Stellar energy project managed my Eco4 insulation, air source heat pump and battery installation. They were quick securing my grant funding. Each stage of the work was inspected and any snags were sor... See more
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Stellar Energy UK: Powering Homes, Empowering Communities At Stellar Energy UK, we believe energy should not only power homes, but also transform lives. As one of the UK’s leading renewable energy and retrofit specialists, our mission is simple yet powerful: to help homeowners and communities reduce their energy bills while contributing to a more sustainable planet. We work closely with trusted suppliers and energy companies including EON, OVO, Octopus Energy, and British Gas to deliver high-quality installations of solar panels, battery storage, heat pumps, insulation, and whole-house energy retrofits. Our expert teams are fully accredited and trained to the highest standards, ensuring every project meets strict compliance and safety regulations. From the initial consultation to installation and aftercare, we are dedicated to providing a seamless and professional customer experience. But what truly sets Stellar Energy UK apart is our heart for the community. We believe that business should be a force for good. That’s why we actively give back to the areas we serve. Stellar Energy proudly supports local charities, including Llanelli Mind and local disability sports teams, providing funding and resources that make a real difference in people’s lives. Whether it’s helping vulnerable households access grants to improve their home energy efficiency or sponsoring local grassroots initiatives, we are committed to empowering people as much as properties. When you choose Stellar Energy, you’re not just investing in your home’s energy future—you’re also supporting a company that believes in fairness, community, and environmental responsibility. Join thousands of satisfied customers who have experienced the Stellar difference. Lower your energy bills, reduce your carbon footprint, and help us build a brighter, greener future for everyone.
54 Stepney Street, SA15 3TG, United Kingdom
Replied to 75% of negative reviews
Typically replies within 24 hours
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I was very sceptical about using the ECO 3 scheme as I feared it was a scam and I would end up with a big bill or an unfinished or badly done job. However my fears have been proved to be utterly false. This company and all its contractors have been honest, committed and hard working and have made my home a lot more comfortable and I am very grateful to everyone involved .

Reply from Stellarenergy
Excellent service and really nice guy's could definitely recommend.

Reply from Stellarenergy
These boys are seriously good. If you want the best, use these, you won’t get better treatment and workmanship, and they leave everything scrupulously clean and tidy. You can’t go wrong with stellar energy.

Reply from Stellarenergy
Fantastic hard working guys very good at what they do and clean and tidy on completing the work highly recommended

Reply from Stellarenergy
Dewey and his team worked very efficiently and were considerate. Thank you.

Reply from Stellarenergy
Brilliant service, polite and happy. Pleased with the job done.

Reply from Stellarenergy
Brilliant company to deal with, explain everything really well. The work lads are a great bunch, they do an efficient clean work and they do a great job.

Reply from Stellarenergy
The whole process was fast and simple, the lads who came to do the work were quick and left no mess. Would recommend

Reply from Stellarenergy
Excellent service, very clean job and lovely team. Highly recommended

Reply from Stellarenergy
Fantastic service, both boys were efficient at what they did. Would recommend stellar energy

Reply from Stellarenergy
Stellarenergy organised an eco friendly grant funded improvements for my home (loft and wall insulation plus storage heaters). The workmen doing the work were very efficient and friendly. I am very happy with Simon (who took the lead) and the work completed.

Reply from Stellarenergy
Quick swift service, polite friendly boys. They were wearing all the correct PPE at all times throughout the job, thanks

Reply from Stellarenergy
Stellar were upgrading our loft insolation. I had a phone call in the morning to say they would be arriving earlier than arranged. The guys were friendly & completed their work quickly. They explained what they had done. They cleaned & hoovered the area before leaving.

Reply from Stellarenergy
Polite and friendly guys, job was done quickly and efficiently guys even cleaned up after themselves.

Reply from Stellarenergy
Not sure about the one star rating given by the other person?!? But the lads did good on my job. Not a nice job up there, not easy at all.
Cleaned after themselves too.
Many thanks, much appreciated!

Reply from Stellarenergy
Came today to do my loft it was left in a dreadful state where i needed a crawl board to even get into loft. They just throw my things like 2 Xmas trees and decorations where i have no hope of getting them. They placed up 3 notices on my loft to say i needed a broad yet they could not tell me this at the start or even when they finished it looked as it was done slap dash. not impressed in fact as i am old and have no help at all i think its very unfair. Since than i am pleased to say they have corrected my loft got my things within reach. So i have updated my review. They have also placed some wood for a walk though for me. so i thank them

Reply from Stellarenergy
Stellar energy acted quickly and efficiently to instal loft insulation and look into my other heating needs. Justin and his mate where polite and respectful at all times and worn there masks throughout the fitting. Really happy to be help by them and Stellar energy.

Reply from Stellarenergy
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