External wall insulation in Purley
External wall insulation in Purley and across Greater London, priced from a free survey and installed with photographs of every hidden detail.
Homes in and around Purley
Purley is in the CR8 postcode district, about 12 miles from London. 6 other towns we cover are within 25 miles.
We arrange surveys in Purley (CR8) at a time that suits you, and cover neighbouring Coulsdon, South Croydon and Wallington too.
We photograph every hidden layer as it goes on, so you have a record of what's behind the finish on your Purley home.
Nearby towns we cover: Coulsdon (2 miles), South Croydon (2 miles), Wallington (3 miles), Carshalton (3 miles), Croydon (3 miles), Sutton (4 miles).
External wall insulation prices in Purley
Guide prices for external wall insulation in Purley 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 Purley
- EWI installation
- Wood fibre EWI
- Brick slip EWI
- Mineral & silicate render
- Pebbledash & dry dash EWI
- Non-traditional houses
- Park home insulation
- Flats & low-rise blocks
- EWI for landlords
- EWI repairs
- All 24 services
Rules that apply in Purley
- 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 Purley: questions
How much should I budget for external wall insulation in Purley?
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 Purley and fixes the total in writing.
Do you cover Coulsdon as well as Purley?
Yes. From Purley we also cover Coulsdon, South Croydon and Wallington, and the rest of Greater London.
How long will the work take in Purley?
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.