Stellar Insulation Ltd Reviews 77

TrustScore 4.5 out of 5

4.6

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Review summary

Created with AI, based on recent reviews

Looking at 42 reviews, reviewers overwhelmingly had a great experience with this company. Customers consistently praise the staff for their professionalism, efficiency, and friendly demeanor, often highlighting their excellent communication and respect for property. Many people are very satisfied with the high quality of the service and the materials used, noting that the work is done flawlessly and efficiently. Reviewers frequently mention that the teams are tidy, clean up thoroughly after completing the job, and often finish faster than expected. However, some customers also noted issues with the administrative team, describing them as unhelpful. A few other people also felt that the contractors sent out were not always capable of performing their jobs, leading to dissatisfaction with the service provided.

What people talk about most

Staff

Clients share positive opinions on staff. Customers consistently praise the staff for being efficient,... See more

Service

People report positive experiences with service. Customers consistently praise the professionalism,... See more

Quality

Reviewers highlight positive aspects of quality. Customers consistently praise the excellent workmanship,... See more

Reviews shaping this summary

Rated 5 out of 5 stars

I had my old storage heaters replaced with new, efficient ones and also had solar panels installed. From start to finish, the service was fantastic. Sarah in the admin team was amazing she kept me upd... See more

Rated 5 out of 5 stars

Stellar Insulation installed new radiators, water tank, heat source pump, solar panels and loft insulation. Very professional from the survey to completion. The team on the job were very polite and t... See more

Rated 5 out of 5 stars

The guys turned up on time, and started work straight away. Muhammad liaised with ME on all decision-making and any problems we had were quickly sorted out. The guys worked solidly and tidied up at... See more

Rated 5 out of 5 stars

The team were highly respectful and professional totally knew what they were doing and were confident in their tasks . They cleaned up the work area every day after work and kept everything tidy and r... See more


Company details

  1. Heating Contractor

Written by the company

Stellar Insulation Ltd is UK-based energy company. We are an end-to-end company, meaning there is no third party involved. You can be rest assured that you will be dealing with highly trained professionals every step of the way. We are expert in providing free boilers, heat pumps, solar panels, and home insulation to eligible customers under the government’s ECO4 scheme. We have a team of highly skilled and experienced professionals who are committed to delivering excellent services and customer satisfaction. With a focus on quality workmanship, safety, and sustainability, Stellar Insulation Ltd ensures that each project is completed on time and to the highest standards. Take advantage of the ECO4 scheme and see if you are eligible for a free boiler grant.


Contact info

4.6

Excellent

TrustScore 4.5 out of 5

77 reviews

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Replied to 33% of negative reviews

Typically replies within 24 hours

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Rated 5 out of 5 stars

Outstanding customer service

From the initial inspection visit, throughout the installation, to the sign-off, the level of professionalism from Stellar was exemplary.
Dimitris explained the process of installing the heat pump and the solar panels very clearly and concisely.
His respect for the property and his courtesy were much appreciated.
Based on my experience, l would have no hesitation in recommending Stellar.

June 6, 2025
Unprompted review
Rated 5 out of 5 stars

I would highly recommend this company

I would highly recommend this company. I had loft insulation done, and a new boiler. They were efficient, clean, and polite. They explained everything to me, and I know there is ongoing support if I need it in future. So thank you to this company and their workforce.

April 10, 2025
Unprompted review
Rated 5 out of 5 stars

They was very good they explained…

They was very good they explained everything, they was very polite and respectful, they are very good workers I had a hot air heating system they took it out and replaced with a new boiler and radiators system I’m very very happy with there work it only took them 3 days from start to finish

March 12, 2025
Unprompted review
Rated 5 out of 5 stars

Dumitri and his assistant did a…

Dumitri and his assistant did a fantastic job installing our heat pump, radiators, and solar panels. Their work ethic was outstanding—they worked incredibly hard, paying close attention to accuracy and perfection, all while demonstrating great patience. They provided friendly customer service and went the extra mile to ensure the best possible results. Highly recommended for their professionalism and dedication!

October 30, 2024
Unprompted review
Rated 5 out of 5 stars

BRILLIANT INSTALLER

Hello All, STELLAR INSULATION Ltd installed a boiler in my property in Feburary 2024 on a Government Scheme.

The whole job from beginning to end was handled with excellent professionalism and dedication. I suffer from a Mental Health Condition and the anxiety/panic and sickness I felt on allowing complete strangers to come into the property and install something so important for the household went through the roof.

I was amazed at the kindness, understand, assurance, humbleness and care that was shown by the whole team of STELLAR INSULATIONS Ltd by accepting my request to send the engineers like Pablo with his team to answer some of the questions in my head and reassuring me that the whole installation will be looked after with utmost care and up to current standards and I will be an integral part of making all the decisions. Honestly knowing that took so much stress of my shoulders.

I congratulate the whole team including Pablo/Baajo and one more who came installed the boiler and also the insulation in the Loft with care and the according to the current Government Standards. I also thank the STELLAR INSULATIONS Ltd Team in the office for EXCELLENT
Co-ordination with team on the ground.

I would RECOMMEND Stellar Insulations Ltd to anyone who is looking for a professional reliable caring understanding Installation Company for their Job.

Thank you so much Stellar Insulations Ltd.
MOHNI

March 1, 2024
Unprompted review
Rated 5 out of 5 stars

Great customer service

The service we was given was 10/10 and the job was so professional and the guys who did the work were very polite and friendly on both days.

I can’t fault anything at all but can 100 percent say that we are very happy and satisfied with everything.

We will recommend stellar insulation to our family and friends in the future.

Thanks again for everything the team done for us.

April 24, 2024
Unprompted review
Rated 5 out of 5 stars

Fantastic work

Fantastic work

I had Pablo and his team in yesterday for a boiler installation and I was very impressed.
I would highly recommend them, an easy process from start to finish.

April 22, 2024
Unprompted review
Rated 5 out of 5 stars

Very impressed

Very impressed. From the survey to Pavlos and the team installing the new boiler and radiator sensors, everything was on time and professional. Minimum disruption and work done in a day. Clean and tidy too. Considerate on the impact of the work they were doing. Very pleased with the results.

March 1, 2024
Unprompted review
Rated 5 out of 5 stars

Excellent work

I had a very old boiler which finally gave out. The guys came over within a couple of days to install a new boiler, roof insulation and other a lot of other related work. Excellent and very speedy work was completed in two days! Highly recommended these guys!

March 3, 2024
Unprompted review
Rated 5 out of 5 stars

Work was arranged really quickly and…

Work was arranged really quickly and without any hassle, less that a week between my first enquiry and contractors completing the first part of the work. I was kept up to date and they communicated with me throughout. My house was left clean and tidy and the job was completed to a great standard. I’m very happy with new Worcester bosh boiler. Many thanks! Happy Xmas to everyone.

December 20, 2023
Unprompted review
Rated 2 out of 5 stars

House Energy Efficiency Upgrade

I did wish to leave a positive feedback, however there are many things went wrong after the work completed. This was a energy efficiency project for the house with changing a new boiler, loft insulation, bathroom fans, radiator valves, etc. After they finished the work the upstairs bathroom shower unit did not been isolated hence lots of leaking through the floor to the downstairs, and I eventually resolved myself but left cracks and holes to the kitchen ceiling with moisture and mold. After loft insulation they broke part of the roof and I realized until my bedroom ceiling started to leak and mold. They also cut corners when installing the bathroom fans with no duct in the wall, and only used silicon gel to put the duct cover to the external wall without any screws fitted, resulted both duct covers fell off 1 month after work completed. As I said I'm not happy with the work completed and left too many things that I need to resolve myself.

September 20, 2023
Unprompted review
Rated 5 out of 5 stars

Stellar has been so helpful

Stellar has been so helpful, doing a complete first time installation of central heating and a boiler replacement within a week. The team was very quick and efficient. Really pleased with their work ethics and would recommend them to prospective people. Thankyou guys!

October 20, 2023
Unprompted review
Rated 5 out of 5 stars

Excellent job

Amazing service by IGNI and stellar insulation team.
The guys who fitted my boiler were friendly and efficient.come on the time and cleaned up well after themselves. Also the guy who done the survey was extremely helpful and knowledge. I'm extremely happy with the job.

August 22, 2023
Unprompted review
Rated 5 out of 5 stars

For Abdul Rehman

Excellent service from start to finish, all the paperwork was taken care of and I was given a date. Robert and Michael turned up bang on time and completed the boiler installation quickly with no fuss.

May 18, 2023
Unprompted review
Rated 5 out of 5 stars

Excellent company and nice people

Abdur, the surveyor is a very nice, polite, professional and very helpful person. His team is very efficient and knowledgeable. They did a very good job at my property. They replaced my old boiler with combi- boiler, loft insulation and a few other jobs. I would definitely recommend them.

June 4, 2023
Unprompted review

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