Stellarenergy Reviews 228

TrustScore 4.5 out of 5

4.4

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Review summary

Created with AI, based on recent reviews

Considering 38 reviews, reviewers overwhelmingly had a great experience with this company. Customers consistently praise the excellent service and the helpful, professional staff. Many people highlight the seamless process and efficient user experience, noting that the teams worked fast and were respectful. Reviewers also appreciate the clear explanations and prompt updates provided throughout their interactions. However, some people were dissatisfied with the customer service and response times, mentioning instances of being ignored after initial contact and receiving delayed or templated communications. These customers reported frustration with not receiving timely updates or clear explanations regarding their grant applications, leading to wasted time and a lack of clarity.

What people talk about most

Service

Reviewers mention positive feedback about service, highlighting the professionalism and efficiency of the... See more

Staff

Clients share positive opinions on staff. Customers consistently praise the politeness, efficiency, and... See more

Customer service

Users describe ambiguous interactions with customer service. While some customers, like those who dealt with... See more

Response time

Customers had ambiguous experiences with response times. Some reviewers praised quick responses, with agents... See more

User experience

Reviewers highlight positive aspects of user experience. Customers consistently report a smooth and seamless... See more

Reviews shaping this summary

Rated 5 out of 5 stars

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

Rated 5 out of 5 stars

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

  1. Boiler and Heating Service
  2. Insulation Contractor

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

4.4

Excellent

TrustScore 4.5 out of 5

228 reviews

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1-star

Replied to 75% of negative reviews

Typically replies within 24 hours

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Rated 5 out of 5 stars

We were delighted with Stellar Energy

We were delighted with the experience that we had with my mother’s solar/heating installation; all the people that we dealt with at all levels of the project were fantastic, and particularly respectful and lovely with my elderly mother. Ryan from Stellar has been very approachable and understanding throughout.
The house is now incredibly well insulated, very warm and hopefully the solar energy will mean cheaper bills.
What a fantastic scheme, installed by a superb company. Cannot recommend this enough!

September 25, 2023
Unprompted review
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Reply from Stellarenergy

Thanks for the true and amazing review

Rated 5 out of 5 stars

They took on all the stress, so we don’t have to

Our contact person Simon and his team made what is surely a complex process really smooth.
We are extremely grateful to Stellarenergy and all their work, we now have a very efficient and high-tech central heating system our friends, neighbours and family can rightly be jealous of!
I suspect they have many hoops to jump through in their work in the bureaucratic side of things, but they took any and all stress onto themselves and made a buffer so we as the customer received none of it, for which we were also very grateful.
Top marks Stellar Energy.

March 31, 2023
Unprompted review
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Reply from Stellarenergy

Thanks for the true and amazing review

Rated 5 out of 5 stars

Great service, highly recommended!

Stellar Energy were incredibly helpful in understanding the insulation potential of my property as well as air source heat pump technology. Unfortunately I was unable to make full use of the grants available so haven’t proceeded but I would recommend Stellar Energy to anyone looking in to home energy and efficiencies. David demonstrated considerable knowledge, helped me understand my options supported my decision.

November 25, 2022
Unprompted review
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Reply from Stellarenergy

Thanks for the true and amazing review

Rated 5 out of 5 stars

Exemplary - Highly recommended

Very recently, within the last two weeks, four members of staff employed by Stella Energy UK Ltd, have very carefully installed a considerable
thickness of insulation in my friend's roof and have also filled the inside cavities of the external walls of his house. My friend and I would like to thank all the staff concerned for their considerable expertise in carrying out this work, which was done with the creation of very little dust, which was a great relief to my friend as he suffers from Asthma. I would also like to make the comment that the team carrying out the boring of the holes through the external walls,
did a particularly fine job in re-covering the holes after the cavity insulation had been inserted. Such was their expertise in doing this, that it is now almost impossible to see where the original holes were
made in the brickwork. My friend was particularly pleased about this, as he was with the entire carrying out of the work, which was done very speedily
and with great professionalism.

From my own perspective, the communication with Stellar Energy UK was first-class and the gentleman that dealt with me was first class, being very knowledgeable, very professional, very efficient, and was somebody that was very easy to deal with. Thank you.

November 3, 2022
Unprompted review
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Reply from Stellarenergy

Thanks for the true and amazing review

Rated 5 out of 5 stars

Stellar energy have been brilliant

Stellar energy have been brilliant, they made the whole process of having my home insulated and central heating put in, so easy. Great communication and quick and efficient at doing the work. I am confident that my bungalow will be a lot more economical to keep warm this year.

August 17, 2022
Unprompted review
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Reply from Stellarenergy

Thanks for the true and amazing review

Rated 5 out of 5 stars

Stellar Energy were very professional

Stellar Energy were very professional. Great communication throughout and did a great job within a very good timescale. Would definitely recommend. Thank you again for the loft insulation & extractor fans - 😁👍

July 31, 2022
Unprompted review
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Reply from Stellarenergy

Thanks for the true and amazing review

Rated 1 out of 5 stars

Continuation of Complaint

Further to our earlier comments we would respectfully remind Stellar that they had already agreed to do the work if we made a £500 contribution - to which we agreed. We were told by two officials (Matthew Perrott-email Dec 20th 2020 and by Stephen Robbshaw-email July 19th 2021 that the company that the work would be done.
We are not prepared to keep arguing this point as we get nowhere with Stellar.
Instead we will endeavour, once again, to get full exposure of this of this saga through the national press.
Ken and Dianne Hyslop

April 6, 2022
Unprompted review
Rated 4 out of 5 stars

Stellar Energy have been a great…

Stellar Energy have been a great company to deal with. They have responded to all my communications and expects all their outsource work force to complete work to a high standard. The only issue is the time it takes for grant award from local Council - mine was particularly slow! Cavity wall was done well but I did not qualify for further grants sadly!

March 21, 2022
Unprompted review
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Reply from Stellarenergy

Thanks for the true and amazing review

Rated 5 out of 5 stars

Very good service

Very good service
Lovely people whos working with them
But im still waiting to hear about my new boiler which i was told i could have before the winter

March 17, 2022
Unprompted review
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Reply from Stellarenergy

Thanks for the true and amazing review

Rated 5 out of 5 stars

I am over the moon with Stellar energy.

I am over the moon with Stellar energy.
What an amazing journey.
Their office staff are very professional and thorough, the Surveyors are so polite and friendly, the installers are so respectful of peoples privacy and homes, and the quality of workmanship is second to none.
I had big concerns about these grants before I engaged with Stellar, but I have to say, they are a credit to the ECO scheme.
I would highly recommend them to anyone considering taking advantage of the ECO grants.
10/10 Bravo Stellar

March 17, 2022
Unprompted review
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Reply from Stellarenergy

Thanks for the true and amazing review

Rated 5 out of 5 stars

Brilliant company

Brilliant company! We applied for an LPG heating system through the Government grant scheme. I was convinced it wasn’t going to happen for us, but Stellar guided us through the whole process and we now have an excellent heating and hot water system, plus wall and loft insulation we weren’t expecting!

Each of the contractors they sent were spot on and very professional from start to finish.

Big thanks to Stellar Energy.

January 17, 2022
Unprompted review
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Reply from Stellarenergy

Glad to be of your service Mr Gordon. Please tell your friends, family and neighbours and we can help them too.

Rated 1 out of 5 stars

Booked an engineer to attend for 10am…

Booked an engineer to attend for 10am made clear that the house is 5500 sq feet, so would need most of day, house is in conservation area, confirmed call the day before an hour later to attend at 11am, engineer turned up at 1pm after me calling the office, stating he would finish around 10pm if he had started it then, terrible customer service, will give the business to someone else! Your right I did go out it was my husbands 50th birthday and after waiting in most of the day we decided to go out, I would rather freeze than use your company so please stop calling me, I have asked nicely twice, you are breaking GDPR rules! I have asked you to delete my details and STOP calling me, I am a nurse in the NHS and don’t have the time or inclination to answer calls at work from Ashley! Threaten me again and I will seek legal advice, with your breach in GDPR and slander allegation, I have no reason to lie do I? I wanted to have YOUR company come to my home YOU messed me around… my review is accurate. Funny how you have so many bad reviews on here is everyone lying?????

November 18, 2021
Unprompted review
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Reply from Stellarenergy

Hi
We offered to do the survey on the day for you Mrs Gee but you didn’t want to have it done. Our recent phone calls are to rebook you in. It is very very unfair and slandering to give us a 1 star when we are rated GREAT on this website. This website is for fair and honest reviews not for people that haven’t even had anything installed. For people reading this review, look at the other reviews from actual customers.
Many thanks
Updated 22 Jan 2022
We have a 75% great review rating. The people that have left a negative reviews haven’t had any service with us. Therefore, they haven’t gone through the whole process. The clients that complain are the ones that don’t qualify for the grant and then leave negative comments. We turned up to this ladies’ property and they turned us away. We offered to go back and they refused. You are in a conservation area and the grant will be very difficult for you to apply for. You have to go through the local planning department and we were willing to put in the extra work. It’s going to be tough for you to find another company that will do that. We were willing to do that for you. We are a very good company and our overall rating proves that.

Rated 5 out of 5 stars

Efficient and painless

I had work done today by Dewey and Curtis. It was definitely a five star experience. They worked quickly and efficiently, cleared up all the mess after themselves and were cheerful and friendly. Well done boys!

November 17, 2021
Unprompted review
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Reply from Stellarenergy

Thanks for the nice review.

Rated 5 out of 5 stars

Highly recommend !!

We would highly recommend this company.very professional from start to finish!Scott and Nicky were the two guys doing our loft.They arrived on time ,and got on with the job.They informed us all the way through ,on what they were doing,and both were very polite and helpful.A pleasure to have such nice guys in our home doing good work!

November 11, 2021
Unprompted review
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Reply from Stellarenergy

Your kindness means a lot. Glad to be of your service

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