Endorsed by Which?

Sussex Solar Ltd

5.0

131 Reviews

Opening Hours
Today - 09:00–17:00
  • Monday 09:00–17:00
  • Tuesday 09:00–17:00
  • Wednesday 09:00–17:00
  • Thursday 09:00–17:00
  • Friday 09:00–17:00
  • Saturday - Closed
  • Sunday - Closed

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About

We are a family-owned, renewable energy company, operating since 2005. We install solar PV panels, Tesla Powerwalls, heat pumps and solar thermal (hot water) systems. We also provide a comprehensive maintenance and repair service. Based in Horsham, West Sussex we are known for our technical expertise, high standards of workmanship and excellent customer service. We preserve our great reputation by never subcontracting our work to others and we keep our installations to a geographical area that we know we can support with ongoing service.

What we do

  • Renewable energy

    • Air source heat pumps
    • Solar water heating
    • Solar panels
    • Home energy analysis
  • Electricians

    • Electrical testing services
    • Electrical installations
  • Smart Homes

  • Air conditioning contractors

  • More Services

    • tesla powerwall
    • energy storage
    • solar pv
    • energy batteries

Customer reviews

Why you can trust these reviews

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100% of the reviews we publish have been through our stringent moderation process.

5.0
131 reviews
Customer Service
5.0
Quality
5.0
Value
5.0
Sort by
Solar Panel Installation
Customer Service
Quality
Value
The installation of 16 solar panels and Tesla battery system was installed on time and in budget. The great benefit was the installers -from the scaffolding team to the roof panel team and the electricians were all very professional, knew what they were doing and very helpful. Clearly they were very experienced with the system and demonstrated on the final day how everything worked and then a follow up from the director of the business signed of the workmanship and again went through the app and how to get the best from the equipment. Since installation we have had sunshine everyday so currently in week one -no charges from the electric supplier.
Customer in West Sussex Posted on 06/05/2026 , work completed 21/04/2026
Old fashion customer care
Customer Service
Quality
Value
From the dart of the initial phone call to the office staff through management and tradesmen …very polite, knowledgeable and helpful … my wife and I would wholeheartedly recommend this family firm ….would use again no problem…
Customer in West Sussex Posted on 29/04/2026 , work completed 20/03/2026
Exceptional service from Sussex Solar
Customer Service
Quality
Value
From first contact, through initial visit to final installation our experience of Sussex Solar has been excellent. The office team, estimator, contract manager, electricians and installers were all professional, friendly and helpful. The installation of the panels was quick and trouble free and the installation of the Powerwall battery and Gateway was highly competent and professional and the explanations/instructions provided were clear and helpful. Follow-up support to answer any questions has been terrific and the final visit by the owner/director (Andy) confirms the family involvement and standards demanded by them. Strongly recommend Sussex Solar
Customer in West Sussex Posted on 29/04/2026 , work completed 16/04/2026
Exceptional service
Customer Service
Quality
Value
I recently had a 7.28kWp solar PV system installed, a 9kWh Sigenergy battery and inverter. In the same week, I also had a Vaillant Arotherm Plus 5kW heat pump and a new Vaillant hot water cylinder fitted. The entire process was handled exceptionally well. The initial contact and quotation were clear and professional and the design and planning phase gave me confidence in the proposed setup. During installation, the team was excellent. They were respectful, tidy and always willing to accommodate my preferences. They left the house clean at the end of each day. What stood out was their attention to detail and willingness to go the extra mile on several occasions, exceeding my expectations. After installation, I was given a thorough and detailed handover, ensuring I understood how everything worked. The following week, the owner personally visited to carry out a quality control check, which further reinforced the level of care and pride they take in their work. Overall, I am very satisfied with the service and the end result. I highly recommend Sussex Solar to anyone considering solar or heat pump installation.
Customer in West Sussex Posted on 17/04/2026 , work completed 02/04/2026
The trader replied (on 21/04/2026)
Thank you very much for taking the time to write such a detailed review. We are delighted you are so happy with everything. We hope your solar, battery and heat pump set-up give you many years of service and, if any problems, we are just a phone call away.
Highly Recommended.
Customer Service
Quality
Value
Sussex Solar have just completed the installation of a new PV system and battery at my home. The whole process was seamless and well organised from first contact through installation to sign off. I would have no hesitation in recommending them to a friend. Thank you to all the team at Sussex Solar.
Customer in West Sussex Posted on 17/04/2026 , work completed 25/03/2026
The trader replied (on 21/04/2026)
Many thanks for your review and we are delighted to hear that your experience was seamless. We shall make sure we pass on your thanks to everyone in our team.
Heat Pump Installation.
Customer Service
Quality
Value
We chose Sussex Solar because we wanted to use a local company. Tom was very thorough in his survey and their advice regarding our move from oil central heating to a heat pump was so valuable. They even invited us to their headquarters to view a working system. Unlike other providers, they were able to customise the design to match our specific requirements, advising us along the way. The installation itself was excellent. Lewis and Finn, the plumbers, were totally professional and the standard of work was exemplary. The installation has been working well and it is so nice to be cozy and warm! They are a family company and passionate about the energy transistion. They train their own people and bring apprentices into the company which is so important. We are confident that should we experience any problems, Sussex Solar will be there to help. We would highly recommend them.
Customer in West Sussex Posted on 11/04/2026 , work completed 19/03/2026
The trader replied (on 13/04/2026)
Thank you for your kind words about our team and for shining a light on their professionalism and workmanship. We are passionate about apprenticeships (and training in general) and we all really enjoy sharing our skills and knowledge with the next generation.
PV and battery installation on new build
Customer Service
Quality
Value
Sussex Solar had previously installed a system on our current Victorian house 5 years ago. We are just completing a new build as we downsize and they were a natural choice to fit a PV and battery system for us again. Andy, Dominic and the team are very knowledgeable, efficient and provide great advice and service. We are delighted with the equipment installed and the neat tidy workmanship. They were really flexible around our build - thank you guys. Much appreciated.
Customer in East Sussex Posted on 01/04/2026 , work completed 25/03/2026
The trader replied (on 03/04/2026)
Thank you for your review and for your repeat business too! Our reputation hinges on our choice of materials - installing high-quality equipment from manufacturers who provide responsive technical support is important for your and our long-term peace of mind. We are delighted you are so happy with everything.
7 panels and a 9.5KWHr GivEnergy battery
Customer Service
Quality
Value
WE chose Sussex Solar because they're a friendly local company and we were not disappointed with the equipment they have supplied and the installation job. The team were friendly, got on with the job (in all weathers) and took time out to explain what they were doing. The scaffolders were great too. We had an issue with the inverter unit post installation that was diagnosed and replaced by SS in conjunction with GivEnergy. We have now been running smoothly for over a month and are very satisfied with our choice of supplier and the job they did. Our thanks to the entire team.
Customer in West Sussex Posted on 17/03/2026 , work completed 16/01/2026
The trader replied (on 19/03/2026)
Thank you very much for your review and for your kind words about our team. We are glad you are happy with how your inverter issue was handled and it is our pleasure to have you as a customer.
Outstanding Service
Customer Service
Quality
Value
When we had a major issue with leakage of our solar panels, we were forced to look else where, as the original supplier of the system, no longer provided this service. It was a particularly tricky job, as the house, is a large Scandinavian ECO property. so lots of insulation and boarding of the loft area. Andy the Managing Director, came out immediately, looked at the issue, sent a drone up to check the panels on the roof, and then arrange for one of the engineers to attend, just a few days later. After various checks, they found the leak, and administered the repair. The system is an integral system, so not easy to deal with. What's more they found other small issues that we had not noticed, and sorted those. In addition, because of there expertise, they pointed out issues with our underfloor heating, that we are now getting done. Pleasant and very prompt efficient staff from the initial call, to the finished job. Brilliant service !!! Will potentially be looking at expanding our solar requirements. I did call another local company and was asked to email in my issue, which i promptly did. That was a week ago, still not heard back, i know which company i will be using for all our future requirement's
Customer in Posted on 12/02/2026 , work completed 11/02/2026
The trader replied (on 16/02/2026)
Thank you for your review. It was a pleasure to visit your property to diagnose and repair the problems your previous installer could not fix. We look forward to hearing from you when you are ready to expand your system, or if you encounter any further problems with your system in the meantime.
Solar Panels with Powerwall 3
Customer Service
Quality
Value
It has been couple of weeks since Sussex Solar finished the installation of our system and we are really pleased with the result. We chose Sussex Solar as they have been in the business a long time, were experienced and had an in house team and admin. We had a site survey, which lasted about 2 hours, where we were able to ask lots of questions and get an idea what system was best for us. No pressure, just honest advice. Once the DNO application was approved then we were scheduled in, with work starting in January. The weather was very wet, but the team were great. Friendly and conscientious and hard working. When they needed to come inside, it was shoes off every time. A nice thoughtful touch. Our roof is pretty old and fragile - the tiles were easily broken, but the team took great care and replaced all the tiles that gave up during install. It took time, but they made sure the job was done properly. Nothing was botched or hidden away. Again, once the scaffolding was removed they sent one of the scaffolding team to fix some tiles that were broken during the scaffolding process - again great care and attention. Once the system was installed the MD and advisor came round to check the system and give us an overview and advice on setup and tariffs etc. Now we now charging the battery overnight on the cheap rate and using this by day along with solar topping up it up and exporting excess - even during a wet, cloudy February... Great work Sussex Solar!
Customer in West Sussex Posted on 10/02/2026 , work completed 20/01/2026
The trader replied (on 12/02/2026)
We're so grateful for the time you have taken to write such a detailed review. Our prospective customers find this level of detail really helpful when choosing an installation company. We're also delighted that you are so pleased with everything and we look forward to looking after your system in the years to come.
Five Star Service
Customer Service
Quality
Value
After reading about Sussex Solar in the wonderful free distribution magazine 'All About Horsham', I had no hesitation in contacting them for a quote. Having solar panels for several years, it felt like time to acquire a battery to charge up from them to make our household energy use more efficient. The affable director, Andy, visited promptly, and I was soon sent competitive quotes matching my requirements. As soon as I accepted the one that suited me best, Sussex Solar swung into action, approaching the relevant authorities to get the necessary permission. This took a few weeks, but soon enough I was given an installation date on which Wesley and Fin turned up, working quietly and efficiently throughout the day to install my brand new battery. Immediately up and running (silently), I am delighted and have no complaints. Andy has recently returned to check that all is in order and give me final instructions on how to monitor the battery's activity using the free app I'd been shown how to download onto my smart phone. Fantastic! I would recommend Sussex Solar to anybody.
Customer in West Sussex Posted on 28/01/2026 , work completed 19/01/2026
The trader replied (on 30/01/2026)
Thank you very much for your detailed review. We return to all our installations for a handover once completed so we can explain the system, carry out quality checks and discuss the best ways to use the system to save money with your energy supplier. We are delighted you are so happy with everything and we look forward to supporting your system going forward.
Solar Panels & Powerwall 3
Customer Service
Quality
Value
I chose Sussex Solar after getting a selection of quotes & deciding that they looked the best from both reading previous reviews & the fact that they were local. Their proposal (15 solar panels & a Powerwall3) was very detailed both in terms of what would be installed as well as the projected performance of the system & I was happy to proceed. The installation team did a great job in really horribly wet weather over a couple of days in early January & installed all the equipment where I wanted including suggesting a location for the earth rod that didn't affect my recently installed patio. The system looks very neat both in & outside & is performing well so far. In fact it managed to produce 7.8kWh the other day which I thought was pretty good for the third week of January in the UK !
Customer in West Sussex Posted on 26/01/2026 , work completed 06/01/2026
The trader replied (on 27/01/2026)
Thank you very much for your review and great news that you are generating well, even in this gloomy, wet January. You're right, our poor installation team has experienced some pretty awful weather recently, but they are a very resilient bunch and still deliver high quality installations with a smile :-)
Solar Panels and Battery
Customer Service
Quality
Value
Sussex Solar recently fitted Solar Panels and a Tesla battery, they were great at explaining the process, what would happen and when. The actual work was done quickly and tidily the guys were great at keeping disruption to a minimum. Even in poor weather we are now generating some electricity and because of the battery we won't be (much) affected by power cuts. They really knew what they were doing and told us the truth, beware, there are companies out there who do not!
Customer in Posted on 22/01/2026 , work completed 15/01/2026
The trader replied (on 23/01/2026)
Many thanks for your review. That's great to hear that you are generating electricity and no longer so prone to power cuts. As you noticed, we try our best to foster open and honest relationships with our customers through frank and factual dialogue.
Ground mounted solar panels
Customer Service
Quality
Value
Great installation team and kept up to date throughout the process. I'm really happy with my new ground mounted solar panels.
Customer in Surrey Posted on 21/01/2026 , work completed 09/01/2026
The trader replied (on 22/01/2026)
Thank you for your review. Your ground-mounted panels on sleepers look lovely and we are delighted you are so happy with them.
Solar Panels and Air Source Heat Pump in old house
Customer Service
Quality
Value
Sussex Solar did a fantastic job specifying and installing solar panels and an air source heat pump (to replace our existing gas boiler), that met the requirements of our old house and our budget. From the initial survey, to the end of the installation the Sussex Solar team were friendly, positive, well informed and diligent. The workmanship (plumbing and electrical) was of very high quality and carried out neatly and precisely. It was a pleasure to have the team working at our house, they brought great energy and had a considerate, thorough and careful approach to their work. The results have been excellent. The system has now been in place for 11 months and has worked brilliantly. The house feels warmer than when we used a traditional gas boiler, our bills are lower and we are using only renewable electricity. We live in a late victorian house with modern radiators and an unusually sized hot water tank due to space limitations. A few firms looked at our situation and told us that an air source system was unlikely to be practicable, requiring a large air source unit and substantial new plumbing. However, Sussex Solar were able to specify a modern air source heat pump (the Vaillant AeroTherm plus with R290 refrigerant) that works with our existing radiators and hot water tank to provide efficient heating and hot water without extensive and costly re-plumbing. We couldn’t be happier with the solution Sussex Solar have installed for us and how well it has worked.
Customer in West Sussex Posted on 15/01/2026 , work completed 01/03/2025
The trader replied (on 22/01/2026)
Thank you for taking the time to write such a detailed review and for your kind comments about our high standard of workmanship. It is particularly rewarding to hear how well your solar panels and heat pump are performing 11 months after your installation. It was a pleasure working for you.
Highly recommended
Customer Service
Quality
Value
There’s a reason why you choose a family run business and this is one that delivers. Professional people doing a professional job. I can’t fault the team through the whole process from the initial phone contact with Charelle to the site survey and the completion of the works they definitely exceeded by expectations. From the staff in the office to the lads on the site every aspect was carried out with care and a level of professionalism that is rare these days. I cannot recommend highly enough.
Customer in West Sussex Posted on 13/01/2026 , work completed 19/12/2025
The trader replied (on 22/01/2026)
Thank you for your kind words and for recognising the professionalism of our team. We are very lucky to have a wonderful, committed group of people working for us and they are instrumental to our success and our 20 year history.
Excellent throughout
Customer Service
Quality
Value
The whole team at Sussex Solar has been excellent throughout. From our initial enquiry through to completing the installation of a heat pump in our 1970s 4 bed house, we could not fault the customer service. We were replacing our life-expired oil boiler system under the government Boiler Upgrade Scheme. We wanted to use a reputable local supplier with the expertise to specify reliable equipment that would integrate with our existing pressurised hot water cylinder. We felt confident that they understood our requirements and would only recommend a product if it was right for our situation. The installation work was undertaken with minimal disruption to us, by a highly professional, hard working team, and completed to a meticulous standard. Communication with us prior, during and after installation has been superb. The system was finished just before Christmas. We were apprehensive knowing that we would have a house full of people as the weather finally decided it was winter. However, the heat pump quietly ticked over, meeting all of our heating and hot water needs, and not a drop of oil was burnt to achieve it. We would thoroughly recommend Sussex Solar if you are considering upgrading to an air source heat pump.
Customer in West Sussex Posted on 05/01/2026 , work completed 12/12/2025
The trader replied (on 06/01/2026)
Many thanks for your detailed review and your kind comments about our team's workmanship and professionalism. Having a new heating technology installed just before Christmas is a real leap of faith and we are delighted your new heat pump has met all your expectations. Thank you for choosing us for your installation and we look forward to supporting your system going forward.
Highly recommend Sussex Solar
Customer Service
Quality
Value
We’ve just had Sussex Solar install some solar panels and a battery. We contacted several companies for prices, including a scheme sponsored by Surrey County Council, a couple of energy suppliers plus some local specialist installers. We soon realised that the best option was the local installers who specialise in this kind of work. The others seemed slightly off-hand and uninterested. Right from the first meeting we were impressed with Sussex Solar. No hard-sell, just useful advice. The quote was fully detailed and easy to accept (online). It wasn't the the cheapest - but it was (so far) worth the little extra we paid for the quality. There was a slight delay in getting the work done due to their commitments etc but it finally took place over 3 days in December. Everything went very smoothly from the erection of the scaffolding through the roof installation and battery installation. The whole team were professional. The roof installers even working through atrocious weather to get the panels mounted. Once the battery was installed and the whole system working everything was explained. There was a follow-up visit a week or so later to check it was all OK. The wiring in the garage is all very neat and labelled (for any future electrician working on the house). All mess cleared away. All in all, we’re very happy - now we just need some sun!
Customer in Surrey Posted on 22/12/2025 , work completed 03/12/2025
The trader replied (on 04/01/2026)
Thank you very much for your kind words about our team. We are delighted you were so pleased with our installation process and neat workmanship. As you noted, our slightly higher pricing enables us to take our time with our installations and not cut corners to save costs, resulting in neater installations and excellent customer service. We look forward to supporting your system over its lifetime.
Great solar and battery installation
Customer Service
Quality
Value
We had 9 Canadian Solar panels installed with a Tesla Powerwall 3 combined battery/inverter. Sussex Solar were very professional and organised throughout the process, keeping us informed at every stage. The design and proposal from Sussex Solar were detailed and included three options for the battery/inverter. I chose the Tesla Powerwall 3 for its simplicity of operation and versatility. Sussex Solar made site visit after the installation to check everything and make sure we understood how things worked. We have moved our electricity supply from OVO to Octopus, to allow us to take advantage of the Intelligent Octopus Go tariff, to allow us to charge our electric car AND top-up the batteries on cheap overnight electricity. Having made this switch, the battery easily has enough capacity to run the house from an overnight charge. It is still early days, but we can also see on the Tesla app. that the solar panels have been providing 15% of the energy - which is not bad, considering we have only had the system for a short time in the winter months. We plan to register with the Outgoing Octopus scheme to sell any surplus energy during the summer months. In conclusion, we were very pleased with the service and quality of work from Sussex Solar and reassured by the fact that they are a well-established local supplier.
Customer in Surrey Posted on 14/12/2025 , work completed 20/10/2025
The trader replied (on 16/12/2025)
Thank you for taking the time to write such a detailed review and we are delighted you are so happy with everything. In June this year, we celebrated our 20th year in business, so we feel we are in a good position to provide continued excellent service to you and your system in the years ahead.
Excellent
I found out about Sussex Solar through the MCS website as wanted assurance of quality work. From the start of the consultation with Andy it has been a great experience and the whole team with the installation and the whole process. Even during the installation the team were always asking questions to ensure that I was happy with the install. They also had all the information I needed to reassure me that I had made the correct decision choosing Sussex Solar. Very happy with the attention to detail and the install and final checks done.
Customer in West Sussex Posted on 08/12/2025 (Reviewer did not use service)
The trader replied (on 10/12/2025)
Thank you for your review and for recognising the quality of our work and our team's attention to detail. We pride ourselves on these qualities, and your recognition is very much appreciated.
Solar Panels and Battery Installation
Customer Service
Quality
Value
From start to finish, Sussex Solar Ltd have provided an exemplary service during our solar panels installation. They took care of everything, from providing a competitive quote, supplying high quality solar panels and battery, installing them smoothly, obtaining all necessary permissions (ie building control, electricity company etc), and then great aftercare to show us how the app and system works, all in layperson terms. We are really pleased with the service and our 14 x 510kw panels are working great. Would highly recommend - thank you Sussex Solar.
Customer in West Sussex Posted on 02/12/2025 , work completed 19/11/2025
The trader replied (on 04/12/2025)
Thank you for your review and your kind words about our team. We are pleased you have been so happy with our service and we look forward to looking after your system in the years ahead.
Solar Panel and Battery installation
Customer Service
Quality
Value
Wonderful service all the way from the sight survey to the installation and Andy's visit to sign everything off. We choose Sussex Solar after a lot of research because they keep everything 'In House' and unlike the big companies do not use sub contractors. This meant a seamless and quick installation with high quality workmanship. Everybody from the Charlotte in the office to the installation team were extremely helpful and professional. We will be back for a heat pump next. Thank you
Customer in Surrey Posted on 07/11/2025 , work completed 30/10/2025
The trader replied (on 10/11/2025)
Thank you for your kind words about our team - we will be sure to pass on your lovely comments. We are very grateful that all our team members are loyal and committed individuals who go out of their way to deliver the best experience for our customers.
Industry experts!
Customer Service
Quality
Value
Sussex solar recently installed a heat pump, solar panels and battery for us. The service from start to finish was incredibly professional and we are so pleased with the finished result. The team were so reliable - turning up when they said they would to undertake whatever task they had communicated in advance they would be there to do. Would highly recommend this team of clear industry professionals who really know their stuff!
Customer in West Sussex Posted on 05/11/2025 , work completed 01/08/2025
The trader replied (on 07/11/2025)
Thank you for your kind words! It was a pleasure to work alongside you on your renovation project and we look forward to supporting your solar PV and heat pump systems going forward.
Wonderful service!
Customer Service
Quality
Value
After looking around, I chose Sussex Solar Ltd to install a Tesla Powerwall and a 3.6 kW solar PV array on our garage roof. The entire process, from the initial visit to the installation day and post-install care, was incredibly smooth and trouble-free—a truly top-notch service all around. On the day of the installation, six engineers were sent, which ensured the process went very smoothly and efficiently. I am very pleased with my installation and would highly recommend this company to anyone considering getting solar.
Customer in Posted on 27/10/2025 , work completed 16/10/2025
The trader replied (on 28/10/2025)
Thank you for your kind words. We are delighted you found everything so smooth and efficient.
Thoroughly professional installation and team
Customer Service
Quality
Value
Thoroughly professional installation from start to finish. From the initial meeting to the final handover, dealing with Sussex Solar has been a very positive experience. Everyone we dealt with, from the office/customer service side to the team on site, was efficient, polite and considerate. A simple example: we decided we wanted to move the EV charger, not a problem. I was expecting to fill in the old drill holes once they had finished, as it was my mess-up. I got home to find that Wes had done it, and colour-matched the mortar with the brick! That level of detail was consistent throughout the process. Thoroughly recommended.
Customer in West Sussex Posted on 26/10/2025 , work completed 15/10/2025
The trader replied (on 28/10/2025)
Thank you for your review and we have shared your kind words with our team, Wes in particular, who went the extra mile with colour-matching your mortar. It is always a pleasure to receive feedback on our team's attention to detail, so thank you again.