Mineral wool EWI · County Antrim
Mineral wool external wall insulation in Lisburn
Need mineral wool external wall insulation in Lisburn? Tell us about the property and we'll arrange a free survey and a written quote. On blocks and taller buildings in Lisburn, mineral wool is the default because of the fire guidance for external walls.
- Free survey in BT27 and nearby
- Guide price from £125 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Lisburn
Postcode, service and a phone number is all we need.
What you get
- Non-combustible board (typically Euroclass A1 or A2-s1,d0 as part of the system)
- Heavier than EPS, so more fixings and careful handling
- Finished in mineral or silicone render, or brick slip
- Used on blocks of flats and buildings with storeys above 11m
Homes and walls in Lisburn
We cover Lisburn and nearby Belfast, Castlereagh and Newtownabbey. Lisburn sits around 7 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.
Older solid-walled homes in Lisburn can suit a vapour-open mineral wool build-up better than foam; the survey checks the wall first.
- Postcode district
- BT27
- County or area
- County Antrim
- Nation
- Northern Ireland
- Nearby
- Belfast, Castlereagh, Newtownabbey, Holywood
Northern Ireland: planning and regulations
Before quoting in Lisburn, we check whether the property is listed or in a conservation area, which changes what needs planning permission in Northern Ireland.
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.
On taller buildings in Northern Ireland we specify non-combustible mineral wool systems and confirm the classification with building control, in line with Technical Booklet E.
What about noise?
Dense mineral wool adds mass and absorbs sound, so homes beside main roads or railways often notice a quieter interior, particularly where windows are also upgraded. The improvement depends on the whole wall and windows, so we don't quote decibel figures without testing.
Mineral wool external wall insulation prices in Lisburn
| Item | Guide price | Notes |
|---|---|---|
| Mineral wool + mineral or silicone render | £125–£170 per m²0% VAT | Excluding scaffold |
| Mineral wool + brick slip | £195–£260 per m²0% VAT | Heavier slip systems need extra fixings |
| Three-bed semi, full house | £11,800–£20,2000% VAT | 80–100 m² of wall, including scaffold |
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.
Mineral wool EWI in Lisburn: questions
Can mineral wool EWI have a brick finish?
Yes. Brick slips can be bonded over mineral wool systems designed for them, with additional fixings for the extra weight.
Is mineral wool better than EPS?
Not always better — different. Mineral wool wins on fire performance, breathability and acoustics; EPS wins on cost, weight and thinner boards for the same U-value. The wall, the building height and your priorities decide it.
Is mineral wool needed for a bungalow?
Rarely for fire reasons. It may still be chosen on a damp-prone solid wall where a vapour-open build-up is wanted.
Do you cover Lisburn?
Yes — we survey and quote mineral wool external wall insulation in Lisburn (BT27) and nearby Belfast, Castlereagh and Newtownabbey, with a fixed written price before any work starts.