Wood fibre EWI · Scotland
Wood fibre insulation for older homes in Perth and Kinross
Quotes for wood fibre external wall insulation in Perth and Kinross set out the system, detailing, access and VAT position in writing. For period homes in Perth and Kinross, the survey looks closely at existing lime mortars and any cement patching that may trap moisture.
- Free survey and fixed written price
- Guide price from £150 per m² + scaffold, 0% VAT
- Planning and building control checked for Scotland
Free survey in Perth and Kinross
Tell us the postcode and what you need.
What the job covers
- Thicker than foam for the same U-value
- Often the most suitable EWI where planning allows on older properties
- High density gives good protection from summer heat
- Made from a renewable material with low embodied carbon
- Vapour-open and hygroscopic — buffers moisture rather than trapping it

Local considerations in Perth and Kinross
Tayside has stone tenements and terraces in the towns, harled cottages and post-war estates.
Exposure to wind-driven rain varies across Perth and Kinross: 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 Perth and Kinross is in a conservation area, we check the council's position on render before suggesting wood fibre EWI.
- Nation
- Scotland
- Region
- Tayside
- Towns covered
- Perth, Blairgowrie, Crieff
- Guide price
- From £150 per m² + scaffold · 0% VAT
Planning and building control in Scotland
In Scotland, householder permitted development rights are set by the Scottish GPDO and are narrower for external wall changes; insulating flats or tenements, changing the appearance of a house noticeably, or working in a conservation area usually needs planning permission. Listed buildings need listed building consent. Ask your council's planning team before committing.
Work that alters an external wall's construction is covered by the building standards system; many over-cladding projects need a building warrant from the council's building standards team, and Section 6 (Energy) of the Technical Handbooks sets insulation benchmarks.
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 Perth and Kinross
| 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 Perth and Kinross: 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 all of Perth and Kinross?
Yes. We survey and quote wood fibre external wall insulation across Perth and Kinross, including Perth, Blairgowrie, Crieff.
Do I need planning permission in Scotland?
In Scotland, householder permitted development rights are set by the Scottish GPDO and are narrower for external wall changes; insulating flats or tenements, changing the appearance of a house noticeably, or working in a conservation area usually needs planning permission. We check your address before quoting.