Mineral wool EWI · Highland
Mineral wool external wall insulation in Thurso
Homeowners and landlords in Thurso can get a free survey and a fixed written quote for mineral wool external wall insulation, covering KW14 and the surrounding area. Older solid-walled homes in Thurso can suit a vapour-open mineral wool build-up better than foam; the survey checks the wall first.
- Free survey in KW14 and nearby
- Guide price from £125 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Thurso
Postcode, service and a phone number is all we need.
What you get
- Finished in mineral or silicone render, or brick slip
- Better sound reduction than foam boards
- Vapour-open, so moisture in solid walls can dry outwards
- Non-combustible board (typically Euroclass A1 or A2-s1,d0 as part of the system)

What we look for in Thurso
We cover Thurso and nearby Wick, Kirkwall and Lossiemouth. Thurso is about 81 miles from Inverness. The Highlands and Islands have many exposed stone and harled homes, timber-framed houses and scattered rural properties.
Parts of Highland 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.
For homes in Thurso near busy roads, mineral wool's sound reduction can be a reason to choose it.
- Postcode district
- KW14
- County or area
- Highland
- Nation
- Scotland
- Nearby
- Wick, Kirkwall, Lossiemouth, Elgin
Planning and building control in Scotland
Scottish householder rules mean many Thurso jobs that change the outside of a house need a planning application; we confirm the position before quoting.
Scotland's building standards cover changes to external wall construction; we check whether your job in Thurso needs a warrant.
Scotland restricts combustible cladding on buildings with a storey more than 11 metres above ground, so taller buildings get non-combustible systems.
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 Thurso
| 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 Thurso: questions
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.
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 Thurso?
Yes — we survey and quote mineral wool external wall insulation in Thurso (KW14) and nearby Wick, Kirkwall and Lossiemouth, with a fixed written price before any work starts.