Wood fibre EWI · Greater London
Wood fibre insulation for older homes in New Malden
Wood fibre insulation for older homes in New Malden: 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 New Malden, we look at a wood fibre and lime build-up first.
- Free survey in KT3 and nearby
- Guide price from £150 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in New Malden
Postcode, service and a phone number is all we need.
What's included
- 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
- Vapour-open and hygroscopic — buffers moisture rather than trapping it

New Malden: walls, weather and approvals
We also cover Surbiton and Morden, close to New Malden. 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.
If your home in New Malden is in a conservation area, we check the council's position on render before suggesting wood fibre EWI.
- Postcode district
- KT3
- County or area
- Greater London
- Nation
- England
- Nearby
- Surbiton, Morden, Wimbledon, Mitcham
England: planning and regulations
Before quoting in New Malden, 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.
Building control applies once more than half of a wall is insulated or re-rendered, or more than a quarter of the whole building envelope, and your written quote says how that's handled.
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 New Malden
| 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
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 New Malden: 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.
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.
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 New Malden?
Yes — we survey and quote wood fibre external wall insulation in New Malden (KT3) and nearby Surbiton, Morden and Wimbledon, with a fixed written price before any work starts.