and reliable with a professional service. Thoroughly recommended
Hex have done an excellent job with our heatpump installation and continued maintenance and services, would definitely recommend!
We recently used Hex Energy to service our Airsource heat pump. They company was very friendly and helpful when making the appointment and answering all my questions. The engineer was excellent, very thorough and knowledgeable. We will definitely be using them next year.
Hex installed an Air Source Heat Pump in one of our Community Centres. Their tender was both competitive and thorough with a detailed breakdown of monthly heat & hot water generation, details of ASHP capacity. They pointed out that we may not need the new gas boiler and how they could link the system to our existing. The Joule cylinder recommended is a good cylinder combining thermal storage and hot water generation/storage, helping to protect the building heating from ASHP defrost cycles. They recommended variable speed pumps, reducing ongoing costs. Their tender was a very competitive, high quality response which the Council was more than happy to go with. Hex worked closely with us on the finer detail, including with our architect on the location of the external fans. At installation, we were not disappointed. The onsite team worked with us to avoid disruption to the users of the Community Centre, which included the need to retain hot water for a branch GP Surgery located within the building. Overall we are very happy with the installation, which is expected to reduce the carbon footprint of the building by around 60% and save 40% on our energy bills.
Very good, efficient, helpful service. Very happy to endorse
Hex Energy have serviced our ASHP for the last two years and we’re very pleased to recommend them.
Always had good service and no problems with the installed heat pump. Quick to respond to any queries and sort out any issues
Good service - professional, knowledgeable and efficient.
Excellent service, arrived on time and completed service promptly.
Great company to deal with, the communication is always first class and the service and knowledge is unrivalled. Highly recommended
Recently, arrangements were made with Hex Energy U.K., via Stephen Blackhall Head of Services and Maintenance, for them to travel circa 360 miles to service our installed AquaMaster closed ground source heat pumps. 22KWh.x2 Simon and Aaron, Geothermal Engineers attended, were clearly knowledgeable, efficient and thorough. A full documentation form was completed for company and my own records. I’ve never received post-service paperwork/records from other service providers so this was a welcome first! We thoroughly recommend Hex Energy for their competence and Duty of Care, far in excess of our previous experiences with the initial installer. Hex’s service charge was substantially less than the previous installer’s service and very reasonable.
Hex installed our heat pump and underfloor heating system. He’s have serviced the system since installation. Arranging a visit is easy, they are flexible and accommodating our constraints. The engineers are excellent. They are courteous, knowledgeable and really good at what they do. Would highly recommend given we have only had excellent service.
Great company with many years of experience in the renewable energy sector
We recently used Hex Energy to have our Air Source Heat Pump serviced. We got a response to our email asking if they could help us very quickly and efficiently. The engineer came on time and spent about 2 hours to check our system. He was very polite, friendly and confident about the work required. We're very satisfied and hope the firm will be able to help us again next year in spite of the distance.
Hex Energy undertook a service of our Mitsubishi Air Source Heat Pump and Ecodan Hot Water Tank. From initial contact through to engineers attendance and invoice/reporting paperwork, the service was excellent, efficient, timely and friendly. Based on our experience, I would highly recommend this company. Thank you Jack, Ian and Stephanie for your courteous assistance.
Hex have installed a brand new ground source heat pump and system for me (2022). They have a thoughtful, knowledgeable and consultative approach to design. The installation went very well and zero disruption occurred whilst the installation of the boreholes and heat pump was being undertaken, the heat pump is running smoothly and efficiently. Hex energy are an honourable and trustworthy company that do the right thing and acted implicitly well throughout the entirety of my project. They have been friendly, approachable, and professional thought-out the entire installation and I will be using them to undertake the servicing and maintenance of my heat pump for many years to come. I would most certainly recommend Hex.
Top drawer workmanship very professional team
Very knowledgeable chaps
A great company to work with, with friendly customer service and an in depth, genuine knowledge of the industry - something that's hard to come by it seems!
I've heard alot of good things about this company so i decided to get my solar heating. Brilliant service 5/5 would come again.
The most informative residential energy installation firm I have found - a very consultative approach which has been extremely helpful.
Area
Opening times
- Monday8:00 AM – 5:00 PM
- Tuesday8:00 AM – 5:00 PM
- Wednesday8:00 AM – 5:00 PM
- Thursday8:00 AM – 5:00 PM
- Friday8:30 AM – 5:00 PM
- SaturdayClosed
- SundayClosed
Additional information
- Incorporated 2015
- MCS NAP-27830
- NAPIT
- RECC
- Commercial work
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