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

5-star
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1-star

Replied to 75% of negative reviews

Typically replies within 24 hours

How this company uses Trustpilot

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Rated 5 out of 5 stars

Process went smoothly

Process went smoothly, with excellent staff from sales representatives to installation teams. Crew members were efficient, cleaned up thoroughly, and ensured everything worked perfectly. Andy, an electrician, stood out for his expertise in planning connection locations and routing, along with his friendly attitude, which was greatly appreciated.

31 October 2024
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Reply from Stellarenergy

Andy is a real team player - the teams are professional, clean and go that little extra to get things done properly.

Rated 5 out of 5 stars

Service provided was excellent

Service provided was excellent, with a quick and efficient process from start to finish. Seven panels and a battery were installed flawlessly. Highly recommended for anyone considering their services.

17 October 2024
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Reply from Stellarenergy

Mr Salvadore, bless you and than a so much

Rated 5 out of 5 stars

My panels

My panels, inverter, and battery were installed quickly. The process was efficient, and I’m very happy with the result. Well done to the installation team!

31 October 2024
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Reply from Stellarenergy

Thanks so much Gabriel, this review put a smile on our little faces

Rated 5 out of 5 stars

Hi really happy with all the work with…

Hi really happy with all the work with all rhe boys have done on my property very polite guys explained everything about work they were doing highly recomended 5 stars qualiry work thank you so much mathew jordan jenson many thanks again

19 November 2024
Unprompted review
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Reply from Stellarenergy

These chaps are awesome workers and they really do put in the extra mile to please our clients

Rated 5 out of 5 stars

Great Experience

Very friendly team carried out ventilation work inside my mother-in-laws house today. They were hardworking, reassuring and efficient and left the place spotless. Highly recommend them. Added bonus was a visit from their supervisor mid-morning to answer any questions we may have had. Very happy mother-in-law! Thank you.

11 November 2024
Unprompted review
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Reply from Stellarenergy

Amazing review thanks so much and means a lot

Rated 5 out of 5 stars

After thorough research and comparing…

After thorough research and comparing multiple quotes, I chose Stellar Energy as my primary provider, and it was an excellent decision. I have a large array installed on a south-facing roof with two batteries, allowing me to become a net energy exporter. I expect to break even within five years. Stellar Energy is truly one of the better companies in the industry.

18 October 2024
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Reply from Stellarenergy

Amazing words thanks so much

Rated 5 out of 5 stars

Every step of the process was superb

Every step of the process was superb, from initial inquiries about solar panels and purchasing to installation. A huge thanks to Ken for taking the time to explain how the system operates and for guiding me through the settings. I truly appreciate Stellar Energy’s exceptional service!

10 October 2024
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Reply from Stellarenergy

Thanks so much for the great review

Rated 5 out of 5 stars

We were very impressed with the service…

We were very impressed with the service from Stellar Energy. The team was knowledgeable and approachable, and we are extremely pleased with the system and the quality of the installation. The entire experience offered excellent quality and value.

13 September 2024
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Reply from Stellarenergy

Dear Mr. Miller

I wanted to personally reach out and extend our heartfelt thanks for taking the time to share your experience on Trustpilot. Your feedback is truly invaluable, and we’re thrilled to know that your experience with Stellar Energy has been a positive one.

Our mission is to make a meaningful difference through top-quality renewable energy solutions, and it’s incredibly rewarding to see that reflected in your review. Comments like yours not only inspire our team but also help other customers feel confident in choosing us.

Thank you once again for placing your trust in us. We look forward to continuing to serve you and our community with dedication and care.

Warmest regards,
Stellar Energy UK

Rated 5 out of 5 stars

The Stellar Energy team was great to…

The Stellar Energy team was great to work with. They covered every detail during the initial consultation and kept us informed throughout the process. The work was done to a high standard, with everything left neat and tidy. I have no hesitation in recommending them for solar and EV charger installations.

18 September 2024
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Reply from Stellarenergy

Mr Davies
Thank you for taking the time to share your experience on Trustpilot. We’re delighted to hear that you had a positive experience with Stellar Energy, and your feedback means a lot to us.

Your support inspires our team and helps others feel confident in choosing us. We look forward to continuing to serve you with dedication.

Warm regards,
Stellar Energy UK

Rated 5 out of 5 stars

Excellent PV installer

Ken was highly professional, punctual, and straightforward. The PV system was installed on time without any issues, even with the terrible weather, and it is performing beyond our expectations. His quote was the best among those I received, and I am pleased to give a five-star review

3 October 2024
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Reply from Stellarenergy



Thank you for your Trustpilot review. We’re thrilled to hear you had a positive experience with Stellar Energy—your feedback truly means a lot to us.

Your support motivates us, and we’re grateful to have earned your trust. We look forward to serving you in the future.

Best regards,
Stellar Energy UK

Rated 5 out of 5 stars

This has been an exciting new…

This has been an exciting new experience for us. The team installing the system is both professional and clearly skilled in their work. We highly recommend them, as every question we had was answered immediately. Well done to all involved!

7 October 2024
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Reply from Stellarenergy

Dear Mr. Bates

Thank you so much for sharing your experience on Trustpilot. It means a lot to know you’re happy with Stellar Energy’s service.

We’re here to make a difference, and feedback like yours keeps us motivated and proud of what we do. If there’s anything else we can do for you, please don’t hesitate to reach out.

Warm regards,
The Stellar Energy Team

Rated 5 out of 5 stars

Stellar Energy provided excellent…

Stellar Energy provided excellent support throughout the entire process, addressing all my questions and offering tailored advice to create a solution that meets my specific needs. This setup enables me to work from home with lower energy bills and added protection during power outages.
Installation was done by high qualified professionals done in time quick and tidy without any hassle.

30 September 2024
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Reply from Stellarenergy

Thank you for taking the time to leave a review on Trustpilot. Hearing that you had a positive experience with Stellar Energy means so much to us.

Our team is passionate about delivering quality renewable energy solutions that truly benefit our customers, and it’s incredibly rewarding to know we achieved that for you. Your feedback doesn’t just motivate us—it also helps other people feel confident in choosing us, and that’s invaluable.

If there’s ever anything more we can do to support your energy needs, please feel free to reach out. We’re here for you and are proud to be part of your journey towards a more sustainable future.

Warmest regards,
The Stellar Energy Team

Rated 5 out of 5 stars

Outstanding Service and Exceptional Results

I had a fantastic experience with Stellar Energy from start to finish. Their team was incredibly knowledgeable and guided me through each step of the process with patience and expertise. They provided a clear breakdown of costs and potential savings, which helped me feel confident in making the investment.
Installation was smooth and professional, with the team arriving on time and leaving the site spotless. The system itself has performed beyond my expectations, significantly lowering my energy bills while contributing to a greener environment. The quality of the equipment and attention to detail truly show Stellar Energy’s commitment to excellence.
If you're looking for a trustworthy company that prioritizes both customer service and quality results, I highly recommend Stellar Energy!

19 September 2024
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Reply from Stellarenergy

Dear Mr Owen

Thank you so much for sharing your experience with Stellar Energy! We’re thrilled to hear that our team’s guidance, clarity on costs, and commitment to quality made you feel confident in your decision.

It’s incredibly rewarding to know that your system is exceeding expectations, lowering your energy bills, and contributing to a greener environment. Your kind words about our professionalism and attention to detail mean a lot to us and inspire our team to continue delivering excellence.

We truly appreciate your recommendation, and if there’s ever anything more we can do to support you, please don’t hesitate to reach out. We’re here to help!

Warm regards,
The Stellar Energy Team

Rated 2 out of 5 stars

Please research other companies…

Please research other companies particularly if you are vulnerable-with your health - the process took 5 months instead of the promised 3 weeks - stellar energy have apologised and blamed staff change, however i wish i had known it would take so long i would have chosen a different provider- the work when finally complete is of good quality - stellar energy have asked me to consider more than 2 stars below - sorry stellar but i used 5 days annual leave waiting for intallers that never turned up when head office said they would - and had to live in a dusty house and bedroom waiting weeks for work to be done - it was left unsafe for my disabled hubby too so i think 2 stars are justified-

18 October 2024
Unprompted review
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Reply from Stellarenergy

Dear Mrs Baker
Appreciate your feedback. There was some set backs as with anything in life. The review has made us tighten up on some areas of the business so we take this as a way to improve our services. Unfortunately, unlike a lot of the installs we perform, yours had a few problems. Nothing is perfect I know, but we will improve with these comments in mind.
The install didn’t take 5 months for all other customers that are reading this review, it was the initial contact to completion.
The work quality is good you say.
Do you think that a two star may be a little low considering all is well that ends well?
Kind regards
Stellar Energy.

Rated 5 out of 5 stars

The service was prompt and precise

The service was prompt and precise. The site inspection and pre-work were thorough. The panels were installed with care but quickly, and the indoor setup was done meticulously and professionally. Everything worked right away, and the system was explained in a way that was easy to understand. Overall, I recommend the company and their product.

24 September 2024
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Reply from Stellarenergy

Thank You for Your Feedback!

Dear Ted

We’re so grateful for your review and thrilled to hear about your positive experience with Stellar Energy! It’s wonderful to know that our team’s thoroughness, efficiency, and clear communication made your installation smooth and straightforward.

Your recommendation means a lot to us, and we’re delighted that you’re pleased with both the product and service. If there’s anything else we can assist with in the future, please don’t hesitate to reach out.

Warm regards,
The Stellar Energy Team

Rated 5 out of 5 stars

They arrived right on time

They arrived right on time, and everyone I spoke with was friendly, polite, and efficient. They installed a clean and tidy 5-panel, 1kWh system and finished before lunchtime. Very professional work, and I’m happy to recommend them!

1 October 2024
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Reply from Stellarenergy

Thanks so much! We take pride in everything we do!

Rated 5 out of 5 stars

From my first meeting with the salesman…

From my first meeting with the salesman to the team that installed the panels and the electricians who handled the final wiring, I dealt with five polite and professional individuals. The work was completed, and everything was left clean and tidy. A truly professional team from a professional company!

30 September 2024
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Reply from Stellarenergy

Hi Cole

Thank you for sharing your experience! We’re delighted to know that you found our service prompt and precise and that the installation was handled with care and professionalism.

It’s always our goal to make the process as smooth and understandable as possible, so it’s great to hear that everything worked seamlessly from the start and that our team’s explanation made things clear.

We truly appreciate your recommendation, and we’re here for any questions or support you might need in the future.

Best regards,
The Stellar Energy Team

Rated 5 out of 5 stars

The team that installed my solar panels was quiet

The team that installed my solar panels was quiet, efficient, and didn’t disrupt anything. After drilling, they left no mess, and all the equipment was well placed without the need for any visible cable covers. This is the second house where I've had Stellar Energy install a system. I was very happy with the first one, so I went back to them for the second. Great company with excellent products and service!

30 September 2024
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Reply from Stellarenergy

Thank You for Your Wonderful Feedback!

Dear Mr Rogers

Thank you so much for your kind words and for trusting Stellar Energy once again with your solar installation. We’re thrilled to hear that our team’s quiet, efficient approach and attention to detail made for a smooth and seamless experience at your home.

It’s incredibly rewarding to know that you were pleased with both installations and chose us again for your second system. Your satisfaction is the best compliment we could receive, and we’re grateful for your continued support.

If there’s ever anything more we can do for you, please don’t hesitate to reach out. We’re here to help!

Warm regards,
The Stellar Energy Team

Rated 5 out of 5 stars

The team showed up early and worked a…

The team showed up early and worked a long day with minimal disruption. Ali was very helpful, answering all my questions and giving useful tips on using the solar PV system. George, who did the survey, was also very thorough and supportive. I’m really glad I chose Stellar Energy!

27 September 2024
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Reply from Stellarenergy

Thank you for taking the time to share your experience with us! We’re delighted to hear that Ali and George provided helpful guidance and support throughout the process. It’s wonderful to know that our team’s dedication and hard work made for a smooth and minimally disruptive installation.

We’re so glad you chose Stellar Energy, and your satisfaction means the world to us. If you have any further questions or need assistance, please don’t hesitate to reach out—we’re always here to help.

Warm regards,
The Stellar Energy Team

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