Wood fibre EWI · Greater London
Wood fibre insulation for older homes in Mitcham
Looking for wood fibre external wall insulation in Mitcham? We survey homes across Mitcham and the CR4 area, then give you a fixed written price before any work starts. If your home in Mitcham is in a conservation area, we check the council's position on render before suggesting wood fibre EWI.
- Free survey in CR4 and nearby
- Guide price from £150 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Mitcham
Postcode, service and a phone number is all we need.
Included as standard
- Vapour-open and hygroscopic — buffers moisture rather than trapping it
- Often the most suitable EWI where planning allows on older properties
- Thicker than foam for the same U-value
- High density gives good protection from summer heat
What we look for in Mitcham
We cover Mitcham and nearby Morden, Wimbledon and Streatham. London's housing includes a large stock of Victorian and Edwardian solid-wall terraces, inter-war semis and post-war blocks, and conservation areas cover many streets — so planning is often the first question for external work.
Much of Greater London 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 Mitcham, the survey looks closely at existing lime mortars and any cement patching that may trap moisture.
- Postcode district
- CR4
- County or area
- Greater London
- Nation
- England
- Nearby
- Morden, Wimbledon, Streatham, Carshalton
Permissions in England
Before quoting in Mitcham, 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 Mitcham
| 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%.
From enquiry to finished wall
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 Mitcham: 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 Mitcham?
Yes — we survey and quote wood fibre external wall insulation in Mitcham (CR4) and nearby Morden, Wimbledon and Streatham, with a fixed written price before any work starts.