Internal wall insulation · County Londonderry
Internal wall insulation in Limavady
If you're planning internal wall insulation in Limavady, start with a free survey: we measure, check the walls and confirm planning and building control for your address. Where a property in Limavady is in a conservation area or the front elevation must stay unchanged, internal insulation is often the practical route.
- Free survey in BT49 and nearby
- Guide price from £75 per m² 0% VAT
- Fixed written price before work starts
Free survey in Limavady
Postcode, service and a phone number is all we need.
What the job covers
- Insulated plasterboard, stud wall or breathable systems
- Sockets, radiators, skirting and coving are moved and refitted
- Loses roughly 50–100mm per insulated wall
- Can be done one room at a time during a renovation

Before we quote in Limavady
Surveys in Limavady also cover the surrounding BT49 district and towns such as Coleraine and Derry~Londonderry. Limavady sits around 15 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.
We plan internal insulation in Limavady homes room by room so you keep the rest of the house usable.
- Postcode district
- BT49
- County or area
- County Londonderry
- Nation
- Northern Ireland
- Nearby
- Coleraine, Derry~Londonderry, Magherafelt, Strabane
Planning and building control in Northern Ireland
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 Limavady
| 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 Limavady: 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 Limavady?
Yes — we survey and quote internal wall insulation in Limavady (BT49) and nearby Coleraine, Derry~Londonderry and Magherafelt, with a fixed written price before any work starts.