Wood fibre EWI · West Sussex
Wood fibre insulation for older homes in Crawley
Looking for wood fibre external wall insulation in Crawley? We survey homes across Crawley and the RH11 area, then give you a fixed written price before any work starts. For period homes in Crawley, the survey looks closely at existing lime mortars and any cement patching that may trap moisture.
- Free survey in RH11 and nearby
- Guide price from £150 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Crawley
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
- High density gives good protection from summer heat
- Made from a renewable material with low embodied carbon
What we look for in Crawley
We cover Crawley and nearby Horley, Horsham and East Grinstead. 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.
Exposure to wind-driven rain varies across West Sussex: 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 Crawley is in a conservation area, we check the council's position on render before suggesting wood fibre EWI.
- Postcode district
- RH11
- County or area
- West Sussex
- Nation
- England
- Nearby
- Horley, Horsham, East Grinstead, Reigate
Planning and building control in England
For a house in Crawley, 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 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 Crawley
| 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 Crawley: 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.
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.
Do you cover Crawley?
Yes — we survey and quote wood fibre external wall insulation in Crawley (RH11) and nearby Horley, Horsham and East Grinstead, with a fixed written price before any work starts.