Mineral wool EWI · Orkney, Shetland and the Western Isles
Mineral wool external wall insulation in Lerwick
If you're planning mineral wool external wall insulation in Lerwick, start with a free survey: we measure, check the walls and confirm planning and building control for your address. Older solid-walled homes in Lerwick can suit a vapour-open mineral wool build-up better than foam; the survey checks the wall first.
- Free survey in ZE1
- Guide price from £125 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Lerwick
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

Local considerations in Lerwick
We cover Lerwick and the wider Orkney, Shetland and the Western Isles; island and remote addresses are surveyed by arrangement. The Highlands and Islands have many exposed stone and harled homes, timber-framed houses and scattered rural properties.
Parts of Orkney, Shetland and the Western Isles 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 Lerwick near busy roads, mineral wool's sound reduction can be a reason to choose it.
- Postcode district
- ZE1
- County or area
- Orkney, Shetland and the Western Isles
- Nation
- Scotland
Permissions in Scotland
For Lerwick properties, flats and tenements need planning permission for external insulation, and a noticeable change of finish on a house often does too under Scottish rules.
Scotland's building standards cover changes to external wall construction; we check whether your job in Lerwick 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 Lerwick
| 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
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.
Mineral wool EWI in Lerwick: questions
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.
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 Lerwick?
Yes — we survey and quote mineral wool external wall insulation in Lerwick (ZE1); island and remote addresses are surveyed by arrangement, with a fixed written price before any work starts.