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Trusted Traders

GreenGen UK Limited

Logo on white
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
Profile thumb greengen logo strap


12 Reviews


GreenGenUK is one of Cornwall's leading providers of renewable solutions.

Opened in 2011, GreenGen has built a reputation for providing high-quality, bespoke installations that have been tailored to meet the demands of both domestic and commercial customers.

MCS approved in all the technologies we offer, our customers are guaranteed of quality and all installations eligible for government incentives.

We install and maintain all of the following renewable technologies:

- Solar PV (photovoltaic)
- Battery Storage
- Solar Thermal
- Air Source Heat Pumps
- Ground Source Heat Pumps
- Biomass Boilers

In addition, we are able to offer plumbing and electrical work to homes and business throughout Cornwall, Devon and Somerset.

We offer free site assessments, surveys and guidance to all customers in the South West.

What we do

  • Renewable energy

    • Air source heat pumps
    • Ground source heat pumps
    • Solar panels
    • Biomass
    • Solar water heating
  • Plumbers

    • Emergency plumbing services
    • Unvented cylinder installation and maintenance
    • Water softener installation and maintenance
  • Electricians

    • Electrical testing services
    • Electrical emergency services
    • Electrical installations
  • Heating contractors

    • Central heating systems (installation and servicing)
  • Boiler, central heating and gas engineers

    • Radiators and central heating
    • Underfloor heating
  • Lighting contractors

    • LED lighting
    • Lighting LED upgrades
  • Smart Homes

    • Automated heating and air conditioning
    • Home automation

Customer reviews

12 reviews
Customer Service
Sort by
Prompt, professional and efficient service
Customer Service
GreenGen installed a air source heat pump. This was completed to the timetable they gave us. Very helpful fitters who were very tidy and the sales/office staff we have found also helpful with RHI payments. Completely satisfied.
Customer in Cornwall04/08/2019
100% satisfied.
Customer Service
Following a quote from a 'dodgy' company, our experience of GreenGen UK left us feeling 100% satisfied. From the initial meeting to quote for an Air Source Heat Pump, through ensuring correct specification, installation and follow-up, everyone we have met from GreenGen UK have proven to be very professional. They answered all of our questions, both technical and with regards to aesthetics (it has to look good!!), leaving us in no doubt as to what they were doing, the benefits of the installation and even dealt with the RHI on out behalf effectively, efficiently and in a timely manner . The quote was easy to understand, laid out clearly and concisely. The quoted costs were adhered to throughout and final payment not taken until we were satisfied and even given a week to ensure we were more than happy. The work was carried out by a very experienced team who were almost OCD in their attention to detail - it is a work of art!! In addition to this they were receptive to our thoughts and any concerns we may have had during the course of the installation. All in all the final part of our transition from fossil fuels (already solar panel/battery) went smoother than we could fairly have expected and the cost was perfectly reasonable. Everyone we dealt with on behalf of Greengen UK was a pleasure to business with.
Customer in Cornwall01/07/2019
Solar PV installation
Customer Service
We had several quotes for a solar PV installation from local companies and companies further afield. GreenGenUK were well informed and used their knowledge well in guiding us on our installation. They bettered previous quotes on a like for like basis and always added value. Having decided to use GreenGenUK for our installation we found dealing with the office team and the installing team to be not only efficient but also pleasant. The timetable set out at the beginning of the process was the timetable that was followed. After the installation GreenGenUK dealt with our FIT application and have followed up with courtesy calls to check how things are going. We are more than happy with the service provided and would not hesitate to recommend GreenGenUK.
Customer in Cornwall28/01/2019
Air to Air Heat Pump
Customer Service
My Air to Air Heat Pump is doing what Greengen said on the box. It is economic, is quicker to heat my rooms and keeps me warmer than my previous system. Installation was easy and efficient with no disruptions. Thank you all.
Customer in Cornwall21/12/2018
Excellent, Efficient Job
Customer Service
They knew we were struggling with no hot showers or heating. brought the job forward and worked a weekend to get us hot water. I am impressed.
David, Cornwall19/12/2017
Excellent, professional 100%
Customer Service
We are very happy with all aspects of the work. Very good service, excellent workmanship! Would highly recommend GreenGen to everyone. Top class!
Mrs Parkinson29/09/2017
Highly Recommended
Customer Service
GreenGen have done an excellent job for us giving thorough and detailed technical advice without high pressure tasks. They employed a high standard of friendly craftsmen who persevered to overcome any problems they encountered. Our order was started on time and completed.
How did we ever manage without an Air Source Heat Pump?
Customer Service
From survey through quote and into installation we have been very impressed with GreenGen and the ASHP system. The plumbers that came to us were knowledgeable and worked cleanly and efficiently despite several challenges outside their control. We now have a full handover pack and service plan and are benefitting from both regular and reliable hot water and heating, as required, plus saving money on our fuel costs. Would recommend to anyone in this area
Vanessa Tyler26/07/2017
Excellent project
Customer Service
A professional job from survey, receiving quotes ,right through to installation .Everyone was very approachable and helpful i had plenty of questions which were answered in a efficient manner.The installation was done in a day with little disruption and in a clean and tidy manner with all rubbish removed.A job well done!
First class professionals
Customer Service
We chose this company because: 1) conveyed expertise in solar & renewable energy 2) md and his technical staff gave me confidence 3) local, ongoing relationship 4) High quality product on time, and efficiently installed
Ian, Cornwall01/07/2017