Wood fibre EWI · Somerset
Wood fibre insulation for older homes in Clevedon
Wood fibre insulation for older homes in Clevedon: free survey, written specification and a fixed price, with the details that keep walls dry planned from the start. For period homes in Clevedon, the survey looks closely at existing lime mortars and any cement patching that may trap moisture.
- Free survey in BS21 and nearby
- Guide price from £150 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Clevedon
Postcode, service and a phone number is all we need.
What the job covers
- Compatible with lime renders used on traditional buildings
- Made from a renewable material with low embodied carbon
- High density gives good protection from summer heat
- Often the most suitable EWI where planning allows on older properties

What we look for in Clevedon
We cover Clevedon and nearby Nailsea, Portishead and Weston-super-Mare. Clevedon is about 22 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.
If your home in Clevedon is in a conservation area, we check the council's position on render before suggesting wood fibre EWI.
- Postcode district
- BS21
- County or area
- Somerset
- Nation
- England
- Nearby
- Nailsea, Portishead, Weston-super-Mare, Kingswood
Planning and building control in England
For a house in Clevedon, 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.
Why do older walls need breathable insulation?
Stone and early brick walls were built with lime mortars and renders that let moisture in and out. Sealing them with impermeable materials can trap water in the wall, leading to damp and frost damage. Wood fibre keeps the build-up open to vapour, and its ability to absorb and release moisture helps the wall stay in balance.
Wood fibre insulation for older homes prices in Clevedon
| Item | Guide price | Notes |
|---|---|---|
| Wood fibre + lime render system | £150–£210 per m²0% VAT | Excluding scaffold |
| Cottage, about 90 m² of wall | £15,300–£22,1000% VAT | Including scaffold |
| Lime render only (no insulation) | £78–£132 per m²inc VAT | See lime render |
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. Prices include VAT at 20%.
What happens next
Tell us about the property
Use the quote tool or form, or call. Photos help.
Free survey
We measure, check the walls and confirm approvals.
Fixed written quote
System, details, access, exclusions and VAT in writing.
Installation
Scheduled for suitable weather, with a clear programme.
Wood fibre EWI in Clevedon: questions
Is wood fibre insulation fireproof?
No — it's a timber product. It chars rather than flaming readily, but it is combustible, so it's used on low-rise buildings within a tested system and never where non-combustible materials are required.
Can wood fibre go on a stone wall?
Yes, after levelling. Rubble stone is often uneven, so a levelling coat or adapted fixing method is used first.
Does wood fibre need a lime render?
It needs the render specified by the system manufacturer, which is usually lime or mineral based.
Do you cover Clevedon?
Yes — we survey and quote wood fibre external wall insulation in Clevedon (BS21) and nearby Nailsea, Portishead and Weston-super-Mare, with a fixed written price before any work starts.