GRS Insulation Ltd Reviews 100

TrustScore 4.5 out of 5

4.6

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Review summary

Created with AI, based on recent reviews

Looking at 40 reviews, reviewers overwhelmingly had a great experience with this company. Customers frequently praise the staff for their helpfulness, efficiency, and professional approach, noting that interactions were pleasant from start to finish. Many people highlight the excellent service, describing it as fast, efficient, and tidy, with a noticeable improvement in warmth after insulation work. Conversely, a small portion of people felt dissatisfied with the company, reporting issues such as unfinished jobs, holes in the ceiling, and a lack of communication after workers disappeared. Some customers also mentioned receiving incorrect information, leading to disappointment when promised improvements could not be carried out.

What people talk about most

Staff

Reviewers mention positive feedback about staff. Customers consistently praise the staff for being friendly,... See more

Service

Reviewers highlight positive aspects of service, with many praising the professionalism and efficiency of the... See more

Reviews shaping this summary

Rated 5 out of 5 stars

From noting my requirements on the Bark website GRS contacted me straight away and organised a visit within 24 hours. I received the quotation the same night. I accepted the quotation to go ahead w... See more

Rated 5 out of 5 stars

In January 2025 we were seriously let down by an insulation company based in Wolverhampton. After nearly nine months of constant heartache we finally managed to get our money back. We looked around fo... See more

Rated 5 out of 5 stars

Graeme called and gave us a quote after surveying the property.. we were booked in the following week. The guys who installed it were very professional snd thorough and cleaned up afterwards. They we... See more

Rated 5 out of 5 stars

From the initial contact about a survey, to the survey itself (and several, subsequent and very reassuring chats with Graeme) to the day of the install (can’t remember the two installers’ names bu... See more


Company details

  1. Insulation Contractor

Written by the company

All aspects of home insulation. Boilers Electrical Solar Air Source Heat Pumps


Contact info

4.6

Excellent

TrustScore 4.5 out of 5

100 reviews

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Hasn’t replied to negative reviews

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Rated 1 out of 5 stars

We had an insulated flat roof installed…


We had an insulated flat roof installed at our property under a government grant scheme by GRS Insulation. Unfortunately our experience has been very disappointing.

After the work was completed we experienced multiple problems including water coming through a bathroom light fitting, which actually filled with water and caused damage to the ceiling. We also had water entering the boiler cupboard affecting the electrics, which resulted in a power cut and the boiler shutting down leaving the house without heating.

Although engineers attended and carried out some repairs to the roof and restored the electrics and boiler, further problems have continued. Water is now running down the front of the house due to the threshold drainage being too close to the property and is coming in through the front door. There are also still outstanding remedial works inside the property including repainting the damaged bathroom ceiling and replacing the light fitting.

The property is tenanted and there is a vulnerable child living in the home, so these issues have been extremely concerning.

We are currently waiting for the company to provide a proper plan and timescale to fully resolve the problems caused by the installation.

March 16, 2026
Unprompted review
Rated 5 out of 5 stars

Brilliant service from start to finish!

From the initial contact about a survey, to the survey itself (and several, subsequent and very reassuring chats with Graeme) to the day of the install (can’t remember the two installers’ names but they were both friendly and skilful), GRS were fantastic.

Our EPC said cavity wall insulation (assumed). Turns out it had none! Bonded bead installed today with a 25 year guarantee and we couldn’t be happier. Has made an instant difference to how our home holds onto heat.

Highly recommended!!

December 5, 2025
Unprompted review
Rated 2 out of 5 stars

Communication and systems need improvement

Communication within the company should be improved among employees. The left hand frequently did not know what the right hand was doing. Information gathering systems were not optimal. We received numerous emails and telephone calls about the same paperwork. There was a lot of unnecessary duplication. Most of all, we were given the wrong information which led to disappointment when the promised improvement could not be carried out.

October 1, 2025
Rated 5 out of 5 stars

In January 2025 we were seriously let…

In January 2025 we were seriously let down by an insulation company based in Wolverhampton. After nearly nine months of constant heartache we finally managed to get our money back. We looked around for a local company and were recommended to use GRS Insulation Limited and we have never looked back. They inspected the loft area and advised us on the work to be carried out. They also advised us to approach the local council for a possible grant which was approved. Since day one the company have always been upfront and most importantly honest. The guys who came out and did the actual insulation, installation of the two air vents and loft entrance and boarded area were excellent. Finally to the team in the administration office who were always at the end of the phone if we had any questions and even paid us a visit on a counter of occasions. Thank you one and all for being such a star team.

October 16, 2025
Unprompted review
Rated 5 out of 5 stars

Finally found a good company

After a year of disappointment with the cavity insulation industry, I finally found a company that were interested in the customers needs, not thier own.
Installers were friendly, knowledgable & very helpful to have a good job completed.
Would certainly recommend against other companies I looked at & used.

October 9, 2025
Rated 5 out of 5 stars

Good job by GRS insulation

From the initial assessment of the property to completing the required cavity wall and additional loft insulation, GRS staff were exemplary. Everything was explained and good communication between the office and myself was maintained throughout. Installation was completed in good time and the premises were left in a tidy state. The installation team worked hard and efficiently and were polite and communicative on site. I'm very happy with the work that has been done.

October 13, 2025
Unprompted review
Rated 5 out of 5 stars

Cavity and Loft Insulation

From noting my requirements on the Bark website GRS contacted me straight away and organised a visit within 24 hours. I received the quotation the same night. I accepted the quotation to go ahead with cavity wall insulation and removal and replacement of loft insulation. The price was very reasonable.
Jason and Ollie arrived as confirmed on the day. Both of them were very hardworking and polite. Even though there were a couple of unforeseen issues with the loft and the job took slightly longer than anticipated the communication from them was great and they kept me updated along the way.
Would definitely recommend.

September 22, 2025
Unprompted review

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