External wall insulation in Seaham
From Seaham to Houghton-le-Spring and Sunderland, 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 Seaham
Seaham is in the SR7 postcode district, about 23 miles from Darlington. 6 other towns we cover are within 25 miles.
Nearby places we cover from Seaham include Houghton-le-Spring (5 miles), Sunderland (5 miles) and Peterlee (5 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: Houghton-le-Spring (5 miles), Sunderland (5 miles), Peterlee (5 miles), Washington (8 miles), Chester-le-Street (9 miles), Durham (10 miles).
External wall insulation prices in Seaham
Guide prices for external wall insulation in Seaham 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 Seaham
- EPS insulated render
- Wood fibre EWI
- Insulated cladding
- Mineral & silicate render
- Semi-detached EWI
- Detached house EWI
- Park home insulation
- Social housing EWI
- EWI repairs
- EWI surveys
- All 24 services
Rules that apply in Seaham
- Planning
- On a house, external wall insulation is usually permitted development if the finish looks similar to the existing walls. Render or cladding on a house in a conservation area, National Park, National Landscape (AONB), the Broads or a World Heritage Site needs planning permission. Flats and maisonettes have no householder permitted development rights, listed buildings need listed building consent, and an Article 4 direction can remove rights locally.
- 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 Seaham: questions
How much should I budget for external wall insulation in Seaham?
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 Seaham and fixes the total in writing.
Is VAT charged on external wall insulation in Seaham?
Not on installing insulation in a home at the moment: that's zero-rated until 31 March 2027, after which the rate is due to be 5%. Work on commercial buildings is standard-rated.
Do you cover Houghton-le-Spring as well as Seaham?
Yes. From Seaham we also cover Houghton-le-Spring, Sunderland and Peterlee, and the rest of County Durham.