External wall insulation in Nailsea
If you live in Nailsea (BS48) 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 Nailsea
Nailsea is in the BS48 postcode district, about 18 miles from Bath. 6 other towns we cover are within 25 miles.
We arrange surveys in Nailsea (BS48) at a time that suits you, and cover neighbouring Portishead, Clevedon and Clifton too.
We photograph every hidden layer as it goes on, so you have a record of what's behind the finish on your Nailsea home.
Nearby towns we cover: Portishead (3 miles), Clevedon (4 miles), Clifton (6 miles), Bishopsworth (6 miles), Westbury-on-Trym (7 miles), Redland (7 miles).
External wall insulation prices in Nailsea
Guide prices for external wall insulation in Nailsea 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 Nailsea
- EWI installation
- Mineral wool EWI
- Phenolic EWI
- Wood fibre EWI
- Insulated cladding
- Insulating lime render
- Silicone render finish
- Solid wall insulation
- Bungalow EWI
- EWI surveys
- All 24 services
Rules that apply in Nailsea
- 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 Nailsea: questions
How much should I budget for external wall insulation in Nailsea?
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 Nailsea and fixes the total in writing.
Do you cover Portishead as well as Nailsea?
Yes. From Nailsea we also cover Portishead, Clevedon and Clifton, and the rest of Somerset.
How long will the work take in Nailsea?
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.