Internal wall insulation · County Antrim
Internal wall insulation in Antrim
Homeowners and landlords in Antrim can get a free survey and a fixed written quote for internal wall insulation, covering BT41 and the surrounding area. Where a property in Antrim is in a conservation area or the front elevation must stay unchanged, internal insulation is often the practical route.
- Free survey in BT41 and nearby
- Guide price from £75 per m² 0% VAT
- Fixed written price before work starts
Free survey in Antrim
Postcode, service and a phone number is all we need.
Included as standard
- Keeps the outside of the house exactly as it is
- Loses roughly 50–100mm per insulated wall
- Can be done one room at a time during a renovation
- Sockets, radiators, skirting and coving are moved and refitted
Before we quote in Antrim
Surveys in Antrim also cover the surrounding BT41 district and towns such as Ballymena and Newtownabbey. Antrim is about 14 miles from Belfast. Northern Ireland has many rendered and pebble-dashed homes, older solid-walled rural houses, and estates built by the Housing Executive.
Parts of County Antrim 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.
We plan internal insulation in Antrim homes room by room so you keep the rest of the house usable.
- Postcode district
- BT41
- County or area
- County Antrim
- Nation
- Northern Ireland
- Nearby
- Ballymena, Newtownabbey, Belfast, Lisburn
Northern Ireland: planning and regulations
Internal insulation rarely needs planning permission; listed buildings need consent for internal changes.
Council building control in Northern Ireland checks insulation work of this kind; the quote says how the application is handled.
What are the risks with internal insulation?
Insulating inside makes the masonry colder, so moisture risk rises. Weak points are where floor joists bear into the wall, window reveals and corners. A condensation risk check for the build-up, a continuous vapour control layer where specified, and returning insulation into reveals deal with most of it.
Internal wall insulation prices in Antrim
| 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.
How it works
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 Antrim: questions
How much room space will I lose?
Usually 50–100mm on each insulated wall, depending on the system.
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.
Can I stay in the house?
Yes, but each room is out of use while it's worked on, typically 3–5 days.
Do you cover Antrim?
Yes — we survey and quote internal wall insulation in Antrim (BT41) and nearby Ballymena, Newtownabbey and Belfast, with a fixed written price before any work starts.