Mineral wool EWI · County Armagh
Mineral wool external wall insulation in Portadown
If you're planning mineral wool external wall insulation in Portadown, start with a free survey: we measure, check the walls and confirm planning and building control for your address. On blocks and taller buildings in Portadown, mineral wool is the default because of the fire guidance for external walls.
- Free survey in BT62 and nearby
- Guide price from £125 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Portadown
Postcode, service and a phone number is all we need.
Part of every quote
- Heavier than EPS, so more fixings and careful handling
- Used on blocks of flats and buildings with storeys above 11m
- Better sound reduction than foam boards
- Vapour-open, so moisture in solid walls can dry outwards
What we look for in Portadown
We also cover Craigavon and Lurgan, close to Portadown. It's roughly 3 miles from Portadown to Craigavon, the largest town in County Armagh. Northern Ireland has many rendered and pebble-dashed homes, older solid-walled rural houses, and estates built by the Housing Executive.
Exposure to wind-driven rain varies across County Armagh: sheltered town streets fare better than walls on high ground or facing the prevailing weather, and the render, beads and cill details are chosen with that in mind.
For homes in Portadown near busy roads, mineral wool's sound reduction can be a reason to choose it.
- Postcode district
- BT62
- County or area
- County Armagh
- Nation
- Northern Ireland
- Nearby
- Craigavon, Lurgan, Banbridge, Armagh
Planning and building control in Northern Ireland
In Northern Ireland, permitted development is set by the 2015 Order; in Portadown, changing a house's external appearance, and any work on flats or listed buildings, may need permission, so we check with the council.
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.
Why choose mineral wool over EPS?
Two reasons come up most: fire and moisture. Mineral wool doesn't burn, which is why guidance for taller residential buildings points to non-combustible external wall materials. It is also vapour-open, so a solid wall that holds some moisture can keep drying outwards through the insulation and render.
The trade-offs are weight and cost. Slabs are denser, need more fixings and take longer to install, so the price per m² is higher than EPS.
Mineral wool external wall insulation prices in Portadown
| 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.
From enquiry to finished wall
Tell us about the property
Use the quote tool or form, or call. Photos help.
Free survey
We measure, check the walls and confirm approvals.
Fixed written quote
System, details, access, exclusions and VAT in writing.
Installation
Scheduled for suitable weather, with a clear programme.
Mineral wool EWI in Portadown: questions
Does mineral wool get wet?
It is water-repellent and protected by the render system. Like any insulation it must not be left exposed to rain during installation, so boards are covered and work stops in wet weather.
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.
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.
Do you cover Portadown?
Yes — we survey and quote mineral wool external wall insulation in Portadown (BT62) and nearby Craigavon, Lurgan and Banbridge, with a fixed written price before any work starts.