Wood fibre EWI · Kent
Wood fibre insulation for older homes in Dartford
Homeowners and landlords in Dartford can get a free survey and a fixed written quote for wood fibre external wall insulation, covering DA1 and the surrounding area. If your home in Dartford is in a conservation area, we check the council's position on render before suggesting wood fibre EWI.
- Free survey in DA1 and nearby
- Guide price from £150 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Dartford
Postcode, service and a phone number is all we need.
Included as standard
- Vapour-open and hygroscopic — buffers moisture rather than trapping it
- High density gives good protection from summer heat
- Thicker than foam for the same U-value
- Compatible with lime renders used on traditional buildings
What we look for in Dartford
As well as Dartford itself, we quote in Bexley, Swanley and Welling. Dartford is about 18 miles from Maidstone. 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.
Much of Kent 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 Dartford, the survey looks closely at existing lime mortars and any cement patching that may trap moisture.
- Postcode district
- DA1
- County or area
- Kent
- Nation
- England
- Nearby
- Bexley, Swanley, Welling, Grays
England: planning and regulations
Planning in Dartford follows England's national rules: similar-looking finishes on houses are usually permitted, while flats, commercial premises, conservation areas and streets under an Article 4 direction need an application.
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.
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 Dartford
| 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 Dartford: 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.
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 Dartford?
Yes — we survey and quote wood fibre external wall insulation in Dartford (DA1) and nearby Bexley, Swanley and Welling, with a fixed written price before any work starts.