EPS insulation · Somerset
EPS external wall insulation in Nailsea
Looking for EPS external wall insulation in Nailsea? We survey homes across Nailsea and the BS48 area, then give you a fixed written price before any work starts. We compare EPS against mineral wool for each Nailsea enquiry rather than assuming one board suits every wall.
- Free survey in BS48 and nearby
- Guide price from £105 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Nailsea
Postcode, service and a phone number is all we need.
What you get
- Used on low-rise houses; combustible, so not for taller buildings
- Grey graphite EPS reaches a given U-value with a thinner board
- Easy to shape around bays, arches and reveals
- Light boards mean fewer fixings and a faster install

Before we quote in Nailsea
Surveys in Nailsea also cover the surrounding BS48 district and towns such as Portishead and Clevedon. Nailsea sits around 18 miles from Bath. 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 Somerset: 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 Nailsea, grey EPS can sometimes avoid the cost of extending the roofline.
- Postcode district
- BS48
- County or area
- Somerset
- Nation
- England
- Nearby
- Portishead, Clevedon, Kingswood, Weston-super-Mare
Planning and building control in England
For a house in Nailsea, 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.
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 Nailsea
| 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.
From enquiry to finished wall
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 Nailsea: 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.
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.
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.
Do you cover Nailsea?
Yes — we survey and quote EPS external wall insulation in Nailsea (BS48) and nearby Portishead, Clevedon and Kingswood, with a fixed written price before any work starts.