Wood fibre EWI · Isle of Wight
Wood fibre insulation for older homes in Cowes
If you're planning wood fibre external wall insulation in Cowes, 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 Cowes, we look at a wood fibre and lime build-up first.
- Free survey in PO31 and nearby
- Guide price from £150 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Cowes
Postcode, service and a phone number is all we need.
What's included
- High density gives good protection from summer heat
- Vapour-open and hygroscopic — buffers moisture rather than trapping it
- Thicker than foam for the same U-value
- Made from a renewable material with low embodied carbon

Local considerations in Cowes
We cover Cowes and nearby Newport (Isle of Wight), Ryde and Gosport. Cowes sits around 6 miles from Ryde. 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.
Exposure to wind-driven rain varies across Isle of Wight: sheltered town streets fare better than walls on high ground or facing the prevailing weather, and the render, beads and cill details are chosen with that in mind.
If your home in Cowes is in a conservation area, we check the council's position on render before suggesting wood fibre EWI.
- Postcode district
- PO31
- County or area
- Isle of Wight
- Nation
- England
- Nearby
- Newport (Isle of Wight), Ryde, Gosport, Fareham
Planning and building control in England
Planning in Cowes 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.
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 Cowes
| 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 Cowes: 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 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.
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 Cowes?
Yes — we survey and quote wood fibre external wall insulation in Cowes (PO31) and nearby Newport (Isle of Wight), Ryde and Gosport, with a fixed written price before any work starts.