Grantiaucymru Reviews 14

TrustScore 4 out of 5

4.0

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Contact info

4.0

Great

TrustScore 4 out of 5

14 reviews

5-star
4-star
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1-star

No history of asking for reviews

This company hasn't invited their customers, so reviews may not be representative

Hasn’t replied to negative reviews

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Rated 1 out of 5 stars

Truly a waste of time

This whole process started in 2024. We had all sorts of surveys, we were told we passed everything and have been approved. A whole year went by and no one told us more than this, even with us contacting them every couple of months or so. Then in November 2025 we got a message saying the application has been cancelled. No reason why, no further information.

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

Talk to Cameron and get things done.

Nearly a year ago I contacted Grantiau Cymru to see if I could access an eco4 flex grant for my home instead of the expensive system I had.
I was contacted by Cameron, and everything moved forward with help and advice. Due to other personal issues I was a bit slow, but twelve months on and everything is now completed with me signed with Octopus for my export guarantee payment.
This review is a way of saying thank you to Grantiau Cymru for the way my application was handled by Cameron who on more than one occasion had to help out to due to minor glitches on the way.
THomas E Evans MBE

January 21, 2026
Unprompted review
Rated 5 out of 5 stars

Warm comfortable home, excellent customer service

Excellent customer service, they kept me informed all the way through. Installers were repectful of our home and flexible on timings. They did a lovely job and most importantly our house is now dry and warm. Its a stone welsh cottage and previously had a damp problem. The air sourse heat pump and solar panels have eradicated the damp problem and the house feels much more comfortable. Exceeded our expectations!

October 23, 2025
Unprompted review
Rated 5 out of 5 stars

New heating

Very good service from start to finish was kept up to date with what was going on heating work great

March 17, 2025
Unprompted review
Rated 5 out of 5 stars

Simple install

The whole process was managed in a proffesional manner, each team that came to work on our property from the scaffolders to the panel installers where respectful and polite but most of all took pride in their work👍

June 20, 2025
Unprompted review
Rated 5 out of 5 stars

Highly recommended

I highly recommend this business
Their customer service is second to none
The product quality is consistently outstanding exceeding my expectations every time
I was completely impressed with their professionalism and customer service

October 23, 2025
Unprompted review
Rated 1 out of 5 stars

Potential Scam

Cold called. Claimed to represent the Welsh Government if relation to ECO4 grants for Solar PV etc. Rang back pushing another "related" company called the Altum Organization as the best to do the work. Has all the hallmarks of a scam. Beware.

July 23, 2025
Unprompted review

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