External wall insulation in Deeside
Homeowners in Deeside look at external wall insulation for warmer rooms, lower heat loss and a new exterior in one job. Here is how it works, what it costs and which Wales rules apply.
Homes in and around Deeside
Deeside is in the CH5 postcode district, about 11 miles from Wrexham. 6 other towns we cover are within 25 miles.
Our Deeside surveys cover the CH5 district and the surrounding area, including Hawarden, Buckley and Flint.
Parts of Clwyd see high levels of wind-driven rain, so render specification and the details at sills and the roofline get extra attention.
Nearby towns we cover: Hawarden (1 mile), Buckley (3 miles), Flint (5 miles), Wrexham (11 miles), Rhosllannerchrugog (13 miles), Rhyl (20 miles).
External wall insulation prices in Deeside
Guide prices for external wall insulation in Deeside run from about £109 to £175 per square metre installed, depending on system and finish; scaffolding priced per house, with VAT at 0% on homes until 31 March 2027.
Bays, gables, conservatory junctions and narrow side passages take longer than plain walls, so the survey prices your actual house rather than an average.
Popular services in Deeside
- EWI installation
- Mineral wool EWI
- Phenolic EWI
- Insulating lime render
- Terraced house EWI
- Detached house EWI
- Social housing EWI
- EWI for landlords
- EWI repairs
- EWI surveys
- All 24 services
Rules that apply in Deeside
- Planning
- Welsh guidance allows cladding a house without an application if the materials look similar to the original, but external wall insulation that projects more than 16cm from the wall needs planning permission. Any cladding or render in a conservation area, National Park, AONB or World Heritage Site needs permission, listed buildings need consent, and permitted development rights may have been removed by condition or Article 4 direction.
- VAT
- Installing insulation in a home is zero-rated for VAT until 31 March 2027, then 5%.
Checked October 2026. Rules change, so we confirm them for your address at survey.
External wall insulation in Deeside: questions
How much should I budget for external wall insulation in Deeside?
Budget around £109–£175 per square metre of wall for the system and finish, plus scaffolding priced per house. The survey measures your walls in Deeside and fixes the total in writing.
Is VAT charged on external wall insulation in Deeside?
Not on installing insulation in a home at the moment: that's zero-rated until 31 March 2027, after which the rate is due to be 5%. Work on commercial buildings is standard-rated.
Do you cover Hawarden as well as Deeside?
Yes. From Deeside we also cover Hawarden, Buckley and Flint, and the rest of Clwyd.