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 selection and installation
Customer Service
Quality
Value
Sussex Solar were very helpful in discussing options for solar panels, and, over many weeks, looking at various different tariffs. The installation and commissioning was quick and efficient. I would recommend them to anyone for their attentive customer service.
Customer in East Sussex Posted on 01/10/2025 , work completed 01/01/2025
The trader replied (on 28/10/2025)
Thank you for your recommending us and for your kind words about our efficiency and attentive customer service.
Really good family business providing excellent service
Customer Service
Quality
Value
Having previously purchased an EV we were keen to further improve our green credentials. We were anxious to find an installer we could trust as it appears a minefield. Fortunately a friend of my wife recommended their services as she knew them well and her parents had been delighted with their work. From the first contact they were polite and efficient arranging for Andy (owner) to visit shortly afterwards with a colleague. They spent an hour explaining and answering questions we had, so we felt we had a thorough understanding of the systems and options available. A detailed survey and assessment was carried out and detailed report provided. A tailored installation schedule was agreed, initially proceeding with solar panels and battery followed 5 months later (at our request) by the air source heat pump. The whole installation team were very efficient, friendly and professional throughout tidying up at the end of each day and providing detailed explanations for use of the system. We have been transfixed and delighted with the performance of the solar panels and battery and are hopeful and confident the Air Source Heat Pump will perform as expected over the winter. Many thanks to all the team who genuinely seem to care about the service provided.
Customer in Kent Posted on 25/09/2025 , work completed 13/03/2025
The trader replied (on 29/10/2025)
Thank you for taking the time to write such a thorough review about our solar and heat pump installations on your property. We were delighted to be recommended by your friend and we completely relate to being transfixed by the data generated by these technologies!
Good Work
Customer Service
Quality
Value
Absolutely Splendid job, they came to carry out the installation of the solar panels and battery system when they they had said. The staff where very polite and helpful, after completion I was contacted to say that they would be returning as when the photographs of the panel installation were viewed that they where not central on the roof. They returned centralised the panels looks great. Highly recommend them.
Customer in West Sussex Posted on 15/09/2025 , work completed 17/07/2025
The trader replied (on 29/10/2025)
Thank you for your lovely comments about our work. As you said, our Technical Director was not completely satisfied with the alignment of the panels and asked our team to make adjustments so everything was absolutely perfect before signing off your installation.
Look no further for solar & air source - an excellent business!
Customer Service
Quality
Value
Well, I can’t sing the praises of Sussex Solar enough. We used them to install a heat pump and solar in our 1970s 4 bed property, and we are really pleased with the results. It is a minefield out there with so many start ups 'having a go' at offering these services but lacking the expertise and experience. National organisations offer attractive deals but outsource the installation and lack customer service. I was really impressed with the reviews of Sussex Solar on 'Which', and they fully deserve their outstanding score. This is a business with integrity who will only recommend a product if it works for your situation. One reviewer had pointed out that you may pay more than the best offers out there, but the quality of service and peace of mind is worth it, and I completely agree. We went with Sussex Solar expecting a personal, professional and market leading service from a hard working family firm - this is exactly what we got. They are perfectionists. Every one of the team was impressively professional and a pleasure work with. Excellent communication within the business and with us. Andy the boss was meticulous in his approach, and the apprentices who are fortunate enough to work for this firm are highly educated, personable, knowledgeable, and have an intuitive understanding of heat pump and solar systems which they convey with confidence and in a way that is easy to understand. Thoroughly recommend.
Customer in West Sussex Posted on 07/09/2025 , work completed 22/08/2025
The trader replied (on 29/10/2025)
Thank you for your kind words. As you noticed, we are shameless perfectionists and it is very rewarding when people recognise the lengths we go to with our workmanship.
Solar installation - A great experience throughout!
Customer Service
Quality
Value
A great experience from beginning to end - We went from no solar to being fully off-grid in under a week with Sussex Solar. All members of the team were very communicative and helpful throughout. The team organising the install kept me up to date every step of the way and the fitters worked incredibly hard to get everything installed in just a few days - even with heavy rain! Finally, having Andy come around to do the final checks and take the time to explain how everything works rounded out a very good experience - would happily reccommend to anyone looking to get Solar installed.
Customer in West Sussex Posted on 13/08/2025 , work completed 01/08/2025
Relief at last!
Customer Service
Quality
Value
I contacted Sussex Solar as a Trusted Trader 6 months ago as an elderly relative was being hounded & scammed by solar / green energy companies on a regular basis. From the moment I asked for help they have been amazing. The reassurance of speaking to reputable, honest people has been such a relief. They assessed the PV system, advised the best way forward, removing unnecessary/incorrectly installed equipment in a professional manner leaving the system safe at last. The WHOLE team have been amazing. Communication by both phone & email has been patient (steep learning curve on my part!), professional, helpful & transparent - I have felt totally supported through the process and what has been a very stressful period. I cannot recommend them highly enough.
Customer in Hampshire Posted on 09/07/2025 , work completed 07/07/2025
Not a Standard Installation
Customer Service
Quality
Value
Our roof was not suitable for the number of solar panels required to provide the required power output. Thinking outside the box, Sussex Solar was also able to install panels on a detached garage roof to make up the shortfall. Along with battery storage, the system is working as specified. Due to some technical issues with our house layout, the installation took a bit longer than planned but they accommodated this without fuss and overcame any difficulties. Great Company to deal with and receive the dedicated personal service one doesn't always get these days.
Customer in West Sussex Posted on 04/07/2025 , work completed 02/07/2025
Couldn't be more delighted
Customer Service
Quality
Value
Sussex Solar finished their three day installation last week. The guys were amazing very focused and discreet. The installation was carried out exactly in the three days allocated with the battery being the last item to be installed. The neatness of all the work and the lack of disruption was brilliant. Would most definitely recommend. We also thought the price was competitive and what we were expecting.
Customer in West Sussex Posted on 02/07/2025 , work completed 25/06/2025
A company you can trust
Customer Service
Quality
Value
I contracted with the Sussex Solar team to advise on/supply/install a heat pump heating system and batteries. I found their work to be of an extremely high standard, and completed on time. Their team are friendly, efficient and courteous, I have no hesitation in recommending them.
Customer in West Sussex Posted on 26/06/2025 , work completed 06/06/2025
PV, battery and EV charger install
Customer Service
Quality
Value
Having selected the system components independently, I contacted three potential suppliers from the manufacturer's approved list and cross referenced with online reviews. All suppliers were small businesses. Of the three, Sussex Solar had the best communications (very good) and were marginally cheaper, while also accommodating the number and type of panels I'd specified, even if the fit was tight on the roof. The installation took 3 days by Sussex Solar's own personnel, who worked efficiently and were very pleasant, even offering to help with moving furniture back after the internal cable installation. As part of the commissioning, Sussex Solar also assisted with the setting up of the Apps and accounts. The only subcontracted element was the scaffold and even then the selected scaffolders were efficient and friendly. There was one small issue with the commissioning, which was quickly resolved within a couple of days, though the system was operational at the end of the 3 day installation. A very satisfactory experience from the initial contact to the final commissioning, a total period of a little over 3 months (which included the G99 application and approval from the DNO).
Customer in West Sussex Posted on 25/06/2025 , work completed 13/06/2025
A brilliant job
Customer Service
Quality
Value
We decided to replace our aging liquid solar panels with photovoltaic panels, following 18 years of free hot water between March and October. The original panels were maintained by Sussex Solar, and having been so pleased with their servicing it seemed a no-brainer to return to them for the installation of new panels. We were not disappointed. At every step, there was someone knowledgeable and helpful. The installation was efficient and mindful of the construction of the house. The installation team was professional and friendly. Barring the new items, you wouldn’t know that they had been here! We are truly grateful to Charlotte in the office for helping us with any queries and the documentation required for exporting to the grid.
Customer in West Sussex Posted on 21/06/2025 , work completed 02/06/2025
Solar and battery install.
Customer Service
Quality
Value
I used Sussex Solar (June 2025) to have a solar system and battery installed. Fantastic service from start to finish. Install took 2.5 days . Would highly recommend.
Customer in West Sussex Posted on 20/06/2025 , work completed 04/06/2025
My Battery Installation 🔋
Customer Service
Quality
Value
Very good company to use, have used them before, would recommend them to others. Their workmanship is very good and professional, and they were very helpful in installing the app on my phone. They left my house 🏠 in a very clean state. Couldn't fault them one bit.
Customer in West Sussex Posted on 19/06/2025 , work completed 09/06/2025
Excellent service
Customer Service
Quality
Value
Excellent service in fitting our air source heat pump. Prompt, polite and tidy. Follow up appointment informative and thorough.
Customer in West Sussex Posted on 12/06/2025 , work completed 30/05/2025
Patient, dependable and knowledgeable
Customer Service
Quality
Value
Sussex Solar was an impressive team, the first supplier I saw, and after searching the market, were best choice for me. They were knowledgeable, helpful, service-focused and patient over a long period from enquiry to final installation. Really nice people to deal with and gave great confidence in a space where many other suppliers are very sales-led. They were service-led and it really makes a difference. Did everything they said when they said they would do it, often before, and couldn’t have been more accommodating.
Customer in East Sussex Posted on 10/06/2025 , work completed 06/06/2025
Happy customer
Customer Service
Quality
Value
We are extremely pleased with our solar panel and battery installation by Dominic and his team. We were kept up to date at all time by the office and the installers. A neat and very professional job which was done on time and a pleasure to do business with a local family firm.
Customer in West Sussex Posted on 05/06/2025 , work completed 29/05/2025
Guildford PV installation
Customer Service
Quality
Value
From the initial site visit, through the installation and commissioning of the PV panels, the battery and car charger, Sussex Solar have provided exemplary service. All those involved in the process were fully professional and the installation was completed on time, within budget and all paperwork provided efficiently. We were kept up-to-date and fully informed throughout and were impressed to receive a follow-up site visit. We would definitely recommend Dominic and all the team at Sussex Solar.
Customer in Surrey Posted on 05/05/2025 , work completed 29/04/2025
PW3 and solar install
Customer Service
Quality
Value
High quality bespoke install - SOLAR & Battery I wanted a PW3 & solar installation - Dom and the team at SS do quality work with attention to detail. Cables and units installed exactly where I wanted for maximum aesthetics. From the back office staff to installers all were a delight. Very neat and tidy installation and works as expected first time. Thoroughly professional team who know what they are doing and care about their standard of work which is exemplary.
Customer in West Sussex Posted on 24/04/2025 , work completed 01/02/2025
Great job on Heat Pump, Solar Panels and Battery installation
Customer Service
Quality
Value
Sussex Solar supplied an Air Source Heat Pump, PV Solar Panels, Battery and Grid Gateway to our home and did an excellent job right from the initial enquiry and informative survey, through installation and final commissioning. The installation team were brilliant in ensuring we were without hot water and heating for only a minimal period and the installation itself is so neat and tidy. We're very pleased with the result and would thoroughly recommend. (We used Sussex Solar for thermal and PV panels on our previous home and were very pleased with those projects too - and the great aftercare service received over the past 15 or so years)
Customer in West Sussex Posted on 31/03/2025 , work completed 12/03/2025
Another good job for us by Sussex Solar
Customer Service
Quality
Value
Sussex Solar have been back to do another job for us! I think we first used them about 16 years ago to install a solar thermal system. Next came a solar PV system. Then about 3 years ago a 12kw Vaillant air source heat pump to replace our gas boiler. Now, more PV panels and a Tesla Powerwall. In each case, they gave good advice, designed a robust system, and installed it to a high standard on time and on budget. The few items of servicing that have been necessary have also been handled well. I highly recommend them for the range of products and services they offer.
Customer in West Sussex Posted on 18/02/2025 , work completed 14/02/2025
Solar PV, Battery and EV Charger
Customer Service
Quality
Value
Decided to invest in Roof Solar PV panels, Tesla Powerwall 3 and Zappi charger. From first contact with Sussex Solar in December, through reviewing our options, agreeing a project and the completion of the installation at the end of January, the whole process was straightforward and very professional. What I valued most was the care and quality of work carried out by every member of their team. It was a pleasure to have them work at our home. In addition, the communication with their office planning team was first class. Our Solar Thermal system was also serviced again, as part of the overall project. System working to plan and when the sun shines, wow!!
Customer in West Sussex Posted on 11/02/2025 , work completed 31/01/2025
Tesla Powerwall3 Battery Installation
Customer Service
Quality
Value
Delighted with Powerwall3 product for Load Shifting, also excellent installation process, efficiency, speed of quote and answers to questions. Everything I wished for was achieved. Electrical work neat, tidy, and proficient. The standout feature is the professional but positive likeable attitudes of all staff and business owners. I will not hesitate to select Sussex Solar in future, if or when I consider maybe solar, heat pump, or another battery. A pleasure when first time using a new supplier that they not only meet but exceed expectations.
Customer in West Sussex Posted on 13/01/2025 , work completed 07/01/2025
ASHP Heating Project
Customer Service
Quality
Value
I came across Sussex Solar while researching ASHP heating solutions through Heat Geek, and I was pleased to find that they are a recommended installer by Vaillant. Andy from Sussex Solar promptly visited to assess my project, taking detailed measurements and photos. Within a week or so, I received a comprehensive quote from them. While I had other companies provide quotes, Sussex Solar stood out for their clear understanding of my project requirements and timelines. What has impressed me was their willingness to collaborate and adapt to my needs. Throughout the project, communication with Sussex Solar has been good, shout out to Charlotte here, ensuring that every step, including the BUS grant application was transparent and well-coordinated. The only issue I had was with the base of the ASHP where it was not clear from the instructions given how far it needed to be from any wall. Other than that, I wholeheartedly recommend Sussex Solar to anyone considering an ASHP related project. Special mention to Lewis, Finley, Wes and George for a faultless installation.
Customer in West Sussex Posted on 26/09/2024 , work completed 08/04/2024
Solar installation
Customer Service
Quality
Value
Efficient and excellent from start to finish. Any questions or concerns were immediately attended to. Good team who installed the panels. Dominic was always happy to explain everything. All the staff back at the office always helpful. Thoroughly recommend
Customer in Hampshire Posted on 12/09/2024 , work completed 02/09/2024
Helpful and responsive
Customer Service
Quality
Value
We engaged Sussex Solar to install a ground-mounted array, after enquiries with a few other bigger firms had come to nothing. They were very helpful and responsive during the quotation, planning and installation process, and we wouldn't hesitate to use them again.
Customer in Greater London Posted on 08/05/2024 , work completed 26/04/2024