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
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Company details
- Solar Energy Company
- Electrical installation service
- Central Heating Service
- Heating equipment supplier
- Heating service
- 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
Unit A Ruston House, TR13 0FG, Helston, United Kingdom
- 01326 564513
- sales@greengenuk.com
- greengenuk.com
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Great service from enquiry to quote
Great service from enquiry to quote to installation. All the staff who came were friendly and professional. Ryan was here the most, doing pipe work etc. He made a good neat job of it all and was professional, pleasant and polite, taking plenty of time to explain what he was doing and how I could access the filters etc. Very happy customer!
Very happy with Ben who did a very…
Very happy with Ben who did a very thorough job servicing my heatpump today. Very knowledgeable and helpful!
Thank you very much!

Reply from GreenGenUK
Very helpful
Called Greengen as a local supplier to me purely for some advice. I spoke to Neil and explained my situation; he was happy to spend the time with me to give me open and honest unbiased advice. He did not try to drive any sale and was very knowledgeable, he re-assured me and provided the answers and conclusions from a professional perspective in the first instance (unlike other local companies). Would certainly be a company I'd happily look to deal with should my situation change based on that one phone call.

Reply from GreenGenUK
Heat Pump and EV charger installation
Heat Pump and EV charger installed 4 weeks ago. Installation went smoothly, most of the work being done by Craig and Andrew. Had a problem a couple of days later (solder joint failed), but it was resolved within a couple of hours - excellent service on a Sunday morning. To be fair, the joint that failed was in a tricky position, and didn't leak for 2 days.
All working as expected now.

Reply from GreenGenUK
Could not have been better
Could not have been better! John and James worked tirelessly throughout their time here. Answered all my questions and performed the nearest install. Brilliant.

Reply from GreenGenUK
Going Eco
We started our Journey with getting an ASHP and then Solar PV with battery. The staff were very helpful with numerous changes to the system to help us get the best system for us

Reply from GreenGenUK
Air source heat pump fitted…
Just had an air source heat pump fitted by GreenGen- we were very happy with their work and their attention to detail. Must particularly mention Craig who spent a week installing the system and went above and beyond in terms of making sure glitches were ironed out. He was also so friendly and respectful - can be hard having people working in your house but he was great - even indulged the 55 kg dog who wanted to be present at every stage of the installation

Reply from GreenGenUK
Top notch from start to finish
Wow! How good is this team, (Zakk, Creeve, Milly and Liam) at GreenGen UK? From our first enquiry to the finished product 10 out of 10. Efficient, friendly, professional and all with great attention to detail.
GreenGen also fitted our air source system with all of the above attributes. Thank you GreenGen.

Reply from GreenGenUK
Competitive price excellent workmanship
Competitive price, hassle free installation. Turned up as agreed. Morgan was quietly competent at laying out the many components and everything looks neat which was a, challenge in a confined space.

Reply from GreenGenUK
Great service from a local PV and battery installer from the initial discussion through to the final approval
Really delighted with the service and PV installation provided by everyone at GreenGenUK from start to finish. There have been a number of people involved and each is worth a mention:-
1). Initially visited by Alan, the owner's father, who discussed the various options re panels and battery and based on the really helpful advice I decided to wait for the UK release of the Tesla Powerwall 3 this autumn.
2). Elizabeth and Cameron were my initial contacts who not only produced the design of my system but also checked its suitability with the roof designer of my new house. this really helped me to commit to the project.
3). Roof and panel installers Lewis and his partner Ruby couldn't have been more helpful during the roof work and they considered my concerns regarding the wind exposure and decided to increase the number of joist supports for the project.
4). Electrical and battery installers, Zakk and Dan, helpful and efficient pair of technicians whose only issue was having to check the Tesla hardware updates once the installation was completed well within the original timescale.
5). Thanks to Jack and his team for coordinating the whole project and reacting to adverse weather, timing and organising the scaffolders who were mindful of not damaging, plants, lawn and patio.
6). Finally the support of Neil Lawrence who has worked tirelessly to get our project through the National Grid minefield of approval of the installation and the issue of the Electricity export license was greatly appreciated. Really found his advice regarding the Tesla and new Electrical supplier, Octopus, apps to be invaluable.
Will certainty recommend GreenGenUK as a high class local PV and battery installer - thanks everyone.

Reply from GreenGenUK
Zack arrived on time and installed the…
Zack arrived on time and installed the battery without any issues until the commissioning. A few problems arose but Zack sorted them out and made sure our GivEnergy app was functioning. Workmanship was neat and tidy. Many thanks GreenGenUK.

Reply from GreenGenUK
Good experience of Heat Pump installation
We had a really good experience earlier in the year when GreenGen installed our solar panels and battery, and they returned in the autumn to install a Mitsubishi Ecodan Heat Pump. The company are very well organised and handled the Boiler Replacement Scheme grant funding on our behalf, and the process was smooth and efficient. All the staff we dealt with during surveys, quotations and installation were very helpful, and the plumbers and electricians were easy to have around the house. They introduced themselves on arrival and always kept us in the loop about the progress of the project, even staying late one evening to make sure that we had a supply of hot water over the weekend. The insulation team of Zack, Dan and Jack were very tidy in their work and cleared up at the end of every day. After the job was complete, we received all the relevant paperwork and documentation in good time. All together we had a very good experience from Greengen.

Reply from GreenGenUK
Great service - would recommend
I ended up with Greengen after getting quotes from another company who, after asking a few times, I found would not take credit cards. Which is a no for me after needing that security once before and not having it.
Greengen were brilliant post install and during the install. They managed to fit a powerwall 3 and solar panels, about 2 weeks after I had contacted them when I decided I needed to switch installer (I had had a quote from them for this system 6 months before). During the two weeks I upgraded panels and then asked for more to be fitted, and had technical questions re a future car charger. All were dealt with quickly and at one point Rob the MD called me, to explain a technicality, for about 30 mins.
The install was great with some awkward routing due to me living in an old farmhouse with the powerwall about 40m from the consumer unit. Despite their being easier routes which would have been less tidy/aesthetically pleasing they spent a long while getting through the loft and also changed the position (at their suggestion) of the gateway to a cupboard upstairs when it would have been easier, but messier, to install it under the consumer unit.
A couple of things went wrong during the install and they were back to sort one of them on the next working day (after storm Bert when they would have been very busy). Theres another small issue to sort and they are coming Thursday to do this. So technical after care has been great (I don't expect everything to be seemless but the marque of a good company is how they sort out things that go wrong)
I'd particularly like to mention Cameron who made my partner feel very relaxed with him in the house (who started a bit perturbed as she was recovering from an operation the day before). He was also asking her if there was anything he could do for her :) But also Ben, Treeve, Jack and Simon were all lovely and the short guest appearances from Zack, Dan and Kieron who were great also, Big team and as far as I am aware all in house, not contractors, which is a credit to the company.
The only things that let them down were the scaffolders. One of whom had a real attitude when I asked him not to walk on a plastic roof. Also the extremely slow response from sales after the install, when I was asking for an additional battery. A quick acknowledgement email would have saved me chasing!
Although a much bigger company than my original choice (made because they were recommended) but a similar price. Given how awkward the routing was I am pleased I went for them as they are still local but had the manpower that was needed.

Reply from GreenGenUK
Excellent service from Greengen
Throughout the whole process, from our initial enquiry to post installation support, Greengen staff have all been reliable, responsive, exceptionally helpful and very friendly. The planning and installation was very well managed and coordinated by Sean, and the team fitting the pump and radiators were very effectively led by George. All members of the installation team were hard working, efficient and communicated with us well. Our telephone queries were also responded to promptly and helpfully. We would not hesitate to recommend Greengen to anyone considering installing an air source heat pump.

Reply from GreenGenUK
Brilliant Company and engineer
Installation of batteries and car charger had a few hiccups but the engineer Jordan and his boss Andrew stayed the course to complete the job to our satisfaction. Jordan also helped us to get to grips with the software and app. Would recommend this company and looking to expand our setup of batteries. Thank you guys.

Reply from GreenGenUK
Air source heat pump service by…
Air source heat pump service by Alastair. Excellent and efficient service. Alastair also answered all my queries about the system, identified a couple of issues that require attention and put a clear plan in place. Thanks so much

Reply from GreenGenUK
GreenGenUK offers a reliable service
GreenGenUK offers a reliable service, having installed solar panels and an air source heat pump for me. The installation teams, including Ben, Bailey, Cameron, and more, are friendly and professional. The process, from initial contact to completion, was straightforward without any hard sell. While the teams worked efficiently, there were minor delays due to equipment availability. Overall, a satisfactory experience with knowledgeable staff helping along the way.

Reply from GreenGenUK
Craig and Archie did a great job
Craig and Archie did a great job. Craig explained everything that he was doing.

Reply from GreenGenUK
Alastair arrived on time
Alastair arrived on time, professionally assessed the problem and sorted it out.
Good job.

Reply from GreenGenUK
Our installation team was first class
Our installation team was first class, great service and friendly professionals. James was an extremely knowledgeable and helpful engineer.

Reply from GreenGenUK
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