Wood fibre EWI · West Glamorgan
Wood fibre insulation for older homes in Port Talbot
If you're planning wood fibre external wall insulation in Port Talbot, start with a free survey: we measure, check the walls and confirm planning and building control for your address. For period homes in Port Talbot, the survey looks closely at existing lime mortars and any cement patching that may trap moisture.
- Free survey in SA13 and nearby
- Guide price from £150 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Port Talbot
Postcode, service and a phone number is all we need.
What's included
- Often the most suitable EWI where planning allows on older properties
- Thicker than foam for the same U-value
- Vapour-open and hygroscopic — buffers moisture rather than trapping it
- Made from a renewable material with low embodied carbon

What we look for in Port Talbot
We also cover Briton Ferry and Neath, close to Port Talbot. Port Talbot is about 7 miles from Swansea. South Wales has long runs of solid-wall valley terraces, Victorian and Edwardian town housing and post-war council estates.
Parts of West Glamorgan fall in the higher wind-driven rain exposure bands, especially coastal and upland sites, so render specification, movement joints and detailing at cills, verges and the base of the wall matter more than usual.
For older stone and early brick properties in Port Talbot, we look at a wood fibre and lime build-up first.
- Postcode district
- SA13
- County or area
- West Glamorgan
- Nation
- Wales
- Nearby
- Briton Ferry, Neath, Maesteg, Swansea
Planning and building control in Wales
Householder rules in Wales are similar to England's: in Port Talbot, a similar-looking finish on a house is often permitted, but conservation areas, flats and listed buildings need permission or consent.
Welsh Building Regulations expect walls to be upgraded when a substantial area is renewed, and building control signs the work off.
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 Port Talbot
| 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 Port Talbot: questions
Is wood fibre worth the extra cost?
On older solid walls the main benefit is moisture safety rather than raw U-value. If the wall needs to breathe, the cheaper option can cost more later.
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.
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 Port Talbot?
Yes — we survey and quote wood fibre external wall insulation in Port Talbot (SA13) and nearby Briton Ferry, Neath and Maesteg, with a fixed written price before any work starts.