External wall insulation in Stevenage
We cover Stevenage and nearby Hitchin for external wall insulation, with the survey, system choice, building control and finish all set out in one written quote.
Homes in and around Stevenage
Stevenage is in the SG1 postcode district, about 19 miles from Watford. 6 other towns we cover are within 25 miles.
From Stevenage we also cover Hitchin (5 miles away), Letchworth Garden City (5 miles) and Welwyn Garden City (7 miles).
Whatever the exposure of your street, the details at sills, eaves and the base of the wall are what keep an EWI system dry, and we draw them before work starts.
Nearby towns we cover: Hitchin (5 miles), Letchworth Garden City (5 miles), Welwyn Garden City (7 miles), Harpenden (9 miles), Hertford (9 miles), Luton (9 miles).
External wall insulation prices in Stevenage
Guide prices for external wall insulation in Stevenage 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.
Brick slips, cladding and mineral wool cost more than EPS and render; the survey shows you the difference side by side.
Popular services in Stevenage
- EWI installation
- EPS insulated render
- Wood fibre EWI
- Mineral & silicate render
- Non-traditional houses
- Bungalow EWI
- Flats & low-rise blocks
- EWI for landlords
- Failed EWI remediation
- EWI surveys
- All 24 services
Rules that apply in Stevenage
- Building regulations
- Insulating more than half of a wall, or more than a quarter of the whole building envelope, counts as renovating a thermal element under the Building Regulations, so the wall should reach 0.30 W/m²K where that is technically, functionally and economically feasible, and building control must be involved.
- 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 Stevenage: questions
How much should I budget for external wall insulation in Stevenage?
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 Stevenage and fixes the total in writing.
Do you cover Hitchin as well as Stevenage?
Yes. From Stevenage we also cover Hitchin, Letchworth Garden City and Welwyn Garden City, and the rest of Hertfordshire.
How long will the work take in Stevenage?
Two to six weeks on site for most houses, depending on size: bungalows are quicker, detached houses longer, weather allowing. Render isn't applied in rain or frost.