Wood fibre EWI · Greater London
Wood fibre insulation for older homes in Eltham
If you're planning wood fibre external wall insulation in Eltham, start with a free survey: we measure, check the walls and confirm planning and building control for your address. For older stone and early brick properties in Eltham, we look at a wood fibre and lime build-up first.
- Free survey in SE9 and nearby
- Guide price from £150 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Eltham
Postcode, service and a phone number is all we need.
What you get
- Compatible with lime renders used on traditional buildings
- Made from a renewable material with low embodied carbon
- High density gives good protection from summer heat
- Thicker than foam for the same U-value

Homes and walls in Eltham
As well as Eltham itself, we quote in Blackheath, Chislehurst and Welling. 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 Eltham is in a conservation area, we check the council's position on render before suggesting wood fibre EWI.
- Postcode district
- SE9
- County or area
- Greater London
- Nation
- England
- Nearby
- Blackheath, Chislehurst, Welling, Catford
Approvals in England
For a house in Eltham, 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 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 Eltham
| 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
Tell us about the property
Use the quote tool or form, or call. Photos help.
Free survey
We measure, check the walls and confirm approvals.
Fixed written quote
System, details, access, exclusions and VAT in writing.
Installation
Scheduled for suitable weather, with a clear programme.
Wood fibre EWI in Eltham: 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 Eltham?
Yes — we survey and quote wood fibre external wall insulation in Eltham (SE9) and nearby Blackheath, Chislehurst and Welling, with a fixed written price before any work starts.