Solid wall insulation · County Londonderry
Solid wall insulation in Magherafelt
Need solid wall insulation in Magherafelt? Tell us about the property and we'll arrange a free survey and a written quote. For solid-walled homes in Magherafelt, we check wall thickness and age first to confirm there's no cavity to fill.
- Free survey in BT45 and nearby
- Guide price from £75 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Magherafelt
Postcode, service and a phone number is all we need.
Part of every quote
- Both can be done in stages, elevation by elevation or room by room
- Breathable options for stone and lime-mortared walls
- Internal insulation suits single rooms or where the outside can't change
- Solid walls can lose heat roughly twice as fast as an insulated cavity wall
Magherafelt: walls, weather and approvals
We cover Magherafelt and nearby Cookstown, Ballymena and Antrim. It's roughly 33 miles from Magherafelt to Derry~Londonderry, the largest town in County 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.
On solid-walled houses in Magherafelt, the gable or the most weather-exposed wall is often the place to start.
- Postcode district
- BT45
- County or area
- County Londonderry
- Nation
- Northern Ireland
- Nearby
- Cookstown, Ballymena, Antrim, Dungannon
Permissions in Northern Ireland
Before quoting in Magherafelt, we check whether the property is listed or in a conservation area, which changes what needs planning permission in Northern Ireland.
Building control applies to insulation and major re-rendering in Northern Ireland, and the work is signed off by the council.
How can I tell if my walls are solid?
Measure the wall thickness at a window or door: about 225mm (9 inches) of brick usually means solid, while 260mm or more often means a cavity. On exposed brick, a pattern with bricks laid end-on (headers) every few courses points to solid construction. Stone walls are usually solid regardless of thickness. Age is a strong clue too — most homes built before the 1920s are solid-walled.
Solid wall insulation prices in Magherafelt
| Item | Guide price | Notes |
|---|---|---|
| External (EWI) | £105–£210 per m²0% VAT | By board and finish |
| Internal (IWI) | £75–£130 per m²0% VAT | Plus making good |
| Survey and written recommendation | Free with a quote |
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
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.
Solid wall insulation in Magherafelt: questions
Does solid wall insulation cause condensation?
It can if detailed poorly, particularly internally. A condensation risk check for the proposed build-up and careful detailing at joists, reveals and corners avoid it.
Is solid wall insulation worth it?
For many solid-walled homes it's one of the biggest single improvements to comfort, because the walls are often the largest heat-loss area. Savings depend on the home and heating, so we don't promise a figure.
Can I do one wall at a time?
Yes. Many owners start with the coldest or most exposed elevation, often a gable end.
Do you cover Magherafelt?
Yes — we survey and quote solid wall insulation in Magherafelt (BT45) and nearby Cookstown, Ballymena and Antrim, with a fixed written price before any work starts.