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
Company replied
While we don't verify specific claims because reviewers' opinions are their own, we may label reviews as "Verified" when we can confirm a business interaction took place. Read more
To protect platform integrity, every review on our platform—verified or not—is screened by our 24/7 automated software. This technology is designed to identify and remove content that breaches our guidelines, including reviews that are not based on a genuine experience. We recognise we may not catch everything, and you can flag anything you think we may have missed. Read more
Review summary
Created with AI, based on recent reviews
What people talk about most
Reviews shaping this summary
The loft insulation was handled by Dewey and his team, who were polite, efficient, and respectful of the house. They explained what they were doing and cleaned up afterwards. The home feels warmer alr... See more
Company replied
Company details
Written by the company
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.
Contact info
54 Stepney Street, SA15 3TG, United Kingdom
- 01554 788766
- customercare@stellarenergy.org
- stellarenergy.org
4.4
Excellent
228 reviews
Replied to 75% of negative reviews
Typically replies within 24 hours
How this company uses Trustpilot
See how their reviews and ratings are sourced, scored, and moderated.
Up to speck loft
Just had loft insulation done in my house by three young men Dewey, Nicky, and Jorden. They were very quick clean and knowledgeable. Would recommend this team.
February 2, 2021
Unprompted review
The team arrived prompt at the allotted…
The team arrived prompt at the allotted time, they were professional, knowledgeable and conscientious about the job.
Clean and tidy.
Well done.
January 29, 2021
Unprompted review
My mum had loft insulation put in today…
My mum had loft insulation put in today 28/1/21. Ken and Josh were polite, friendly and helpful. Ken explained everything to my mum and I nothing was to much trouble. I would highly recommend Stellar Energy 100%, Amazing guys!!!
January 28, 2021
Unprompted review
Loft Insulation
Had our loft insulation updated this morning, professionally done and very happy with the overall work!
January 28, 2021
Unprompted review
Great job done
Great job done, polite and now have a warm house! Thankyou very much.
January 28, 2021
Unprompted review
Reply from Stellarenergy
We installed loft insulation and a brand new boiler system at Anne Marie’s house. They had no loft insulation and only terrible electric portable panel heaters. The Landlord got the gas supply connected from the street and then we installed brand new radiators and a boiler.
Thank you for the kind words. Customer satisfaction is key to our success.
Dewey and the team very professional…
Dewey and the team very professional and excellent service, during these times at mo covid wise as well ,masks on etc very impressed would highly recommend to anyone
January 20, 2021
Unprompted review
Had a survey done beginning of December…
Had a survey done beginning of December and one week later loft insulation installed! Problem is I initially made contact regarding storage heaters, survey was done for this and grant approved and it still hasn’t been arranged! No contact made despite numerous emails to Ryan Stanton! Some contact would be good please. NOT great customer service!!
UPDATE!! So after this review they magically phoned and got us booked in. The night before they were due to be fitted the installer (self employed) phones me to warn me that apparently we have only been approved for 3 heaters despite needing 5, and that if he came he’d need to take all five older style heaters leaving us with only heating upstairs!
This was never communicated with us and now I cannot get hold of anyone again! Kamran has not returned my call! Absolutely disgusted with the customer service of this company!
UPDATE 2!!
How can my house be warmer and cheaper to run when the work hasn’t been carried out! I have now contacted another company to try and get them fitted.
January 16, 2021
Unprompted review
Reply from Stellarenergy
Hi Nicola
Unfortunately, Ryan has been in and out of the office in since December due to reasons relating to Covid 19. However, we have provided the initial part of the service for you. The second part of the service, that being storage heaters, will go ahead. I will see to that this week ahead. You will get a phone call Monday 18th January. We ask all clients to remain patient in these testing times. There is a lot that goes on behind the scenes in any company right now, and a lot of businesses have been adversely affected. I hope you can understand this of course? As we have mentioned above, you will get a call tomorrow. Is this acceptable to you? Sincerely, Simon of Stellar Energy UK
UPDATE ON SUNDAY 30 JAN 2021 - we fitted the loft insulation for you as promised. We always answer your calls and have done so since the start of the process Ms Hickton. The storage heaters are installed by another company. We are not the registered licensed installers of those. You are dealing with another company through a chap called Kamran. They are the ones that advise you on the upgrade of your heaters. If there is anything else we can help you with please let us know. Your home must be a lot warmer now than before. It must be cheaper to run and as promised, and we have fulfilled our part of the grant. Stellar Energy has great customer service and you can see this throughout our Trust Pilot reviews. If we can help you in any way please email us
customercare@stellarenergy.org
Sincerely
Simon
Stellar
Loft insulation
A quick, professional and polite service. They fitted the loft insulation and cleaned up behind themselves in about two hours. All done under the eco3 scheme. Would definitely recommend.
January 13, 2021
Unprompted review
Excellent service fast and polite…
Excellent service fast and polite advised on what needed doing got on with it with in a day of being told what was needed after the serva rang the day b4 to tell me when were coming and rang b4 they turned up got on with the job installing the insalation no fuss fast and with quality workmenship very tidy work and cleaed up after them self... thanks guys
January 12, 2021
Unprompted review
Great job done professional throughout…
Great job done professional throughout would definitely recommend! A**
December 17, 2020
Unprompted review
Brilliant company quick from phonecall…
Brilliant company quick from phonecall to installation. great modern energy saving heaters. Would reccomend.
December 16, 2020
Unprompted review
Reply from Stellarenergy
Glad to be of your service. Tell your friends and family and they can get the same for FREE!
Heating installation.
Good service from Simon and his team, very hardworking lads, polite and helpful and at all times covid safe. Our house now much more cosy and warm and very grateful to you all. Again many thanks. This would have been a 5 star rating but for a couple of minor problems which were successfully sorted by the team.
December 16, 2020
Unprompted review
Reply from Stellarenergy
Pam, Thanks for the great review. We really took a lot of pleasure making your home warmer and a cheaper place to heat! This scheme really is for people like you and your husband. We wish u both a merry Xmas.
Professional
Professional, polite and very tidy. Thank you for help and hard work boys. Highly recommend
December 12, 2020
Unprompted review
Reply from Stellarenergy
Thanks for the great review
Please Avoid!
I spent months going through the application, I had received the grant funding according to the company only for them to turn around and say I was no longer entitled without even giving a reason why. I asked for a call back for a further explanation but of course I haven't received one. Extremely disappointed
December 8, 2020
Unprompted review
Reply from Stellarenergy
Katrin, we are sorry to hear this. I will get a senior Manager to call you tomorrow and resolve this. Please look out for the phone call from 01554 788766
Updated 17th Jan 2021 - “Good morning Catrin, we still can’t find you on the system. We would like to rectify the above. Please ring us on the phone number so we can make you happy. How’s this sound?”
Sincerely
Simon - Stellar
Absolute con artists 😂
Absolute con artists 😂
Seemed very legit, had people come and access and even went as far as to provide loft insulation, I was told my application for an upgrade on my heaters had been approved so I just waited to hear back. After a couple of emails with no response and 3 weeks past, I rang them today for them to inform me that the rules have changed this week ahaha and that the application can’t go any further. To me it is highly likely that they are claiming the monies from the government but not carrying out the work.
December 3, 2020
Unprompted review
Reply from Stellarenergy
Hi Kellie
We can’t find you on our system. We are tried and tried to call all the Kellie’s in our database. How can we reach you?
I'm sorry for your feedback and will respond to you asap.
What is your full name and postcode as we can't see this on your review notice. We cant con anyone in this, it's a free product. We don't claim any funding until the job is installed so there is no con going on.
UPDATE REPLY 17 TH JAN 2021 - WE STILL HAVENT HEARD FROM YOU YET. WE DONT HAVE A KELLIE IN OUR SYSTEM. WE CANT CONTACT YOU BACK UNLESS YOU PHONE US OR REPLY TO THIS THREAD.
Sincerely
Simon - Stellar
UPDATE ON 21 APR - STILL NO REPLY FROM THE CLIENT SO WE CAN NOT HELP AND WE STILL DONT RIP PEOPLE OFF.
Brilliant service...
Fantastic service from Simon and the Team, had some problems on my end but they got them sorted for me and the whole process was great from start to finish. Many thanks guys.
November 27, 2020
Unprompted review
Reply from Stellarenergy
Thanks and Merry Xmas
Stay Safe
Tidy, quick job
Two lads came to put our insulation in this morning and 2 hours later they're away, insulation complete and my hallway hoovered.
Fantastic job and we look forward to a warmer house.
Very polite, quick and efficient boys
November 27, 2020
Unprompted review
Reply from Stellarenergy
Thanks and Merry Xmas
Stay Safe
Excellent work as They had to remove…
Excellent work as They had to remove old lagging that didn't conform, left me a bit of spare Lagg for my own use
They had to work around my rubbish in my attic.
November 13, 2020
Unprompted review
Reply from Stellarenergy
Thank you for these kind words. Much appreciated
Excellent and quick service -very…
Excellent and quick service -very pleased with service.
November 13, 2020
Unprompted review
Reply from Stellarenergy
Thank you for your review ;)
The Trustpilot Experience
Anyone can write a Trustpilot review. People who write reviews have ownership to edit or delete them at any time, and they’ll be displayed as long as an account is active.
Companies can ask for reviews via automatic invitations. Labeled Verified, they’re about genuine experiences.
Learn more about other kinds of reviews.
We use dedicated people and clever technology to safeguard our platform. Find out how we combat fake reviews.
Learn about Trustpilot’s review process.
Here are 8 tips for writing great reviews.
Verification can help ensure real people are writing the reviews you read on Trustpilot.
Offering incentives for reviews or asking for them selectively can bias the TrustScore, which goes against our guidelines.