Wood fibre EWI · Clwyd
Wood fibre insulation for older homes in Deeside
Homeowners and landlords in Deeside can get a free survey and a fixed written quote for wood fibre external wall insulation, covering CH5 and the surrounding area. For older stone and early brick properties in Deeside, we look at a wood fibre and lime build-up first.
- Free survey in CH5 and nearby
- Guide price from £150 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Deeside
Postcode, service and a phone number is all we need.
Included as standard
- Made from a renewable material with low embodied carbon
- Thicker than foam for the same U-value
- High density gives good protection from summer heat
- Compatible with lime renders used on traditional buildings

Deeside: walls, weather and approvals
Surveys in Deeside also cover the surrounding CH5 district and towns such as Hawarden and Buckley. It's roughly 11 miles from Deeside to Wrexham, the largest town in Clwyd. North Wales has many solid stone and slate-built homes, Victorian seaside terraces and post-war council estates.
Exposure to wind-driven rain varies across Clwyd: sheltered town streets fare better than walls on high ground or facing the prevailing weather, and the render, beads and cill details are chosen with that in mind.
If your home in Deeside is in a conservation area, we check the council's position on render before suggesting wood fibre EWI.
- Postcode district
- CH5
- County or area
- Clwyd
- Nation
- Wales
- Nearby
- Hawarden, Buckley, Flint, Wrexham
Planning and building control in Wales
For homes in Deeside, the local planning authority decides any borderline cases; changing a brick house to render, or work on flats, usually needs an application in Wales.
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 Deeside
| 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 Deeside: 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 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 Deeside?
Yes — we survey and quote wood fibre external wall insulation in Deeside (CH5) and nearby Hawarden, Buckley and Flint, with a fixed written price before any work starts.