Cocuun

3.1/5 Overall rating · 19 reviews

About

Cocuun is a TrustMark registered company operating across the UK, offering comprehensive renewable energy solutions. They provide expert services for solar panel installations and various other sustainable energy systems.

Pros & Cons

Pros

  • TrustMark registered
  • Solar panels, heat pumps and EV charger installations
  • Covers Harrogate, Leeds and Selby
  • Renewable energy specialist

Cons

  • Some customers report delays, unfinished work and poor installation quality

Services

Ev Chargers Heat Pumps Solar Panels

Service Areas

Harrogate Leeds Selby

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Recent Reviews about Cocuun Ltd

3.1/5
19 reviews

Review Summary for Cocuun Ltd

Cocuun Ltd. generally receives praise for internal wall, loft, and external wall insulation installations, with customers frequently highlighting the politeness and efficiency of their own employed staff, particularly referencing names like Wayne and Gary for quality workmanship and tidiness. However, a significant and recurring weak spot is their inconsistent project management and high staff turnover, which has led to communication breakdowns, lengthy delays, and incomplete or poorly managed subcontracted work, especially for window installations and larger external insulation projects. The company appears best suited for straightforward insulation jobs where their direct employees are involved, and less so for complex projects, particularly those involving government grant schemes like Green Homes Grants, where customers have reported significant frustrations with responsiveness and commitment. Before ordering, potential customers should explicitly clarify whether their project will involve subcontractors, what specific quality control measures are in place for those subcontractors, and gain a clear understanding of the project timeline and communication plan, as issues surrounding incomplete work, property damage, and unreturned deposits are also reported.

Reviews we've extracted from review platforms, sorted by date

Julie April 08, 2025
5.0/5
Trustpilot

Internal wall Insualtion & Loft Insulation installed on one of my rented properties The work was done on time & was very please with the outcome Workmen were very reliable & clean & tidy

Victoria March 25, 2025
5.0/5
Trustpilot

I needed to get a better grip on my heating costs and making sure my house was warm when I got home from work during the winter. Cocuun fitted me smart heating controls, the process was simple, and I was left without doubt on how to work the system when I was out of the house. I have been able to save money by checking in on the warmth of my house, and setting it going before I got home. Thank you.

Javid Iqbal April 12, 2024
1.0/5
Trustpilot

Used cocuun to have my windows fitted They subcontracted the job out to a window company who fitted me very poor quality windows,and installation was really bad and Also damaged my property whilst fitting the windows Beware don’t use cocuun

Steve Corr March 01, 2024
1.0/5
Trustpilot

Been 6 months and external insulation still not finished. Roof leaking, electrics don't work. Never clean up, don't turn up. Either don't know what they're doing or don't care or both. Then get abusive when you complain.

Barbara January 23, 2024
1.0/5
Trustpilot

I am so unhappy with the finish of my Dormer window.Cocuun subcontracted window fitters and all of my windows are amazing apart from the reprehensible dormer. Cocuun treated the front dormer window as a separate entity and not fully part of the house so didn't supply scaffolding, so the window fitters had to push the new window out from the inside. That in turn broke off some of the facia and left the whole of the window framing unfinished, not fully sealed on the outside and open to the elements. Cocuun then consequently blamed me on the condition of the whole frame, siting wear and tear and the weather causing the facia to drop off. All my windows were of poor repair, hence why I required new ones! They have refused to rectify this unless my local Council pay for the scaffolding. This was a Warm Homes fit. Cocuun obviously didn't want to pay for scaffolding, originally on my house. I am the one left with an atrocious front dormer window surround, unlike all my neighbours dormers that have been fully finished. Cocuun are receiving this bad review as they've had so many changes of staff over the last year that I feel I have now been lost and left behind in this particular Warm Homes scheme they were contracted to fit. The windows are, in fact, fantastic and the window company subcontracted were great but they were also concerned by the way they were asked to fit the dormer window from the inside? I am so stressed about this whole issue and I am waiting in trepidation for the remaining old framed surround of the dormer to eventually fall off or worse still, to let in the rain. I check every day. The one star on my review is because Cocuun sub contracted the professional window fitters, not for Cocuun themselves, who have yet to deserve any praise on this as they did absolutely nothing at all but blame me for the current state of my dormer

FAQ about Cocuun

Which renewable energy systems can be installed at a home in Leeds?

We install solar panels, heat pumps and EV chargers.

Which locations near Harrogate are covered for heat pump work?

We cover Harrogate, Leeds and Selby for these installations.

How do I get a price for solar panels on my property?

You can request a quote based on your home and energy needs.

What should I expect when an EV charger is fitted?

Our engineers will complete the work to TrustMark standards after the initial assessment.

Can solar panels and a heat pump both be added to the same house in Selby?

Both systems can be installed where suitable, and we advise requesting a site visit to confirm.

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