External wall insulation in Maidenhead
Looking for external wall insulation in Maidenhead? We survey homes across Berkshire and the SL6 postcode district, measure every wall and give you a fixed price in writing before any work is booked.

Homes in and around Maidenhead
Maidenhead is in the SL6 postcode district, about 12 miles from Reading. 6 other towns we cover are within 25 miles.
From Maidenhead we also cover Slough (5 miles away), Windsor (6 miles) and High Wycombe (7 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: Slough (5 miles), Windsor (6 miles), High Wycombe (7 miles), Bracknell (8 miles), Gerrards Cross (8 miles), Wokingham (9 miles).
External wall insulation prices in Maidenhead
Guide prices for external wall insulation in Maidenhead 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.
The final figure depends on wall area, the number of windows and doors, the finish and how much work the roofline, sills and services need.
Popular services in Maidenhead
- EPS insulated render
- Mineral wool EWI
- Brick slip EWI
- Silicone render finish
- Non-traditional houses
- Semi-detached EWI
- Flats & low-rise blocks
- Social housing EWI
- EWI for landlords
- Failed EWI remediation
- All 24 services
Rules that apply in Maidenhead
- 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 Maidenhead: questions
How much should I budget for external wall insulation in Maidenhead?
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 Maidenhead and fixes the total in writing.
Do you cover Slough as well as Maidenhead?
Yes. From Maidenhead we also cover Slough, Windsor and High Wycombe, and the rest of Berkshire.
Which EWI system suits homes in Maidenhead?
It depends on the walls. Most brick houses in Maidenhead 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.