External wall insulation in Hounslow
Planning external wall insulation in Hounslow? The answers below cover cost, timescales and the rules that apply in England; the free survey turns them into a fixed price for your house.
Homes in and around Hounslow
Hounslow is in the TW3 postcode district, about 10 miles from London. 6 other towns we cover are within 25 miles.
Nearby places we cover from Hounslow include Isleworth (1 miles), Heston (1 miles) and Richmond (2 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: Isleworth (1 mile), Heston (1 mile), Richmond (2 miles), Hanworth (3 miles), Feltham (3 miles), Southall (3 miles).
External wall insulation prices in Hounslow
Guide prices for external wall insulation in Hounslow 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 Hounslow
- EPS insulated render
- Phenolic EWI
- Insulated cladding
- Insulating lime render
- Silicone render finish
- Mineral & silicate render
- Non-traditional houses
- Semi-detached EWI
- Detached house EWI
- Failed EWI remediation
- All 24 services
Rules that apply in Hounslow
- Funding
- Low-income households in homes rated below EPC C can apply for Warm Homes: Local Grant where their council is taking part. The Great British Insulation Scheme closed on 31 March 2026, and ECO4 closes on 31 December 2026; its final months are for finishing and putting right existing work. Grant schemes use their own approved installers, so check a scheme's installer rules before booking; our quotes are for privately funded work unless we confirm otherwise in writing. Grants guide
- 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 Hounslow: questions
How much should I budget for external wall insulation in Hounslow?
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 Hounslow and fixes the total in writing.
Do you cover Isleworth as well as Hounslow?
Yes. From Hounslow we also cover Isleworth, Heston and Richmond, and the rest of Greater London.
Which EWI system suits homes in Hounslow?
It depends on the walls. Most brick houses in Hounslow suit EPS with silicone render; older stone or lime-built walls suit wood fibre or insulating lime render; and blocks need mineral wool. The free survey recommends one and explains why.