Expert engineers
in renewable energy
Driving sustainable solutions through innovative design, installation and support.
Boiler Care
Reliable installations, servicing and repairs to keep your boiler running safely and efficiently.
Heat Pumps
Efficient, eco-friendly heating solutions that keep your home comfortable all year round.
Save £7,500 with the Boiler Upgrade Scheme
As part of our installation service, we will check if you’re eligible to receive a £7,500 grant towards your air source heat pump through the government Boiler Upgrade Scheme. Contact us to learn more!
Energy-Efficient Solutions
Discover our range of low-carbon, cost-effective systems designed to make your home more efficient, comfortable and future-ready.
Boiler
Installation
Heat
Pumps
Solar
Installation
Service
Plans
EV Charger
Installation
Air
Conditioning
Contact us for a free consultation
If you’re looking for a reliable and professional renewable energy solution, give us a call on 0330 043 3743 or fill out our contact form – and a member of our team will be in touch shortly.
What our clients say...
EXCELLENT Based on 38 reviews James Brookes2025-04-17Trustindex verifies that the original source of the review is Google. I couldn’t be happier with the heat pump installation completed by James and the team at Green Box Energy. From the initial consultation to the final handover, James was professional, knowledgeable, and a pleasure to deal with. He took the time to explain everything clearly, answered all my questions, and ensured the entire process ran smoothly. The installation itself was done to a very high standard — neat, efficient, and completed on schedule. It’s clear James takes real pride in his work, and it shows in the results. The new heat pump system is working perfectly and has made a noticeable difference in comfort and energy efficiency. I highly recommend Jamie and Green Box Energy to anyone considering a heat pump installation. Outstanding service from start to finish! charli graham2025-04-17Trustindex verifies that the original source of the review is Google. Excellent customer service and got the job done to a high standard highly recommend Jamie Cruickshank2025-04-17Trustindex verifies that the original source of the review is Google. Great service, quick and professional Sean Savage2025-04-05Trustindex verifies that the original source of the review is Google. Top professionals! James provided great advice and was conveniently able to provide me with a very reasonable quote via FaceTime as I last minute had to leave the property just before he was due to arrive. Jordan did a fantastic job of fitting a radiator in a work-in-progress utility room. He did the job in a single day and was extremely thorough in checking the central heating was all working properly before he left. Very neat, tidy and no mess at all. Also great communication and punctual too! Really nice not to have to be constantly chasing and ringing all the time to get them to either start, or come and finish a job they only half finished, so I very much recommend these guys, thank you both! Christine Gordon2024-11-07Trustindex verifies that the original source of the review is Google. Green Box replaced the pipe work in our house to enable the Heat Pump to work to it full potential. They were professional, considerate throughout the time they spent in our home. They talked us through everything they were doing and clean up after themselves. I would recommend Green Box Energy LTD to everyone who is in need of Plumbing, heating and I hope to have them service my heat pump in the near future. The cost of the work was pretty good. Gold stars avinder gill2024-10-27Trustindex verifies that the original source of the review is Google. Just had a new boiler installed by Green Box Energy. They were very good value and did a fantastic job. Would recommemend these guys. This is the third job they have completed for me. Always v good. Alex Read2024-10-25Trustindex verifies that the original source of the review is Google. New boiler relocated and 7 radiators fitted with remedial pipework. All installed to the highest standard and not a single issue throughout the process. James and Jordan were extremely accomadting from the large work carried out to the small details. Fast, precise and friendly too. Would absolutely recommend! david venn2024-09-13Trustindex verifies that the original source of the review is Google. James fitted a heat pump and did an amazing job. He was very polite and fast working. Excellent job and so happy to receive a £7.5k rebate on the pump. Sam Booker2024-08-09Trustindex verifies that the original source of the review is Google. Great service from start to finish! Highly recommend.Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more