External wall insulation in Castlereagh
Every external wall insulation job in Castlereagh starts with a free survey of your walls: what they are built from, how they have weathered, and what the details around windows, eaves and services will need.
Homes in and around Castlereagh
Castlereagh is in the BT5 postcode district, about 2 miles from Belfast. 6 other towns we cover are within 25 miles.
Our Castlereagh surveys cover the BT5 district and the surrounding area, including Belfast, Newtownabbey and Lisburn.
Parts of County Antrim see high levels of wind-driven rain, so render specification and the details at sills and the roofline get extra attention.
Nearby towns we cover: Belfast (2 miles), Newtownabbey (6 miles), Lisburn (7 miles), Newtownards (8 miles), Carrickfergus (10 miles), Bangor, Down (11 miles).
External wall insulation prices in Castlereagh
Guide prices for external wall insulation in Castlereagh 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.
Bays, gables, conservatory junctions and narrow side passages take longer than plain walls, so the survey prices your actual house rather than an average.
Popular services in Castlereagh
- Mineral wool EWI
- Brick slip EWI
- Insulated cladding
- Solid wall insulation
- Non-traditional houses
- Terraced house EWI
- Semi-detached EWI
- Flats & low-rise blocks
- Failed EWI remediation
- EWI surveys
- All 24 services
Rules that apply in Castlereagh
- Planning
- Planning in Northern Ireland is handled by the 11 councils. Changes that alter a house's appearance, work on flats, listed buildings and conservation areas should be checked with the council planning office before work is booked.
- 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 Castlereagh: questions
How much should I budget for external wall insulation in Castlereagh?
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 Castlereagh and fixes the total in writing.
Is VAT charged on external wall insulation in Castlereagh?
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 Belfast as well as Castlereagh?
Yes. From Castlereagh we also cover Belfast, Newtownabbey and Lisburn, and the rest of County Antrim.