EPS insulation · Hertfordshire
EPS external wall insulation in Stevenage
EPS external wall insulation in Stevenage: free survey, written specification and a fixed price, with the details that keep walls dry planned from the start. We compare EPS against mineral wool for each Stevenage enquiry rather than assuming one board suits every wall.
- Free survey in SG1 and nearby
- Guide price from £105 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Stevenage
Postcode, service and a phone number is all we need.
What the job covers
- Used on low-rise houses; combustible, so not for taller buildings
- Thermal conductivity around 0.031–0.038 W/mK depending on grade
- Finished in silicone, acrylic, mineral render or brick slip
- Light boards mean fewer fixings and a faster install
Homes and walls in Stevenage
We also cover Hitchin and Letchworth Garden City, close to Stevenage. Stevenage is about 19 miles from Watford. The East of England has a mix of post-war estates, inter-war semis and older solid brick and flint cottages, with some system-built council homes on post-war estates.
Much of Hertfordshire sits in the lower wind-driven rain exposure bands, which keeps the choice of finishes wide — though hilltop, coastal and exposed gable walls can still need a tougher specification, so we check the actual site.
EPS is a common choice for two-storey houses, mainly on cost and weight, and we price it alongside mineral wool for homes in Stevenage.
- Postcode district
- SG1
- County or area
- Hertfordshire
- Nation
- England
- Nearby
- Hitchin, Letchworth Garden City, Welwyn Garden City, Harpenden
Planning and building control in England
For a house in Stevenage, 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.
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 Stevenage
| 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
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 Stevenage: questions
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.
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 Stevenage?
Yes — we survey and quote EPS external wall insulation in Stevenage (SG1) and nearby Hitchin, Letchworth Garden City and Welwyn Garden City, with a fixed written price before any work starts.