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Gas Tech Wales Ltd

Monmouthshire

MCS Certified
MCS
Certified Installer
12
Counties Covered
2
Technologies
4.4
Google (139 reviews)

MCS certificate NIC-600078 · Verify on MCS

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Technologies

Solar PVHeat Pumps

Reviews

4.4(139 Google reviews)

What customers say on

1/5

So had to remove my first review as the person on the phone black mailed my wife with small claims court if she didn't get me to remove the review even tho when they came we had the 85 in cash but was told they didn't take cash by the engineer but now it's paid can't black mail us anymore and also attached is my original review wouldn't recommend it at all

jack perkins13 Jan 2026
5/5

Just had a solar installation done by these guys. All of the people involved (electricians, scaffolders, panel fitters, etc.) were polite and professional; the install was arranged through OVO and their people onsite were also great. When the planned approach was determined to be slightly wrong -- two strings where one was more appropriate -- they very quickly agreed to the needed changes and got the design updated. Very professional work that is neat and tidy, with my need to work from home being taken into account -- power was only off for about 20 minutes. Scaffolding went up on Monday, installation was done on Wednesday and Thursday, Scaffolding removed on Friday. Overall very pleased and would happily have more work done by Gas Tech Wales.

Gordon Mckeown24 Aug 2023
2/5

Initial contact with the office was good. However our straight forward Solar Panel (on behalf of EON) install started off with the first team turning up at 11am. After running out if time, they left with a second team returning 3 days later. The first team, left the electrical work that had to be installed in a downstairs bedroom, in a messy state. Little consideration was given to the appearance as the newly painted room that was left very dirty and the Isolator and Control box was fitted a distance away from where it could have been fitted. We now have to appoint a carpenter to build a box around the boxes. The second team arrived early enough and completed the work fine. However, I felt that more time could have been spent showing us around the equipment to explain how it all worked and what to do with the software perhaps. An update. The system did not work correctly from installation and after speaking with the Battery/Inverter manufacturers, it was found the system was incorrectly fitted, hence the reversed readings. After a few weeks, they returned to repair, only to have damaged one of the sensor wires, requiring yet another visit. After over a month, it is now working fine.

Ian Berridge24 Nov 2022
1/5

Gas Tech came to my home in October 2020 to fit a boiler on behalf of Eon Energy. Whilst fitting the boiler the engineers melted a water pipe and an electrical cable whilst joining new pipework to old (a protective gauze should have been used) . This has caused a water leak spanning over 14 months which started to come through in December 2021. Currently I have over £1500 worth of damage still not attended too in my kitchen (see photos). Neither Gas Tech or Eon want to address the problem now, neither are answering their emails or phonecalls and a formal complaint has been rejected by Eon. Gas Tech are for some reason saying their not responsible for the work. Stay very clear of this company if you want work done by them. Their nothing more than a bunch of cowboys that think it's acceptable to come into someone's home, cause extensive damage and walk away. If looking for a boiler stay clear of Eon, as aftercare service is non existant. The matter is being taken further now through the ombudsmans service and court action.

Craig Morris25 Feb 2022
5/5

Excellent company. I have been using them for a number of years, initially to install a new boiler and since to carry out it's annual service. Their engineers are always very professional, helpful and explain everything in layman's terms. Plus, they offer real value for money compared to some more nationally recognised household brands.

Steven “Steve” Hill30 Jun 2025
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FAQs About Gas Tech Wales Ltd

Is Gas Tech Wales Ltd MCS certified?

Yes. Gas Tech Wales Ltd is registered under the Microgeneration Certification Scheme (MCS) (certificate number NIC-600078). MCS certification is required for your installation to qualify for the Smart Export Guarantee (SEG) and confirms the work meets recognised UK standards for safety and quality.

What areas does Gas Tech Wales Ltd cover?

Gas Tech Wales Ltd serves Monmouthshire and 11 other counties across the UK. You can see the full list of counties covered on this profile.

What does Gas Tech Wales Ltd install?

Gas Tech Wales Ltd installs Solar PV, Heat Pumps. Every project should include a free survey, a detailed written quote, and installation by MCS-certified engineers.

How is Gas Tech Wales Ltd rated?

Gas Tech Wales Ltd holds a Google rating of 4.4 out of 5 from 139 reviews. You can read reviews and compare against other installers in Monmouthshire on this page.

How much do solar panels cost in Monmouthshire?

A typical 4kW domestic solar PV system in the UK costs around £6,600 to £8,500 installed, with a payback period of roughly 11 to 13 years. Your exact price depends on system size, roof type, and whether you add battery storage. Compare quotes from installers covering Monmouthshire to get accurate figures for your home.

Does Gas Tech Wales Ltd install heat pumps?

Yes. Gas Tech Wales Ltd installs air source heat pumps in Monmouthshire. A typical air source heat pump installation costs around £8,000 to £14,000 before any grant. In England and Wales the Boiler Upgrade Scheme offers a £7,500 grant towards the cost, which an MCS-certified installer can apply on your behalf.

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