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Assembly Renewable Energy Group Ltd Reviews

Solar panel installer serving Londonderry, the UK

Overall Rating

4.9

44 reviews across platforms

5.0

22 reviews

Trustpilot

4.8

22 reviews

Newest Reviews (40)

5/5
Trustpilot

Can't recommend AR highly enough

Can't recommend Assembly Renewables highly enough. The whole world of eco-energy options was new to us but having looked at a few options fairly superficially, I'm very glad we went for AR. They couldn't have been more helpful and friendly. The process was straightforward, as was the installation a few weeks later. Everything was explained and done in such a way that we didn't feel like complete morons(!). Everything has been working well and efficiently since.

Mark Meynell25 Feb 2026
5/5
Trustpilot

Everything supplied

Everything supplied, installed and commissioned as planned. Great job done by friendly and professional team.

Peter WalshVerified22 Feb 2026
4/5
Trustpilot

Excellent Teamwork on Double Heat Pump Installation

Team turned up promptly on agreed start date and installed two systems - one in the main house the other in the granny annex. The installation was completed within 6 days with my wife and I in residence with minimal interuption of cooking and heating facilities. The two heat pumps were installed obove head height at the back of the house preserving the usable patio area. The installation of the pressure vessels in the loft and removal of header tanks has doubled my loft storage area although the installation of the larger main tanks on the first floor has taken away the airing cupboard shelf above the old hot water tanks. Slight dissapointment at losing my power showers but the loss of pressure has been more or less restored by installing mains pressure shower heads, still perfectly usable and more economical on water usage, which is good. Need to do a bit of decorating where the gas boilers have been removed but overall we are well pleased with the professional service and installation - thanks for a great job well done.

Ray BrownVerified9 Feb 2026
5/5
Trustpilot

Very professional clean and tidy

Very professional clean and tidy Very Helpful with the planning and both tom and ben understood my needs Will use again to extend my solar

customerVerified6 Feb 2026
5/5
Trustpilot

Install

We believe that the installers were knowledgeable and efficient. They continued working through very cold weather without complaint!

Jane O'NeillVerified5 Feb 2026
5/5
Trustpilot

Professional through out

What can i say assembly renewables from start to finish were fantasic,they went through everything with me, first of all sending a surveyor to go through what he is doing, and then send a second suveyor out, this i found was of great use. They have just not left me to do the paper work on my own, they have been there at all times and sent every thing off to make life easy for me, the quality of there work was lmpeccable so clean at all times, through out my experince with this company all of the staff have been there for me. I would highly recommend this company to family and friends Regards Chris Bougourd

Chris BougourdVerified29 Jan 2026
4/5
Trustpilot

Quick installation

Staff were well mannered and outlined the intended works. Works were done quickly and efficiently.

AlasdairVerified13 Jan 2026
4/5
Trustpilot

Assembly Renewables responded really well to our needs

Assembly Renewables responded really well to our initial concerns about the Heat Pump location. They also turned up on the agreed days (which is more than can be said for others). The quality of the work was great and the result was a exceptionally warm house and hot water. Slight concern on behalf of the workers for the late hours they ended up doing. That was the only minor gripe

AlexVerified10 Dec 2025
5/5
Trustpilot

On time

On time, on price, friendly and efficient, what more can I say.

mr a driverVerified29 Nov 2025
5/5
Trustpilot

Stress free experience

Excellent service by a helpful and knowledgeable team. Heat pump and solar installations are working perfectly, will recommend to friends and family

Richard MooreVerified29 Nov 2025
5/5
Trustpilot

Things couldn’t have been better!

From first contact to fitting the heat pump the experience couldn’t have been better. Assembly Renewables handled everything, the energy certificate and Government grant included. The team who fitted it were very pleasant and efficient and left everything clean and tidy.

Mr WadsworthVerified26 Nov 2025
5/5
Trustpilot

Great advice and experience with the…

Great advice and experience with the planning and installation. Would highly recommend!

Arjun MistryVerified26 Nov 2025
5/5
Trustpilot

Air source heat pump made easy

Air source heat pump made easy. Assembly renewables made the whole process easy, including managing the £7500 grant. The surveyors were great and the contractors who put in the system were brilliant. Very happy to recommend Assembly Renewables - in fact I already have and my neighbour is now following suit but with solar panel installation

Richard LawranceVerified25 Nov 2025
5/5
Trustpilot

An Honest & Caring Service

After much deliberation and having had the opportunity to discuss with three different air source heat pump companies, I decided to go ahead with Heat Pump installation in my property by Assembly Renewables for their honesty and their intention to address the needs of the customers. The previous companies could not provide the assurance I was looking for in keeping my house warm at the height of winter as there is a high energy loss in my property. So far, it has worked well and has met my expectations, although we are not yet in the thickest of the winter. The Engineers were experts in their own field and completed the work with due diligence and on time. There was timely and active support from the management of the company all the time. I have been so impressed with their service that I have asked for further expansion of solar panel installation to meet my electricity energy needs in the future.

Mr Saroj DasVerified15 Oct 2025
5/5
Trustpilot

They understand customer service!

We reached out to Assembly Renewables last summer and following a conversation with the sales team, we agreed that they would install an air source heat pump for us. They were courteous, efficient, and pleasant throughout. The admin/support team back at the office responded promptly to our queries, and the installations manager responded outside normal hours when we had a hiccup with the system in the early days. So now we are considering the installation of a battery to optimise our solar panels, obviously we have contacted Assembly Renewables again. This is a company that understands what customer service - including after-sales service - actually means, and delivers!

Mrs ThorneVerified3 Sep 2025
5/5
Trustpilot

Really good professional service from…

Really good professional service from start to finish, couple of minor issues that were sorted quickly. The pump is very quiet and heats very well. No issues in recommending.

Peter ParkingtonVerified29 Aug 2025
5/5
Trustpilot

Excellent customer service and expertise

Assembly Renewables supplied and fitted both solar panels and a heat pump for me. Their customer service and expertise at all stages of the process was excellent - making them stand out from other companies quoting for me. The installation was quick, clean and the fitters were professional and helpful. The 60 day check up was reassuring and very helpful - including guidance on making the most of different electricity supply tariffs in my particular situation. I would certainly recommend based on a very positive personal experience!

Alison Bovey21 Aug 2025
5/5
Trustpilot

They were really knowledgeable

They were really knowledgeable, took time to explain everything. Installation was quick, with minimal disruption.

Abbey FeatherstoneVerified19 Aug 2025
5/5
Trustpilot

Assembly renewable made the whole…

Assembly renewable made the whole process so straight forward from initial consultation to instillation of our heat pump and solar panels. They kept to time and worked efficiently in a professional friendly manner. Could not fault them and highly recommend. Our energy bills have now halved and we have become more aware of our energy usage and how best to manage.

Anthony BahadurVerified13 Aug 2025
4/5
Trustpilot

Heating energy appraisal

A thorough appraisal of our property's design, heat loss and energy requirements

Geoff PopeVerified7 Aug 2025
5/5

From start to finish everything ran extremely well, surveys were conducted thoroughly so we were matched to the correct system. The engineers who fitted the system were excellent and worked with us in positioning the pump and cylinder. The system was commissioned and is simple to use. I cannot recommend this company highly enough for a job well done from start to finish.

Nicky and Peter Parkington10 Jul 2025
5/5

Happy to recommend Assembly Renewables. They were technically well-informed, gave good advice, handled contracts efficiently, were quick and competent during the installation process, and were unfailingly friendly and helpful. It was a pleasure to work with a family firm. Most important, the heat pump plus solar installation is working well. Good job.

Simon Maxwell23 May 2025
5/5

Very happy with the results heat pump is a lot quieter than I thought it would be .the team installed the pump team installed the pump very help full and explained every thing the end of installation.performance of pump is excellent and exceed all expectations

Trevor Swann21 May 2025
5/5

Brilliant, knowledgeable, thorough and friendly survey. Absolutely professional.

David Thomas3 Mar 2025
5/5

The gentleman that came around to servay my property for the first time was very helpful and informative, giving me confidence to place my solar panel system order with assembly renewables. My experience has been very good though out the whole works, everyone that came to my home from scaffolders to installers were all so polite and friendly. Works were started on time and completed on time, no fuss at all. The system is working better than I expected making 14.4 kWh today . I have no problem recommending them to anyone who is thinking of going solar. Tony Cope Farnborough , Hants 18/02/2025

Tony Cope18 Feb 2025
5/5

Rob Wash conducted a home survey, providing a clear and professional explanation of heat pumps. He thoroughly addressed my questions, ensuring I understood their benefits and suitability for my property

Alex Osagie6 Feb 2025
5/5

In a world where service appears to have left the room, Liam and his team offer a devoted and extremely friendly service from start to finish and beyond. My solar panels were repositioned on my new roof in perfect time and with absolutely no fuss about the various issues encountered. When I suddenly found that things weren't working the aftercare was immediate. After sending photographs the engineer called immediately and ran through the various possibilities and solved the issue straight away. I would have no hesitation in using Assembly Renewals again.

Christopher Lemmings6 Feb 2025
5/5

A very professional team , everything was done on time , and very nice guy to have around the farm and house for a week. Would highly recommend this firm .

Caroline Worley21 Jan 2025
5/5

Couldn't be happier with standard of professionalism, workmanship, equipment etc The heat pump works perfectly and is quiet, and I'm pleased with it's grey exterior which fits in well outside. The team work together well, and solve any glitches that may occur. My house is a small mid-terraced 1864 property and because of the proximity to my neighbours' properties on both sides I was worried there would be sound issues. Locating the airsource heatpump slightly away from my property meant it ticked the building regs boxes, problem solved by laying cables under concrete access path and making good afterwards The pipework through my walls and roof space fine. Very tidy workmen managed to navigate my untidy cluttered house without too much obvious angst, bless them. When a slight glitch occurred with an inbuilt Legionnaire's weekly raise in water temperature triggering trip switch a week after installation it was instantly sorted and fixed the same day. After comparing four quotes I chose this company and I'm really pleased with the consistent temperature, constant hotwater and quiet and smooth running of the system. The new radiators all work well and look nice, and were tailored to fit into my small rooms both in size and aesthetics. All in all very pleased.

Buffy Tucker21 Nov 2024
5/5

Great company to deal with, badly let down by previous company i dealt with for my solar servicing and maintenance after needing help with an issue, Liam and the team got everything back on track in no time at all, they pulled out all the stops to help me get the issue resolved. Thanks

Richard Pepper19 Nov 2024
5/5

Great service. Battery Installation went smoothly and very pleased with how it is working

Vaughan Redfern9 Oct 2024
5/5

Very knowledgeable engineer a great service highly recommended

Neil Smith11 Sep 2024
5/5

It was unfortunate for the installation team (Rob and George) that they had to work on the roof over the 2 days of constant rain - 5/6th September. Despite that, they did an excellent job and apart from the panels on the roof, you wouldn't know they had been here. They took all of the accumulated rubbish away and were always polite and as helpful as they could be. The staff in the office are also on the ball and are ready to answer any questions. It remains to be seen how much money I have gained by drastically cutting my very expensive electric charges but am certain that this has been the best move that I could have made and with a very professional company. Thank you!

julie acket9 Sep 2024
5/5

At all stages of the process – through initial survey, to installation planning and carrying out the work – Assembly Renewables were professional and efficient. Their communication at all times was friendly and helpful, even before the installation began. Added to all of this, the tight-knit friendly three-strong team of installers – Rob, Luke and Jake – worked with us and around us to cause the minimum of fuss and chaos, even though the installation of a heating system in a small home seems to be almost guaranteed to create oodles of both. Everything was clearly explained to us, and they were happy to make changes and tweaks to everything we spoke to them about as they went along. We're now looking forwards to many years of clean, convenient and cheaper heating and hot water.

Max Brockbank8 Aug 2024
5/5

I chose to get a heat pump, solar panels, and a battery from Assembly Renewables, and I’m incredibly pleased with my decision. The entire process has been smooth and thorough, with professional responses to all my questions. Thank you, Assembly! I highly recommend them.

Ashley Ling16 Jul 2024
5/5

I recently had solar panels installed on my home by Assembly Renewables, and I couldn't be more pleased with the entire experience. From start to finish, their service was top-notch. The customer service was excellent. From the initial consultation to the final follow-up, every staff member I interacted with was knowledgeable, professional, and courteous. They patiently answered all my questions and provided detailed explanations about the installation process and how the solar panels work. The quality of the installation is outstanding. Thank you Assembly Renewables!

Jonathan White15 May 2024
5/5

Professional, great communication. Jacob was really nice and professional. He explained all the choices clearly, answered my questions honestly, and listened to what I had to say about how much energy we use and if we needed a battery. He didn't push me into anything, just made sure I was happy before moving forward. I feel good knowing we've found a solution that works for me and my family.

Phil Davis8 May 2024
5/5

Thank you so much ! I was so impressed with the friendly communication and you answered all my questions with a great deal of knowledge. From the outset communication was great and even continued to call after the installation to ensure everything was ok. I have been recommending Assembly Renewables to all my friends.

gemma lowe8 May 2024
5/5

Great Experience Assembly Renewables was suggested to me via a comparison site, and upon contacting them, I had the pleasure of speaking with Mel. He patiently guided me through all the details without any pressure. His quote proved to be exceptionally competitive, leading me to choose them for the installation. Mel’s professionalism was commendable, and he maintained regular communication throughout the entire process. True to their word, the work was finished promptly on the agreed-upon date. Based on my positive experience, I definitely would recommend this company.

S CH8 May 2024
5/5

Seamless, Efficient I recently had Assembly Renewables install a new heat pump in my home, and I couldn't be happier with the experience. From start to finish, the process was seamless. Firstly, their pre-sale communication was clear and thorough. They took the time to explain everything in detail, ensuring I understood all aspects of the installation process and how the heat pump would benefit my home. The installation itself was completed swiftly and efficiently. The team at Assembly Renewables finished the job in just three days, minimising disruption to my daily routine.

Emmie B8 May 2024
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