Wood fibre EWI · West Glamorgan
Wood fibre insulation for older homes in Gorseinon
Looking for wood fibre external wall insulation in Gorseinon? We survey homes across Gorseinon and the SA4 area, then give you a fixed written price before any work starts. For older stone and early brick properties in Gorseinon, we look at a wood fibre and lime build-up first.
- Free survey in SA4 and nearby
- Guide price from £150 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Gorseinon
Postcode, service and a phone number is all we need.
What's included
- 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
- Thicker than foam for the same U-value
Local considerations in Gorseinon
We also cover Llanelli and Swansea, close to Gorseinon. It's roughly 5 miles from Gorseinon 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.
For period homes in Gorseinon, the survey looks closely at existing lime mortars and any cement patching that may trap moisture.
- Postcode district
- SA4
- County or area
- West Glamorgan
- Nation
- Wales
- Nearby
- Llanelli, Swansea, Ammanford, Briton Ferry
Wales: planning and regulations
We check Gorseinon addresses for conservation areas and listing before quoting, because Welsh permitted development rules don't cover every external change.
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.
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 Gorseinon
| 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%.
How it works
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 Gorseinon: questions
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.
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 Gorseinon?
Yes — we survey and quote wood fibre external wall insulation in Gorseinon (SA4) and nearby Llanelli, Swansea and Ammanford, with a fixed written price before any work starts.