External wall insulation in Crawley
If you live in Crawley (RH11) and your walls are solid, system-built or simply cold, external wall insulation may be the most effective upgrade you can make without losing any room inside.
Homes in and around Crawley
Crawley is in the RH11 postcode district. 6 other towns we cover are within 25 miles.
We arrange surveys in Crawley (RH11) at a time that suits you, and cover neighbouring Horley, Horsham and East Grinstead too.
We photograph every hidden layer as it goes on, so you have a record of what's behind the finish on your Crawley home.
Nearby towns we cover: Horley (4 miles), Horsham (7 miles), East Grinstead (8 miles), Reigate (9 miles), Haywards Heath (9 miles), Redhill (9 miles).
External wall insulation prices in Crawley
Guide prices for external wall insulation in Crawley 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 Crawley
- Wood fibre EWI
- Brick slip EWI
- Insulated cladding
- Insulating lime render
- Silicone render finish
- Solid wall insulation
- Non-traditional houses
- Bungalow EWI
- EWI for landlords
- Failed EWI remediation
- All 24 services
Rules that apply in Crawley
- 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 Crawley: questions
How much should I budget for external wall insulation in Crawley?
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 Crawley and fixes the total in writing.
Do you cover Horley as well as Crawley?
Yes. From Crawley we also cover Horley, Horsham and East Grinstead, and the rest of West Sussex.
How long will the work take in Crawley?
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.