EPS insulation · Lancashire
EPS external wall insulation in Darwen
If you're planning EPS external wall insulation in Darwen, start with a free survey: we measure, check the walls and confirm planning and building control for your address. We compare EPS against mineral wool for each Darwen enquiry rather than assuming one board suits every wall.
- Free survey in BB3 and nearby
- Guide price from £105 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Darwen
Postcode, service and a phone number is all we need.
Included as standard
- Finished in silicone, acrylic, mineral render or brick slip
- Light boards mean fewer fixings and a faster install
- Thermal conductivity around 0.031–0.038 W/mK depending on grade
- Grey graphite EPS reaches a given U-value with a thinner board
Darwen: walls, weather and approvals
As well as Darwen itself, we quote in Blackburn, Accrington and Chorley. Darwen sits around 11 miles from Preston. 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.
Parts of Lancashire 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.
Where eaves are shallow on a house in Darwen, grey EPS can sometimes avoid the cost of extending the roofline.
- Postcode district
- BB3
- County or area
- Lancashire
- Nation
- England
- Nearby
- Blackburn, Accrington, Chorley, Rawtenstall
Permissions in England
Before quoting in Darwen, we check whether the property is in a conservation area, under an Article 4 direction or listed, because that decides whether changing the outside needs planning permission.
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.
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 Darwen
| 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.
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.
EPS insulation in Darwen: questions
Will woodpeckers damage EPS?
It happens occasionally, especially near woodland. Damage is to the render and board surface and is repaired with a mesh patch and colour-matched finish.
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.
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.
Do you cover Darwen?
Yes — we survey and quote EPS external wall insulation in Darwen (BB3) and nearby Blackburn, Accrington and Chorley, with a fixed written price before any work starts.