Wood fibre EWI · Cornwall
Wood fibre insulation for older homes in Penzance
Wood fibre insulation for older homes in Penzance: free survey, written specification and a fixed price, with the details that keep walls dry planned from the start. For period homes in Penzance, the survey looks closely at existing lime mortars and any cement patching that may trap moisture.
- Free survey in TR18 and nearby
- Guide price from £150 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Penzance
Postcode, service and a phone number is all we need.
What you get
- Compatible with lime renders used on traditional buildings
- Often the most suitable EWI where planning allows on older properties
- Vapour-open and hygroscopic — buffers moisture rather than trapping it
- High density gives good protection from summer heat
What we look for in Penzance
As well as Penzance itself, we quote in Camborne, Redruth and Falmouth. It's roughly 16 miles from Penzance to Redruth, the largest town in Cornwall. The South West has many stone and solid-walled cottages, exposed coastal properties and a share of post-war system-built houses, including types such as the Cornish Unit.
Parts of Cornwall 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 Penzance, we look at a wood fibre and lime build-up first.
- Postcode district
- TR18
- County or area
- Cornwall
- Nation
- England
- Nearby
- Camborne, Redruth, Falmouth, Truro
Permissions in England
Before quoting in Penzance, we check whether the property is in a conservation area, under an Article 4 direction or listed, because that decides whether changing the outside needs planning permission.
If the work covers more than half of a wall, or a quarter of the building's whole envelope, it counts as renovating a thermal element, with a target of about 0.30 W/m²K where feasible.
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 Penzance
| 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 Penzance: 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.
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 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 Penzance?
Yes — we survey and quote wood fibre external wall insulation in Penzance (TR18) and nearby Camborne, Redruth and Falmouth, with a fixed written price before any work starts.