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Review summary

Based on reviews, created with AI

Reviewers overwhelmingly had a great experience with this company. Customers consistently praise the staff for their professionalism, efficiency, and helpfulness, noting that the teams are knowledgeable and communicative throughout the entire process. Many people highlight the excellent quality of the work, from installations to tidiness, and appreciate the clear explanations provided about the products and services. The overall user experience is frequently described as smooth and satisfying, with many consumers recommending the company. However, some customers also noted that getting answers to queries from office staff was not always straightforward. Additionally, a few people mentioned a slow start to the installation process, though the on-site teams ultimately completed the work professionally and efficiently.

What people talk about most

Staff

Clients share positive opinions on staff, consistently praising their professionalism, helpfulness, and... See more

Service

Consumers find service to be positive, consistently praising the efficiency, responsiveness, and... See more

Product

People report positive experiences with products. Customers are pleased with the quality and functionality of... See more

Quality

Reviewers mention positive feedback about quality. Customers are very pleased with the outcome and the... See more

Sustainability

People report positive experiences with sustainability efforts. Many customers are delighted with... See more

User experience

Reviewers highlight positive aspects of user experience. Customers consistently praise the clear explanations... See more

Based on these reviews

Rated 5 out of 5 stars

Friendly staff Jordan and Keran turned up just after 08.00 wasting no time and informing us of what they were going to do and got on with it. Tidying up as they worked and assisted with our phones u... See more

Rated 5 out of 5 stars

Thankyou George and the crew. Ours was quite a big job requiring pipe work from scratch throughout in an old granite house with modern extension, the work which required maximum disruption but was ca... See more

Rated 5 out of 5 stars

Jack, James and John worked cleanly and efficiently to complete our solar panel fitting in Dorset. They made sure the panels were sitting flat on our roof, which was a challenge, but they worked tirel... See more

Rated 5 out of 5 stars

GreenGenUk have recently installed an air source heat pump to replace our old oil boiler and oil tank. We were extremely happy with the quality of the work carried out by Ali and Dan. As the system w... See more


Company details

  1. Solar Energy Company
  2. Electrical Installation Service
  3. Heating Contractor
  4. Heating Equipment Supplier
  5. Boiler and Heating Service
  6. Solar Energy Equipment Supplier

Written by the company

GreenGenUK is an award-winning provider of renewable energy solutions, proudly serving the South West since 2011. Originally based in Cornwall, we specialise in the installation of Air and Ground Source Heat Pumps, Solar PV, Solar Thermal, and Battery Storage Systems. We partner with leading brands like Mitsubishi, Samsung, Vaillant, JA Solar, AIKO, Jinko, Q.Cells, Tesla, SolarEdge, and GivEnergy, delivering high-quality, energy-efficient solutions tailored to meet each customer's unique needs. Our installations are carried out to industry-leading standards, ensuring maximum efficiency and long-term performance. Customer satisfaction and peace of mind are at the core of our services. GreenGenUK provides comprehensive aftercare and support for all renewable energy installations, guaranteeing smooth operation for years to come. We offer extensive manufacturers' warranties, with some lasting up to 30 years, emphasising the durability and reliability of our products. Our commitment extends further with our workmanship warranty of up to 10 years, showcasing our confidence in the quality of our work and dedication to customer support. As an MCS-certified and TrustMark-accredited company, GreenGenUK adheres to the highest industry standards. Whether you're looking to lower your energy bills or adopt a greener lifestyle, GreenGenUK is your trusted partner for sustainable energy solutions in the South West.


Contact info

4.8

Excellent

TrustScore 5 out of 5

164 reviews

5-star
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Hasn’t replied to negative reviews

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Rated 5 out of 5 stars

Solar panel and Tesla Powerwall installation

Zakk, Jack, Max and the rest of their colleagues were a delight to have at our property. They worked incredibly hard, extremely professional and just nice people to have working around our home. The system itself was very well designed and is now working as specified. We have no hesitation in thoroughly recommending Rob and his team at GreenGenUK.

April 2, 2026
Unprompted review
Rated 5 out of 5 stars

Excellent from quoting to final paperwork

From quoting to final paperwork, Greengen were efficient and responsive. The scaffolding went up on the day planned, they started work despite really awful rainy conditions and completed the work within the schedule timescale. Both John electrician and Lewis Roofer were highly professional at all times and conscientious - taking of boots every time they had to walk through.
The panels look great - are producing loads of electricity and the battery is really saving us ££££.
The office staff were also very approachable and responsive to any queries.
Highly recommended from Falmouth

February 9, 2026
Unprompted review
Rated 5 out of 5 stars

New fourth Tesla Powerwall Battery Fitted

Following Storm Goretti and the 67 hour powercut, we have just had a fourth Tesla Powerwall Battery fitted to complete the set and give us an improved resilience. The team were friendly, businesslike with a can-do attitude. Rapidly fitted the new battery, installed an update to the software and tested the system. Installed in around two hours, i was very pleased with the team and recommend them. Thanks guys.

February 19, 2026
Unprompted review
Rated 5 out of 5 stars

Shaun was brilliant

Shaun was brilliant, punctual, efficient, tidy and he worked methodically to assess the issue. He took the time to explain everything to me.
Thank you.

January 16, 2026
Unprompted review
Rated 5 out of 5 stars

Solar and heat pump…

We had solar fitted (including battery) in the autumn and then a heat pump in the run up to Christmas. Both George and Jordan worked really efficiently and diligently to get us up and running. They left no mess and were very informative with the handover. I would definitely recommend GreenGen.

January 13, 2026
Unprompted review
Rated 5 out of 5 stars

Heat Pump, Solar and Battery

Had two systems installed by GreenGenUK, a heat pump and solar with battery. Both systems have been installed with only very minor issues. Any system installs like these would have issues as its engineering, the team sorted anything I asked of them very quickly and with no fuss. The systems are being tested with this cold and slightly sunny spell we are having and both are working as I would have hoped and not like some would have you believe they might work. House is at 21 degrees all the time, via the Heat Pump, and the solar is producing generous amounts of kWs even during the winter months. I would definitely recommend GreenGenUK to install systems at your home. Great work and thank you.

January 5, 2026
Unprompted review
Rated 5 out of 5 stars

heat pump from GreenGen and service

Have had a heat pump from GreenGen since last year in our older 1930’s house and it has worked well, the house more comfortable than with the previous oil CH and cheaper to run.
First service today with Alistair was very satisfactory and he answered my queries regarding the various settings and options to maximise the function of the HP very clearly.

November 12, 2025
Unprompted review
Rated 5 out of 5 stars

My ASHP failed just before Christmas

My ASHP failed just before Christmas. I contacted GreenGen (unfortunately it was a weekend). Alistair the engineer called me back the same day and attended the following day to fix it ( on a Sunday ) He also checked all was well subsequently, so I was very pleased with the level of service, thank you Alistair & GreenGen 😄

December 20, 2025
Unprompted review
Rated 5 out of 5 stars

Green gen are a brilliant company

Green gen are a brilliant knowledgeable company who can't do enough to help. Alastair was very responsive and went out of his way to sort out our heating issues over the Christmas period. Can't recommend them enough 😁

December 27, 2025
Unprompted review
Rated 5 out of 5 stars

Brilliant Service

Ali was top guy, very quick and tidy and professional, Thankyou so much for all your work, great system and very happy with results.

October 27, 2025
Unprompted review
Rated 5 out of 5 stars

GREENGENUK, Solar panel and battery installation

Greengen kept me informed throughout the installation process and advised me of any delays and dates when work was postponed during the recent appalling weather. I would like to take this opportunity to thank Jordan and Jake, the electrical team for the neat installation of all the electrics and the Tesla Powerwall 3 system also for running me through the whole installation on how it all works, much appreciated,

Secondly the Solar panel installation team Simon and Kieren who had to fight the elements wind and rain, sorry it was so bad for you, but well done for persevering and getting the panels on and thirdly the back office team, Sophia, Mawgan and Jack for your help and organising the installation.
Well done GreengenUK, highly recommended, wish I had done it sooner. Even in this bad weather my electricity bill is zero and have exported around 20Kw into the grid, can't wait for some decent weather when the solar panels will really ramp up.

December 5, 2025
Unprompted review
Rated 5 out of 5 stars

Absolutely fantastic service from start…

Absolutely fantastic service from start to finish Jhon and Ben both extremely knowledgeable and helpful absolute pleasure to have in the house and Liam and Millie that fitted the panels were very efficient and was done in no time. Absolutely fantastic job thank you very much guys

December 1, 2025
Unprompted review
Rated 5 out of 5 stars

Top Professionalism

Jack, James and John worked cleanly and efficiently to complete our solar panel fitting in Dorset. They made sure the panels were sitting flat on our roof, which was a challenge, but they worked tirelessly to get it right. With the adjustable fixtures on each panel, they were able to finish the job to our complete satisfaction. They made sure we were happy at every step of the way, and showed us how to use the system. We feel very satisfied with the overall experience and would not hesitate to recommend these friendly engineers at GreenGenUK. A big thanks to all involved.

June 18, 2025
Unprompted review
Rated 5 out of 5 stars

Heating & solar system

We’ve had an air source heat pump and solar with battery installed by Greengen in our new build,all went very well and the system seems to be working as it should , the guys who came out to install the system ( Zacc,Ben medlin, treeve, morgan & dan ) we’re great guys and extremely helpful, I’d recommend these guys to anyone.

October 31, 2025
Unprompted review
Rated 5 out of 5 stars

Air Source Heat Pump Installation

A big thank you to Max G. for his diligence and patience installing our heat pump, particularly given the challenges he faced getting the system to 'talk' to our existing heating controls.
Another thank you to our project manager Amelia for her professional handling of a couple of issues that arose around the specifications in the quote.
And a final thank you to Ben for his clear and comprehensive explanation of how the system works.
I would and have recommend(ed) GreenGenUK to anyone who is considering solar panels or an air source heat pump, the quality of the installation work is excellent.
I would advise active engagement with the operations team in the office as being and intelligent customer helps them to be an intelligent supplier.

October 31, 2025
Unprompted review
Rated 5 out of 5 stars

I have just had an airsource heatpump battery bank…

I have just had an airsource heatpump Battery bank and EV charger installed. The process from start to finish has been very efficient. The house plant room space was not generous but the engineers Ben E Plumber and Jake Electrical with their helpers, sorted everything out and all seems to be working well. All the engineers and staff have been a pleasure to have in the house, polite, tidy and easy to deal with. I am delighted with the work and would strongly recommend Greengen.

November 14, 2025
Unprompted review

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