EPS insulation · Dorset
EPS external wall insulation in Dorchester
Need EPS external wall insulation in Dorchester? Tell us about the property and we'll arrange a free survey and a written quote. EPS is a common choice for two-storey houses, mainly on cost and weight, and we price it alongside mineral wool for homes in Dorchester.
- Free survey in DT1 and nearby
- Guide price from £105 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Dorchester
Postcode, service and a phone number is all we need.
Part of every quote
- Grey graphite EPS reaches a given U-value with a thinner board
- Easy to shape around bays, arches and reveals
- Thermal conductivity around 0.031–0.038 W/mK depending on grade
- Light boards mean fewer fixings and a faster install
Homes and walls in Dorchester
We also cover Weymouth and Bridport, close to Dorchester. It's roughly 24 miles from Dorchester to Bournemouth, the largest town in Dorset. The South West has many stone and solid-walled cottages, exposed coastal properties and a share of post-war system-built houses, including types such as the Cornish Unit.
Exposure to wind-driven rain varies across Dorset: sheltered town streets fare better than walls on high ground or facing the prevailing weather, and the render, beads and cill details are chosen with that in mind.
Where eaves are shallow on a house in Dorchester, grey EPS can sometimes avoid the cost of extending the roofline.
- Postcode district
- DT1
- County or area
- Dorset
- Nation
- England
- Nearby
- Weymouth, Bridport, Yeovil, Poole
Permissions in England
For a house in Dorchester, external insulation or render is often permitted development if it looks similar to the existing walls; conservation areas, flats, commercial buildings and listed buildings need permission or consent, so we check your address first.
Building control applies once more than half of a wall is insulated or re-rendered, or more than a quarter of the whole building envelope, and your written quote says how that's handled.
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 Dorchester
| 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
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 Dorchester: 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.
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.
Do you cover Dorchester?
Yes — we survey and quote EPS external wall insulation in Dorchester (DT1) and nearby Weymouth, Bridport and Yeovil, with a fixed written price before any work starts.