Mineral wool EWI · Orkney, Shetland and the Western Isles
Mineral wool external wall insulation in Stornoway
Need mineral wool external wall insulation in Stornoway? Tell us about the property and we'll arrange a free survey and a written quote. On blocks and taller buildings in Stornoway, mineral wool is the default because of the fire guidance for external walls.
- Free survey in HS1
- Guide price from £125 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Stornoway
Postcode, service and a phone number is all we need.
Part of every quote
- Heavier than EPS, so more fixings and careful handling
- Vapour-open, so moisture in solid walls can dry outwards
- Used on blocks of flats and buildings with storeys above 11m
- Non-combustible board (typically Euroclass A1 or A2-s1,d0 as part of the system)
What we look for in Stornoway
Surveys in Stornoway (HS1) are arranged around travel to the wider Orkney, Shetland and the Western Isles. 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.
Older solid-walled homes in Stornoway can suit a vapour-open mineral wool build-up better than foam; the survey checks the wall first.
- Postcode district
- HS1
- County or area
- Orkney, Shetland and the Western Isles
- Nation
- Scotland
Permissions in Scotland
In Scotland, permitted development for external wall changes is narrower, so in Stornoway we check with the council's planning team where the appearance changes, and always for flats, tenements and conservation areas.
Over-cladding work in Scotland often needs a building warrant from the council's building standards service, with Section 6 of the Technical Handbooks setting insulation benchmarks.
Scotland restricts combustible cladding on buildings with a storey more than 11 metres above ground, so taller buildings get non-combustible systems.
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 Stornoway
| 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.
What happens next
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 Stornoway: 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.
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 Stornoway?
Yes — we survey and quote mineral wool external wall insulation in Stornoway (HS1); island and remote addresses are surveyed by arrangement, with a fixed written price before any work starts.