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Greenstar Solar

Greenstar Solar

5.0(38 reviews)See reviews·Portsmouth
Solar energy system service
Greenstar Solar — Customer photo
Greenstar Solar — Customer photo
Greenstar Solar — Customer photo
Greenstar Solar — Customer photo
Greenstar Solar — Customer photo
Greenstar Solar — Customer photo
Greenstar Solar — Customer photo
Greenstar Solar — Customer photo

Reviews

Reviews are taken from publicly available sources.

CS
Chan Sheng18 August 2026

I had a fantastic experience with Greenstar Solar on my solar + battery system. Very impressed from the original consultation, they did not try to just sell their biggest and most expensive system, but rather focused on the most suitable specs for our household use. I eventually went for a 12 panel + 8 kwh battery system at a competitive price. The installation was all done in a single day. I was very happy with the overall workmanship with all the cables neatly clipped away and nothing was in the way. The aftersales care was also brilliant, all relevant paperwork were handed over to me and explained. This included all warrant information (which are insurance backed). I had to wait a long while to get the DNO letter from the grid operator and the team at Greenstar helped me chase up numerous times to get it done eventually! It's been great fun looking at the solar app and fine tuning the system every now and then!

VJ
Veronica Jefferies31 July 2026

Greenstar Solar was recommended to us by Solar Sherpa after we had started to investigate the viability of installing solar panels and we are pleased to say that the recommendation was thoroughly deserved - the company has been outstanding in its professionalism and communication throughout the whole process. The team have been faultless from our initial discussions with Jack, to Jon with his technical expertise & recommendations at two site visits and Alex at the site survey. Matt & Liam who installed the panels and Joe who installed all the electrics, were fantastic and as a team, they were determined to make the installation as tidy and aesthetically pleasing as possible. The follow-up communications with Tobias and Craig have been equally professional, helpful and instant. We are delighted with the result, equally delighted with the zero grid input to date - it has been very sunny! We highly recommend Greenstar Solar.

TM
Tracey McGrath27 June 2026

Really can't fault Greenstar Solar. From our first meeting when our options were fully explained - without a hard sell! - to the handover this week, the whole team have been friendly and knowledgeable, they do what they say they will do, when they say they will do it! We are beyond happy with our system and feel totally confident with the after care/support going forward. It's been a significant purchase - but we found Greenstar to be very competative in terms of pricing. The post installation support, advice and guidance to help us set up our system in the most efficient way is something we value tremendously. We really feel able to recommend with confidence

NA
Nigel Apsley30 May 2026

Conception to Installation, fantastic experience My first experience with Jon and the initial survey gab=ve me great confidence in the company and products, I signed almost right away. Decided to install 12 panels and a 15kw stack system . installation day came and i was so impressed with the teams professionalism and standard of work. The subsequent advice and support from Craig has been brilliant and my system is fine tuned on a great tariff as advised I am so impressed all round and no hesitation to recommend Greenstar Solar

AW
A W7 May 2026

Excellent service from the team at Greenstar Solar. We received a detailed solar and battery system proposal that was tailored to our home and electricity usage, which was competitively priced and had no unnecessary extras to inflate the cost. Since then everything has gone smoothly, with lots of communication up to the day of install. Now that the system is installed and commissioned we have already seen a dramatic fall in energy consumption from the grid and a significant proportion of our solar generation is being exported. The handover documentation pack and follow up call was very useful, as is the continued support from the team whenever we need to call on them. Highly recommended.

SM
Simon Morrison28 April 2026

Great service provided by everyone I've spoken too. Jon was great initially doing the survey. Jack in particular being very patient with all my questions and very willing/helpful to chat and discuss everything I required. Tobias has been great with responding and providing me with the documentation I needed. Then finally Craig has been great getting me set up on the system and ensuring I understood what it could do and how I could optimise my profit potential. Would definitely recommend to others and have been actively doing so on reddit etc. My system is a 27 panel, good we 13kwh battery, 10kw invertor. Best price on the market but great quality all round

AW
Alan Whitty19 April 2026

We recently had a 17-panel solar system installed by Greenstar Solar, along with a Sygenergy SigenStor inverter and battery, and the whole experience was excellent from start to finish. What really stood out early on was the level of detailed technical advice we received before installation. The team took the time to explain system design, expected performance, and how the inverter and battery would integrate with our usage. This gave us real confidence that the system was tailored properly to our needs rather than a one-size-fits-all approach. On installation day, the panel fitting team were professional, efficient, and clearly took pride in their work. The panels were installed with great care and precision, and the finished result looks neat and well-aligned on the roof. Just as importantly, they left everything clean and tidy, which we really appreciated. The electrician who handled the inverter and battery installation was equally impressive. The wiring and setup were completed to a very high standard, and everything was clearly explained to us once the system was up and running. It’s obvious that quality workmanship is a priority for the whole team. There were a few minor obstacles during the installation process, but these were handled quickly and without fuss. The team communicated clearly throughout and resolved everything efficiently, which made the whole experience stress-free. Overall, we’re extremely pleased with both the system and the service from Greenstar Solar. A highly professional company delivering quality work with great attention to detail.

Solar panel installers in Portsmouth compared

Ordered by rating, weighted by the number of reviews — businesses with only a handful of reviews do not jump to the top automatically. 5 businesses in this category in Portsmouth are compared.

RankProviderRatingReviewsOpen Sat.
1South Coast Solar Solutions★ 5,064Yes
2Greenstar Solar (this page)★ 5,038No
3Solar Voltaics Ltd | Solar & Battery Installers★ 4,949No
4EE Renewables Ltd★ 4,980No
5Diamond Green Energy★ 4,7101Yes
Contact
+442382123763www.greenstarsolar.co.ukGreenstar Solar, 8 Barnes Wallis Rd, Fareham PO15 5TU
Working hours
Monday09:00–17:00
Tuesday09:00–17:00
Wednesday09:00–17:00
Thursday09:00–17:00
Friday09:00–17:00
SaturdayClosed
SundayClosed