Internal wall insulation · County Londonderry
Internal wall insulation in Coleraine
Homeowners and landlords in Coleraine can get a free survey and a fixed written quote for internal wall insulation, covering BT52 and the surrounding area. For terraced homes in Coleraine with attractive brick fronts, one approach is to insulate the front internally and the rear externally.
- Free survey in BT52 and nearby
- Guide price from £75 per m² 0% VAT
- Fixed written price before work starts
Free survey in Coleraine
Postcode, service and a phone number is all we need.
Included as standard
- Can be done one room at a time during a renovation
- Loses roughly 50–100mm per insulated wall
- Insulated plasterboard, stud wall or breathable systems
- Sockets, radiators, skirting and coving are moved and refitted
Homes and walls in Coleraine
As well as Coleraine itself, we quote in Limavady, Ballymena and Magherafelt. Coleraine is about 27 miles from Derry~Londonderry. Northern Ireland has many rendered and pebble-dashed homes, older solid-walled rural houses, and estates built by the Housing Executive.
Parts of County Londonderry fall in the higher wind-driven rain exposure bands, especially coastal and upland sites, so render specification, movement joints and detailing at cills, verges and the base of the wall matter more than usual.
Where a property in Coleraine is in a conservation area or the front elevation must stay unchanged, internal insulation is often the practical route.
- Postcode district
- BT52
- County or area
- County Londonderry
- Nation
- Northern Ireland
- Nearby
- Limavady, Ballymena, Magherafelt, Derry~Londonderry
Approvals in Northern Ireland
Internal insulation rarely needs planning permission; listed buildings need consent for internal changes.
External wall insulation is building work under the Building Regulations (Northern Ireland) 2012, so council building control is involved, with Technical Booklet F1 covering dwellings.
What are the options for internal insulation?
- Insulated plasterboard — PIR or phenolic foam bonded to plasterboard, fixed to the wall and skimmed. Thinnest option.
- Insulated stud wall — a timber or metal frame filled with insulation, with a vapour control layer and plasterboard. Takes more space but runs services easily.
- Wood fibre and lime — breathable boards finished in lime plaster, for older walls that need to manage moisture.
Internal wall insulation prices in Coleraine
| Item | Guide price | Notes |
|---|---|---|
| Insulated plasterboard, supplied and skimmed | £75–£110 per m²0% VAT | |
| Insulated stud wall | £90–£130 per m²0% VAT | |
| Typical bedroom, one external wall | £1,795–£2,9950% VAT | Including making good |
Confirmed by a fixed written quote after survey. 0% VAT: installing insulation in a home is zero-rated until 31 March 2027, so these figures are the total; 5% applies from 1 April 2027.
From enquiry to finished wall
Enquiry
Send your postcode and a few details.
Measured survey
Walls, damp, eaves, cills and services recorded.
Written price
A fixed price with the specification attached.
Work and handover
Installed, inspected and documents handed over.
Internal wall insulation in Coleraine: questions
How much room space will I lose?
Usually 50–100mm on each insulated wall, depending on the system.
Can I stay in the house?
Yes, but each room is out of use while it's worked on, typically 3–5 days.
Is internal insulation cheaper than external?
Per m² usually yes, but the cost of moving fittings and redecorating narrows the gap on whole-house jobs.
Do you cover Coleraine?
Yes — we survey and quote internal wall insulation in Coleraine (BT52) and nearby Limavady, Ballymena and Magherafelt, with a fixed written price before any work starts.