Wood fibre EWI · Powys
Wood fibre insulation for older homes in Newtown
Need wood fibre external wall insulation in Newtown? Tell us about the property and we'll arrange a free survey and a written quote. For period homes in Newtown, the survey looks closely at existing lime mortars and any cement patching that may trap moisture.
- Free survey in SY16 and nearby
- Guide price from £150 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Newtown
Postcode, service and a phone number is all we need.
What's included
- Thicker than foam for the same U-value
- Compatible with lime renders used on traditional buildings
- Vapour-open and hygroscopic — buffers moisture rather than trapping it
- Made from a renewable material with low embodied carbon
Newtown: walls, weather and approvals
As well as Newtown itself, we quote in Welshpool, Llandrindod Wells and Aberystwyth. Mid Wales is largely rural, with stone farmhouses, cottages and market-town terraces, many of them solid-walled.
Parts of Powys 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 Newtown, we look at a wood fibre and lime build-up first.
- Postcode district
- SY16
- County or area
- Powys
- Nation
- Wales
- Nearby
- Welshpool, Llandrindod Wells, Aberystwyth, Rhosllanerchrugog
Approvals in Wales
Householder rules in Wales are similar to England's: in Newtown, 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 about listed buildings and conservation areas?
EWI on a listed building needs listed building consent and is often refused where the outside appearance matters. In conservation areas, rendering or cladding a house normally needs planning permission. Wood fibre and lime are more likely to be acceptable than foam and acrylic, but the council decides. We check before quoting.
Wood fibre insulation for older homes prices in Newtown
| 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
Get a guide price
Try the online quote tool for a ballpark figure.
Book the survey
A visit at a time that suits you.
Agree the quote
Nothing starts until you've signed the written price.
We do the work
Planned around weather, with you kept informed.
Wood fibre EWI in Newtown: 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.
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.
Do you cover Newtown?
Yes — we survey and quote wood fibre external wall insulation in Newtown (SY16) and nearby Welshpool, Llandrindod Wells and Aberystwyth, with a fixed written price before any work starts.