External wall insulation in Hayes
Planning external wall insulation in Hayes? The answers below cover cost, timescales and the rules that apply in England; the free survey turns them into a fixed price for your house.

Homes in and around Hayes
Hayes is in the UB3 postcode district, about 13 miles from London. 6 other towns we cover are within 25 miles.
Nearby places we cover from Hayes include Southall (2 miles), Heston (3 miles) and Greenford (3 miles), all in England.
Your quote will name the certified system, the board thickness and the calculated U-value for your walls, not a vague 'insulation package'.
Nearby towns we cover: Southall (2 miles), Heston (3 miles), Greenford (3 miles), Northolt (3 miles), Uxbridge (3 miles), Ruislip (4 miles).
External wall insulation prices in Hayes
Guide prices for external wall insulation in Hayes 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 Hayes
- EWI installation
- EPS insulated render
- Mineral wool EWI
- Insulated cladding
- Silicone render finish
- Terraced house EWI
- Semi-detached EWI
- EWI repairs
- Failed EWI remediation
- EWI surveys
- All 24 services
Rules that apply in Hayes
- Planning
- On a house, external wall insulation is usually permitted development if the finish looks similar to the existing walls. Render or cladding on a house in a conservation area, National Park, National Landscape (AONB), the Broads or a World Heritage Site needs planning permission. Flats and maisonettes have no householder permitted development rights, listed buildings need listed building consent, and an Article 4 direction can remove rights locally.
- 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 Hayes: questions
How much should I budget for external wall insulation in Hayes?
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 Hayes and fixes the total in writing.
Is VAT charged on external wall insulation in Hayes?
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 Southall as well as Hayes?
Yes. From Hayes we also cover Southall, Heston and Greenford, and the rest of Greater London.