Wood fibre EWI · West Glamorgan
Wood fibre insulation for older homes in Neath
Homeowners and landlords in Neath can get a free survey and a fixed written quote for wood fibre external wall insulation, covering SA7 and the surrounding area. For period homes in Neath, the survey looks closely at existing lime mortars and any cement patching that may trap moisture.
- Free survey in SA7 and nearby
- Guide price from £150 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Neath
Postcode, service and a phone number is all we need.
Included as standard
- Thicker than foam for the same U-value
- Compatible with lime renders used on traditional buildings
- Often the most suitable EWI where planning allows on older properties
- Vapour-open and hygroscopic — buffers moisture rather than trapping it

Before we quote in Neath
We cover Neath and nearby Briton Ferry, Port Talbot and Swansea. It's roughly 7 miles from Neath to Swansea, the largest town in West Glamorgan. 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.
If your home in Neath is in a conservation area, we check the council's position on render before suggesting wood fibre EWI.
- Postcode district
- SA7
- County or area
- West Glamorgan
- Nation
- Wales
- Nearby
- Briton Ferry, Port Talbot, Swansea, Maesteg
Planning and building control in Wales
Householder rules in Wales are similar to England's: in Neath, a similar-looking finish on a house is often permitted, but conservation areas, flats and listed buildings need permission or consent.
In Wales, insulating or re-rendering more than half of a wall's area is treated as renovating a thermal element under Approved Document L (Wales), so building control is involved before work starts.
What finish goes over wood fibre?
A lime-based or mineral render designed for the system, applied over a reinforcing base coat. Lime finishes give the softer, slightly irregular texture that suits cottages and older terraces.
Wood fibre insulation for older homes prices in Neath
| 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%.
From enquiry to finished wall
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 Neath: 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.
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.
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.
Do you cover Neath?
Yes — we survey and quote wood fibre external wall insulation in Neath (SA7) and nearby Briton Ferry, Port Talbot and Swansea, with a fixed written price before any work starts.