Wood fibre EWI · Buckinghamshire
Wood fibre insulation for older homes in Gerrards Cross
Wood fibre insulation for older homes in Gerrards Cross: free survey, written specification and a fixed price, with the details that keep walls dry planned from the start. For older stone and early brick properties in Gerrards Cross, we look at a wood fibre and lime build-up first.
- Free survey in SL9 and nearby
- Guide price from £150 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Gerrards Cross
Postcode, service and a phone number is all we need.
Part of every quote
- Often the most suitable EWI where planning allows on older properties
- Made from a renewable material with low embodied carbon
- Compatible with lime renders used on traditional buildings
- High density gives good protection from summer heat

Local considerations in Gerrards Cross
We also cover Chalfont St Peter and Uxbridge, close to Gerrards Cross. Gerrards Cross sits around 33 miles from Milton Keynes. 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 Buckinghamshire 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.
If your home in Gerrards Cross is in a conservation area, we check the council's position on render before suggesting wood fibre EWI.
- Postcode district
- SL9
- County or area
- Buckinghamshire
- Nation
- England
- Nearby
- Chalfont St Peter, Uxbridge, Slough, Ruislip
Permissions in England
For a house in Gerrards Cross, 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.
Insulating or re-rendering more than half of a wall's area brings in Part L of the Building Regulations, so building control is notified and the wall is upgraded to about 0.30 W/m²K where practical.
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 Gerrards Cross
| 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 Gerrards Cross: questions
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.
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 Gerrards Cross?
Yes — we survey and quote wood fibre external wall insulation in Gerrards Cross (SL9) and nearby Chalfont St Peter, Uxbridge and Slough, with a fixed written price before any work starts.