External wall insulation in Streatham
We cover Streatham and nearby Mitcham for external wall insulation, with the survey, system choice, building control and finish all set out in one written quote.
Homes in and around Streatham
Streatham is in the SW16 postcode district, about 5 miles from London. 6 other towns we cover are within 25 miles.
From Streatham we also cover Mitcham (2 miles away), Brixton (3 miles) and Wimbledon (3 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: Mitcham (2 miles), Brixton (3 miles), Wimbledon (3 miles), Battersea (3 miles), Croydon (3 miles), Morden (4 miles).
External wall insulation prices in Streatham
Guide prices for external wall insulation in Streatham 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.
The final figure depends on wall area, the number of windows and doors, the finish and how much work the roofline, sills and services need.
Popular services in Streatham
- Insulated cladding
- Insulating lime render
- Silicone render finish
- Mineral & silicate render
- Terraced house EWI
- Semi-detached EWI
- Detached house EWI
- Park home insulation
- Social housing EWI
- Failed EWI remediation
- All 24 services
Rules that apply in Streatham
- 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 Streatham: questions
How much should I budget for external wall insulation in Streatham?
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 Streatham and fixes the total in writing.
Do you cover Mitcham as well as Streatham?
Yes. From Streatham we also cover Mitcham, Brixton and Wimbledon, and the rest of Greater London.
How long will the work take in Streatham?
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.