EPS insulation · Highland
EPS external wall insulation in Fort William
EPS external wall insulation in Fort William: free survey, written specification and a fixed price, with the details that keep walls dry planned from the start. Where eaves are shallow on a house in Fort William, grey EPS can sometimes avoid the cost of extending the roofline.
- Free survey in PH33
- Guide price from £105 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Fort William
Postcode, service and a phone number is all we need.
Included as standard
- Thermal conductivity around 0.031–0.038 W/mK depending on grade
- Light boards mean fewer fixings and a faster install
- Used on low-rise houses; combustible, so not for taller buildings
- Easy to shape around bays, arches and reveals

Fort William: walls, weather and approvals
We cover Fort William and the wider Highland; 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 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.
We compare EPS against mineral wool for each Fort William enquiry rather than assuming one board suits every wall.
- Postcode district
- PH33
- County or area
- Highland
- Nation
- Scotland
Approvals in Scotland
In Scotland, permitted development for external wall changes is narrower, so in Fort William we check with the council's planning team where the appearance changes, and always for flats, tenements and conservation areas.
Scotland's building standards cover changes to external wall construction; we check whether your job in Fort William needs a warrant.
How thick does the board need to be?
On a 225mm solid brick wall, around 90mm of grey EPS or 100–110mm of white EPS typically gets close to 0.30 W/m²K. Stone walls, concrete panels and hollow-block walls start from different points, so the system supplier's calculation for your wall sets the final thickness.
EPS external wall insulation prices in Fort William
| Item | Guide price | Notes |
|---|---|---|
| EPS + silicone render | £105–£145 per m²0% VAT | Excluding scaffold |
| Grey EPS uplift | +£4–£8 per m²0% VAT | Thinner board for the same U-value |
| Bungalow, full house | £6,700–£12,8000% VAT | 55–75 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
Enquiry
Send your postcode and a few details.
Measured survey
Walls, damp, eaves, cills and services recorded.
Written price
A fixed price with the specification attached.
Work and handover
Installed, inspected and documents handed over.
EPS insulation in Fort William: questions
White or grey EPS?
Grey graphite EPS insulates better per millimetre, so it is the pick where space is tight at the eaves or around windows. White EPS is slightly cheaper and works well where the extra thickness isn't a problem.
How long does EPS last on a wall?
The board itself doesn't degrade when protected by the render system. Service life depends on the render, sealants and detailing, typically 25–30 years or more with maintenance.
Is EPS insulation safe on a house?
EPS is used inside render systems that are fire-tested as a whole. On low-rise houses it is widely used. On taller buildings, or where guidance calls for non-combustible materials, mineral wool systems are specified instead.
Do you cover Fort William?
Yes — we survey and quote EPS external wall insulation in Fort William (PH33); island and remote addresses are surveyed by arrangement, with a fixed written price before any work starts.