External wall insulation in Daventry
Every external wall insulation job in Daventry 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 Daventry
Daventry is in the NN11 postcode district, about 12 miles from Northampton. 6 other towns we cover are within 25 miles.
Our Daventry surveys cover the NN11 district and the surrounding area, including Rugby, Northampton and Royal Leamington Spa.
Most EWI failures start at the edges rather than the middle of a wall, so the quote for your Daventry home sets out how each detail will be built.
Nearby towns we cover: Rugby (9 miles), Northampton (12 miles), Royal Leamington Spa (15 miles), Banbury (15 miles), Warwick (18 miles), Coventry (18 miles).
External wall insulation prices in Daventry
Guide prices for external wall insulation in Daventry 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 Daventry
- EPS insulated render
- Brick slip EWI
- Insulated cladding
- Silicone render finish
- Mineral & silicate render
- Solid wall insulation
- Terraced house EWI
- Park home insulation
- EWI repairs
- EWI surveys
- All 24 services
Rules that apply in Daventry
- 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 Daventry: questions
How much should I budget for external wall insulation in Daventry?
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 Daventry and fixes the total in writing.
Do you cover Rugby as well as Daventry?
Yes. From Daventry we also cover Rugby, Northampton and Royal Leamington Spa, and the rest of Northamptonshire.
How long will the work take in Daventry?
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.