Cosyinsulation Reviews 502

TrustScore 4.5 out of 5

4.7

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Review summary

Based on reviews, created with AI

Reviewers overwhelmingly had a great experience with this company. Customers consistently praise the staff for their professionalism, efficiency, and friendly demeanor, noting that the work is often completed on time and to a high standard. Many people appreciate the cleanliness of the work, with teams ensuring everything is left spotless. The overall service is frequently described as excellent, with consumers highlighting the smooth process from initial consultation to completion. However, some customers also noted issues with communication and coordination, particularly regarding appointments and grant paperwork. A few people were dissatisfied with the conduct of a BER assessor, describing them as rude. Additionally, some reviewers mentioned that the installation teams occasionally left behind rubbish or a small mess.

What people talk about most

Staff

Reviewers mention positive feedback about staff. Customers consistently praise the professionalism,... See more

Service

People report positive experiences with service, highlighting the professionalism and efficiency of the... See more

Based on these reviews

Rated 5 out of 5 stars

Amazing service !! Very quick to answer phones, reply to emails & callbacks. Had a very pleasant consultation which was quick and within budget. They live up to their name as the work done was on tim... See more

Company replied

Rated 5 out of 5 stars

Company were a pleasure to deal with from 1st call to the office to installation. Work carried out quickly & cleanly. First time heating turned on after installation installed we had to turn the ther... See more

Company replied

Rated 5 out of 5 stars

We had freezing attic that makes our house cold , we constantly put turf on our range to keep the house warm. Then your crew came to spray insulation in our attic, they were very hard workers and ve... See more

Company replied

Rated 5 out of 5 stars

Overall very happy with the purchase - the install crew were top notch - flexible - explained everything - hard working - clean - knowledgeable, i have noticed a noticeable improvement in the heat... See more


Company details

  1. Insulation Contractor

Written by the company

Kingspan Synthesia insulation is the most energy efficient and environmentally friendly insulation on the market. It offers an eco friendly form of home insulation, with a lifetime guarantee. We work throughout the UK and Ireland.


Contact info

4.7

Excellent

TrustScore 4.5 out of 5

502 reviews

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Replied to 100% of negative reviews

Typically replies within 1 week

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Rated 5 out of 5 stars

I wanted to take a moment to express my heartfelt thanks to the team

I wanted to take a moment to express my heartfelt thanks to the Cosy Insulations team that came out yesterday to complete the insulation work for us. We were very impressed with the crew’s professionalism and politeness. Not only did they do a fantastic job but also made sure everything was left spotless and tidy, which we truly appreciate. It was very clear that the Cosy Insulations team takes great pride in their work. We’re so pleased with the results that we’ll be enthusiastically recommending Cosy Insulations to our family and friends.
Thank you again for your excellent service.

March 3, 2026
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Rated 5 out of 5 stars

Highly Recommend Cosy Insulation.

From the time Richie came out to see our home. His whole mannerism and professionalism was second to none. He explained in great details about the SEAI grants which we did not avail of. We saved the money and our roof is now complete. The guys that came out on the day, were very professional and did the job in no time at all. I would not have an issue recommending Cosy Insulation. Listen to what Richie has to say and follow his advice. He actually knows what he is talking about and only wants the best for his customers.

February 25, 2026
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Rated 5 out of 5 stars

J.W.

Cozy Insilution completed their work very professionally and efficiently from start to finish. They took care of all the important details. The time from the initial visit to the arrival of the lad's who carried out the work was very short. The lad's was very friendly. From the moment they entered the house, they wasted no time and immediately got to work to complete the job as quickly as possible. After finishing the job, they cleaned up thoroughly, leaving a tidy mess behind.

November 25, 2025
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Rated 1 out of 5 stars

We rang and got a quote from Cosy…

We rang and got a quote from Cosy insulation. We decided to go with them. We rang and someone came out to put insulation in. Turns out the guy had left cosy insulation and went out on his own and never told us. Cosy insulation would not stand over it even tho the were the first point of contact.

September 30, 2025
Unprompted review
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Reply from Cosyinsulation

Hi Patricia.

We feel it is important to clarify the facts regarding this matter.

The individual who originally provided your quotation ceased working for and representing Cosy Insulation prior to the works being instructed or carried out. At the time you proceeded with the installation, he was operating independently under his own company.

Cosy Insulation was not involved in arranging, carrying out, supervising, or invoicing the installation. We did not receive payment for the works and had no knowledge that the job was proceeding.

Accordingly, the contract for the installation exists solely between yourself and the company that completed and invoiced the work. Cosy Insulation cannot accept responsibility for works undertaken independently by a third party who was no longer authorised to act on our behalf.

We take our reputation and professional standards extremely seriously and would never allow work to proceed under our name without our direct contractual involvement and guarantee.

Should you wish to discuss this matter further, you are welcome to contact our office directly.

Rated 5 out of 5 stars

We had freezing attic that makes our…

We had freezing attic that makes our house cold , we constantly put turf on our range to keep the house warm. Then your crew came to spray insulation in our attic, they were very hard workers and very clean which I was very impressed with them.
So now the house is unbelievable warm and less turf on our range , saving turf. It made a huge difference thank God. I'm so happy and I told a lot of my friends about cossy insulation

January 20, 2026
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Reply from Cosyinsulation

Thank you for your great review

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Rated 4 out of 5 stars

Service was great, customer service was let down by one individual

I contacted Cosy through Instagram, guy came out and gave a run through of whats done, and I signed up on the day. The lads came about a month later and did the insultation no problem. About 2 weeks later a chap came to do the BER no issues.

The day after the BER guy came I got a call from Sinead in the office asking whether I received a form from the SEAI, which I hadn't. She asked whether I could chase this up for them. I said, well its not really up to me to chase it as all of the grant side of things was meant to be done by Cosy. She got really short on the phone and said "fine I will take care of it" and then hung up. Poor customer service, poor attitude.

January 20, 2026
Unprompted review
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Reply from Cosyinsulation

Hi Simon,

Thank you for your feedback.

I’m very pleased to hear that you were happy with the installation and BER process. It’s important to us that the work itself is carried out to a high standard, so I appreciate you highlighting that.

In relation to the SEAI paperwork, just to clarify for anyone reading — SEAI deal directly with the homeowner and will not correspond with the contractor regarding certain forms. On occasion we may need to ask customers to forward correspondence they receive, as we simply cannot access it ourselves.

I have reviewed the call internally. The recording shows that the conversation concluded with us confirming that we would take care of the matter and saying goodbye. There was no abrupt termination of the call. That said, if the tone came across in any way as short or unhelpful, that certainly wouldn’t be intentional and I apologise if that’s how it felt on your end.

We manage a large volume of grant applications and always aim to keep the process as smooth as possible for our customers.

If you’d like to discuss anything further, you’re welcome to contact me directly.

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Rated 5 out of 5 stars

Amazing service !

Amazing service !! Very quick to answer phones, reply to emails & callbacks. Had a very pleasant consultation which was quick and within budget. They live up to their name as the work done was on time & extremely professional. We also received a callback to confirm that we were happy with the job and received our warranty certificate.

January 16, 2026
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Reply from Cosyinsulation

Thank you for the amazing review

Rated 5 out of 5 stars

From the get go

From the get go , clear info, set amount , set date and time , clean fast work
The heat now in the house especially the first floor is unbelievable no rads needed at all

January 13, 2026
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Reply from Cosyinsulation

Thanks for the fantastic review

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