Wood fibre EWI · Dyfed
Wood fibre insulation for older homes in Llanelli
If you're planning wood fibre external wall insulation in Llanelli, start with a free survey: we measure, check the walls and confirm planning and building control for your address. If your home in Llanelli is in a conservation area, we check the council's position on render before suggesting wood fibre EWI.
- Free survey in SA15 and nearby
- Guide price from £150 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Llanelli
Postcode, service and a phone number is all we need.
What you get
- Vapour-open and hygroscopic — buffers moisture rather than trapping it
- Compatible with lime renders used on traditional buildings
- High density gives good protection from summer heat
- Made from a renewable material with low embodied carbon
Local considerations in Llanelli
We cover Llanelli and nearby Gorseinon, Swansea and Ammanford. West Wales has a high share of older solid-walled and stone homes, many in exposed coastal or rural settings.
Parts of Dyfed 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 Llanelli, we look at a wood fibre and lime build-up first.
- Postcode district
- SA15
- County or area
- Dyfed
- Nation
- Wales
- Nearby
- Gorseinon, Swansea, Ammanford, Carmarthen
Permissions in Wales
Householder rules in Wales are similar to England's: in Llanelli, 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.
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 Llanelli
| 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 Llanelli: questions
Does wood fibre need a lime render?
It needs the render specified by the system manufacturer, which is usually lime or mineral based.
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.
Do you cover Llanelli?
Yes — we survey and quote wood fibre external wall insulation in Llanelli (SA15) and nearby Gorseinon, Swansea and Ammanford, with a fixed written price before any work starts.