Mineral wool EWI · Cheshire
Mineral wool external wall insulation in Wilmslow
Need mineral wool external wall insulation in Wilmslow? Tell us about the property and we'll arrange a free survey and a written quote. Older solid-walled homes in Wilmslow can suit a vapour-open mineral wool build-up better than foam; the survey checks the wall first.
- Free survey in SK9 and nearby
- Guide price from £125 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Wilmslow
Postcode, service and a phone number is all we need.
Part of every quote
- Finished in mineral or silicone render, or brick slip
- Used on blocks of flats and buildings with storeys above 11m
- Better sound reduction than foam boards
- Heavier than EPS, so more fixings and careful handling
Before we quote in Wilmslow
As well as Wilmslow itself, we quote in Bramhall, Cheadle Hulme and Altrincham. It's roughly 15 miles from Wilmslow to Warrington, the largest town in Cheshire. The North West has one of the largest stocks of pre-1919 solid-wall terraces in England, alongside Pennine stone houses and post-war estates.
Exposure to wind-driven rain varies across Cheshire: 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 Wilmslow near busy roads, mineral wool's sound reduction can be a reason to choose it.
- Postcode district
- SK9
- County or area
- Cheshire
- Nation
- England
- Nearby
- Bramhall, Cheadle Hulme, Altrincham, Macclesfield
Permissions in England
For a house in Wilmslow, external insulation or render is often permitted development if it looks similar to the existing walls; conservation areas, flats, commercial buildings and listed buildings need permission or consent, so we check your address first.
Insulating or re-rendering more than half of a wall's area brings in Part L of the Building Regulations, so building control is notified and the wall is upgraded to about 0.30 W/m²K where practical.
On residential buildings with a storey 11 metres or more above ground, guidance points to non-combustible external wall materials, and combustible materials are banned in relevant buildings 18 metres and over, so we specify mineral wool systems there.
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 Wilmslow
| 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
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 Wilmslow: 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 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.
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 Wilmslow?
Yes — we survey and quote mineral wool external wall insulation in Wilmslow (SK9) and nearby Bramhall, Cheadle Hulme and Altrincham, with a fixed written price before any work starts.