Wood fibre EWI · Berkshire
Wood fibre insulation for older homes in Slough
Quotes for wood fibre external wall insulation in Slough list the system, the detailing and the VAT position in writing, so you know exactly what's included. If your home in Slough is in a conservation area, we check the council's position on render before suggesting wood fibre EWI.
- Free survey in SL1 and nearby
- Guide price from £150 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Slough
Postcode, service and a phone number is all we need.
Part of every quote
- Thicker than foam for the same U-value
- Made from a renewable material with low embodied carbon
- Vapour-open and hygroscopic — buffers moisture rather than trapping it
- Often the most suitable EWI where planning allows on older properties

Before we quote in Slough
Surveys in Slough also cover the surrounding SL1 district and towns such as Windsor and Maidenhead. Slough is about 17 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 Slough, the survey looks closely at existing lime mortars and any cement patching that may trap moisture.
- Postcode district
- SL1
- County or area
- Berkshire
- Nation
- England
- Nearby
- Windsor, Maidenhead, Gerrards Cross, Uxbridge
Approvals in England
Before quoting in Slough, 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 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 Slough
| 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
Get a guide price
Try the online quote tool for a ballpark figure.
Book the survey
A visit at a time that suits you.
Agree the quote
Nothing starts until you've signed the written price.
We do the work
Planned around weather, with you kept informed.
Wood fibre EWI in Slough: 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 Slough?
Yes — we survey and quote wood fibre external wall insulation in Slough (SL1) and nearby Windsor, Maidenhead and Gerrards Cross, with a fixed written price before any work starts.