Wood fibre EWI · Berkshire
Wood fibre insulation for older homes in Crowthorne
From Crowthorne to Sandhurst, we price wood fibre external wall insulation after a measured survey — no guesswork, and no work starts until the price is agreed in writing. If your home in Crowthorne is in a conservation area, we check the council's position on render before suggesting wood fibre EWI.
- Free survey in RG45 and nearby
- Guide price from £150 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Crowthorne
Postcode, service and a phone number is all we need.
Included as standard
- Thicker than foam for the same U-value
- Often the most suitable EWI where planning allows on older properties
- Vapour-open and hygroscopic — buffers moisture rather than trapping it
- Compatible with lime renders used on traditional buildings
Crowthorne: walls, weather and approvals
We also cover Sandhurst and Yateley, close to Crowthorne. Crowthorne sits around 10 miles from Reading. Homes across the South East range from inter-war semis and post-war estates, which are mostly cavity-walled, to older solid-walled cottages and Victorian town terraces.
Much of Berkshire sits in the lower wind-driven rain exposure bands, which keeps the choice of finishes wide — though hilltop, coastal and exposed gable walls can still need a tougher specification, so we check the actual site.
For period homes in Crowthorne, the survey looks closely at existing lime mortars and any cement patching that may trap moisture.
- Postcode district
- RG45
- County or area
- Berkshire
- Nation
- England
- Nearby
- Sandhurst, Yateley, Camberley, Wokingham
Planning and building control in England
For a house in Crowthorne, external insulation or render is often permitted development if it looks similar to the existing walls; conservation areas, flats, commercial buildings and listed buildings need permission or consent, so we check your address first.
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 Crowthorne
| 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
Enquiry
Send your postcode and a few details.
Measured survey
Walls, damp, eaves, cills and services recorded.
Written price
A fixed price with the specification attached.
Work and handover
Installed, inspected and documents handed over.
Wood fibre EWI in Crowthorne: 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.
Does wood fibre need a lime render?
It needs the render specified by the system manufacturer, which is usually lime or mineral based.
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.
Do you cover Crowthorne?
Yes — we survey and quote wood fibre external wall insulation in Crowthorne (RG45) and nearby Sandhurst, Yateley and Camberley, with a fixed written price before any work starts.