Wood fibre EWI · Greater London
Wood fibre insulation for older homes in Hounslow
Wood fibre insulation for older homes in Hounslow: free survey, written specification and a fixed price, with the details that keep walls dry planned from the start. If your home in Hounslow is in a conservation area, we check the council's position on render before suggesting wood fibre EWI.
- Free survey in TW3 and nearby
- Guide price from £150 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Hounslow
Postcode, service and a phone number is all we need.
Included as standard
- Often the most suitable EWI where planning allows on older properties
- High density gives good protection from summer heat
- Thicker than foam for the same U-value
- Compatible with lime renders used on traditional buildings
Homes and walls in Hounslow
Surveys in Hounslow also cover the surrounding TW3 district and towns such as Isleworth and Heston. 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 Hounslow, the survey looks closely at existing lime mortars and any cement patching that may trap moisture.
- Postcode district
- TW3
- County or area
- Greater London
- Nation
- England
- Nearby
- Isleworth, Heston, Richmond, Hanworth
Permissions in England
Before quoting in Hounslow, 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.
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.
Why do older walls need breathable insulation?
Stone and early brick walls were built with lime mortars and renders that let moisture in and out. Sealing them with impermeable materials can trap water in the wall, leading to damp and frost damage. Wood fibre keeps the build-up open to vapour, and its ability to absorb and release moisture helps the wall stay in balance.
Wood fibre insulation for older homes prices in Hounslow
| 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
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 Hounslow: questions
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.
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.
Do you cover Hounslow?
Yes — we survey and quote wood fibre external wall insulation in Hounslow (TW3) and nearby Isleworth, Heston and Richmond, with a fixed written price before any work starts.