Internal wall insulation · County Antrim
Internal wall insulation in Ballymena
Looking for internal wall insulation in Ballymena? We survey homes across Ballymena and the BT42 area, then give you a fixed written price before any work starts. Where a property in Ballymena is in a conservation area or the front elevation must stay unchanged, internal insulation is often the practical route.
- Free survey in BT42 and nearby
- Guide price from £75 per m² 0% VAT
- Fixed written price before work starts
Free survey in Ballymena
Postcode, service and a phone number is all we need.
Included as standard
- Insulated plasterboard, stud wall or breathable systems
- Can be done one room at a time during a renovation
- Sockets, radiators, skirting and coving are moved and refitted
- Loses roughly 50–100mm per insulated wall
Local considerations in Ballymena
We cover Ballymena and nearby Antrim, Magherafelt and Larne. It's roughly 23 miles from Ballymena to Belfast, the largest town in County Antrim. 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 Ballymena homes room by room so you keep the rest of the house usable.
- Postcode district
- BT42
- County or area
- County Antrim
- Nation
- Northern Ireland
- Nearby
- Antrim, Magherafelt, Larne, Newtownabbey
Approvals in Northern Ireland
Internal insulation rarely needs planning permission; listed buildings need consent for internal changes.
Building control applies to insulation and major re-rendering in Northern Ireland, and the work is signed off by the council.
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 Ballymena
| 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.
What happens next
Get a guide price
Try the online quote tool for a ballpark figure.
Book the survey
A visit at a time that suits you.
Agree the quote
Nothing starts until you've signed the written price.
We do the work
Planned around weather, with you kept informed.
Internal wall insulation in Ballymena: questions
How much room space will I lose?
Usually 50–100mm on each insulated wall, depending on the system.
What happens to my radiators and sockets?
They're taken off and refitted on the new wall face. Electrical work is done by a qualified electrician.
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 Ballymena?
Yes — we survey and quote internal wall insulation in Ballymena (BT42) and nearby Antrim, Magherafelt and Larne, with a fixed written price before any work starts.