External wall insulation in Dartford
We cover Dartford and nearby Bexley for external wall insulation, with the survey, system choice, building control and finish all set out in one written quote.
Homes in and around Dartford
Dartford is in the DA1 postcode district, about 18 miles from Maidstone. 6 other towns we cover are within 25 miles.
From Dartford we also cover Bexley (3 miles away), Swanley (4 miles) and Welling (5 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: Bexley (3 miles), Swanley (4 miles), Welling (5 miles), South Ockendon (5 miles), Grays (5 miles), Thamesmead (6 miles).
External wall insulation prices in Dartford
Guide prices for external wall insulation in Dartford 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.
Bays, gables, conservatory junctions and narrow side passages take longer than plain walls, so the survey prices your actual house rather than an average.
Popular services in Dartford
- EWI installation
- Phenolic EWI
- Wood fibre EWI
- Brick slip EWI
- Insulated cladding
- Silicone render finish
- Non-traditional houses
- Park home insulation
- Flats & low-rise blocks
- Failed EWI remediation
- All 24 services
Rules that apply in Dartford
- 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 Dartford: questions
How much should I budget for external wall insulation in Dartford?
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 Dartford and fixes the total in writing.
Is VAT charged on external wall insulation in Dartford?
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 Dartford?
Yes. From Dartford we also cover Bexley, Swanley and Welling, and the rest of Kent.