External wall insulation in Bath
From Bath to Trowbridge and Kingswood, we plan external wall insulation around the house in front of us rather than a standard package, with guide prices online and a written quote after survey.

Homes in and around Bath
Bath is in the BA1 postcode district. 6 other towns we cover are within 25 miles.
Nearby places we cover from Bath include Trowbridge (8 miles), Kingswood (8 miles) and Whitchurch (9 miles), all in England.
Your quote will name the certified system, the board thickness and the calculated U-value for your walls, not a vague 'insulation package'.
Nearby towns we cover: Trowbridge (8 miles), Kingswood (8 miles), Whitchurch (9 miles), Brislington (9 miles), Mangotsfield (10 miles), Fishponds (10 miles).
External wall insulation prices in Bath
Guide prices for external wall insulation in Bath 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.
Whole-house prices include standard scaffolding, beads, sills and refitting services; unusual access, footpath licences and wall repairs are quoted separately.
Popular services in Bath
- EPS insulated render
- Mineral wool EWI
- Wood fibre EWI
- Brick slip EWI
- Silicone render finish
- Solid wall insulation
- Non-traditional houses
- Terraced house EWI
- Failed EWI remediation
- EWI surveys
- All 24 services
Rules that apply in Bath
- 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 Bath: questions
How much should I budget for external wall insulation in Bath?
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 Bath and fixes the total in writing.
Do you cover Trowbridge as well as Bath?
Yes. From Bath we also cover Trowbridge, Kingswood and Whitchurch, and the rest of Somerset.
How long will the work take in Bath?
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.