External wall insulation in Barry
Every external wall insulation job in Barry starts with a free survey of your walls: what they are built from, how they have weathered, and what the details around windows, eaves and services will need.
Homes in and around Barry
Barry is in the CF62 postcode district, about 7 miles from Cardiff. 6 other towns we cover are within 25 miles.
Our Barry surveys cover the CF62 district and the surrounding area, including Penarth, Cardiff and Caerphilly.
Most EWI failures start at the edges rather than the middle of a wall, so the quote for your Barry home sets out how each detail will be built.
Nearby towns we cover: Penarth (5 miles), Cardiff (7 miles), Caerphilly (12 miles), Pontypridd (14 miles), Bridgend (15 miles), Risca (16 miles).
External wall insulation prices in Barry
Guide prices for external wall insulation in Barry 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.
What moves the price most is the board and finish you choose, the access around the house, and details such as roofline extensions or moving a gas meter.
Popular services in Barry
- EPS insulated render
- Wood fibre EWI
- Insulated cladding
- Silicone render finish
- Non-traditional houses
- Bungalow EWI
- Flats & low-rise blocks
- EWI for landlords
- EWI repairs
- EWI surveys
- All 24 services
Rules that apply in Barry
- Funding
- Warm Homes Nest provides free improvements to low-income owner-occupiers and private tenants, and the Green Homes Wales pilot has offered interest-free loans to households above those thresholds. ECO4 closes on 31 December 2026. These schemes use their own approved installers; our quotes are for privately funded work unless we confirm otherwise in writing. Grants guide
- 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 Barry: questions
How much should I budget for external wall insulation in Barry?
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 Barry and fixes the total in writing.
Do you cover Penarth as well as Barry?
Yes. From Barry we also cover Penarth, Cardiff and Caerphilly, and the rest of South Glamorgan.
Which EWI system suits homes in Barry?
It depends on the walls. Most brick houses in Barry suit EPS with silicone render; older stone or lime-built walls suit wood fibre or insulating lime render; and blocks need mineral wool. The free survey recommends one and explains why.