External wall insulation in Swanley
Every external wall insulation job in Swanley starts with a free survey of your walls: what they are built from, how they have weathered, and what the details around windows, eaves and services will need.
Homes in and around Swanley
Swanley is in the BR8 postcode district, about 17 miles from Maidstone. 6 other towns we cover are within 25 miles.
Our Swanley surveys cover the BR8 district and the surrounding area, including Bexley, Dartford and Welling.
Most EWI failures start at the edges rather than the middle of a wall, so the quote for your Swanley home sets out how each detail will be built.
Nearby towns we cover: Bexley (3 miles), Dartford (4 miles), Welling (5 miles), Eltham (6 miles), Thamesmead (8 miles), Grays (9 miles).
External wall insulation prices in Swanley
Guide prices for external wall insulation in Swanley 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 Swanley
- EWI installation
- Mineral wool EWI
- Wood fibre EWI
- Non-traditional houses
- Terraced house EWI
- Semi-detached EWI
- Detached house EWI
- Social housing EWI
- EWI for landlords
- Failed EWI remediation
- All 24 services
Rules that apply in Swanley
- 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 Swanley: questions
How much should I budget for external wall insulation in Swanley?
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 Swanley and fixes the total in writing.
Is VAT charged on external wall insulation in Swanley?
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 Bexley as well as Swanley?
Yes. From Swanley we also cover Bexley, Dartford and Welling, and the rest of Kent.