EPS insulation · Greater London
EPS external wall insulation in Carshalton
From Carshalton to Wallington, we price EPS external wall insulation after a measured survey — no guesswork, and no work starts until the price is agreed in writing. EPS is a common choice for two-storey houses, mainly on cost and weight, and we price it alongside mineral wool for homes in Carshalton.
- Free survey in SM5 and nearby
- Guide price from £105 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Carshalton
Postcode, service and a phone number is all we need.
What the job covers
- Grey graphite EPS reaches a given U-value with a thinner board
- Thermal conductivity around 0.031–0.038 W/mK depending on grade
- Used on low-rise houses; combustible, so not for taller buildings
- Easy to shape around bays, arches and reveals
What we look for in Carshalton
Surveys in Carshalton also cover the surrounding SM5 district and towns such as Wallington and Sutton. London's housing includes a large stock of Victorian and Edwardian solid-wall terraces, inter-war semis and post-war blocks, and conservation areas cover many streets — so planning is often the first question for external work.
Much of Greater London 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.
Where eaves are shallow on a house in Carshalton, grey EPS can sometimes avoid the cost of extending the roofline.
- Postcode district
- SM5
- County or area
- Greater London
- Nation
- England
- Nearby
- Wallington, Sutton, Mitcham, Morden
Planning and building control in England
Before quoting in Carshalton, 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.
When is EPS the right choice?
EPS suits most two-storey houses, bungalows and park homes where the wall is sound and there are no fire-height restrictions. It is a good fit where eaves are shallow, because grey EPS can hit the target with less thickness. On buildings with a storey 11 metres or more above ground, or where the guidance asks for non-combustible materials, mineral wool is used instead.
EPS external wall insulation prices in Carshalton
| 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 Carshalton: questions
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.
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 Carshalton?
Yes — we survey and quote EPS external wall insulation in Carshalton (SM5) and nearby Wallington, Sutton and Mitcham, with a fixed written price before any work starts.