Wood fibre EWI · Hampshire
Wood fibre insulation for older homes in Winchester
If you're planning wood fibre external wall insulation in Winchester, start with a free survey: we measure, check the walls and confirm planning and building control for your address. If your home in Winchester is in a conservation area, we check the council's position on render before suggesting wood fibre EWI.
- Free survey in SO23 and nearby
- Guide price from £150 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Winchester
Postcode, service and a phone number is all we need.
What the job covers
- Often the most suitable EWI where planning allows on older properties
- High density gives good protection from summer heat
- Made from a renewable material with low embodied carbon
- Thicker than foam for the same U-value

Before we quote in Winchester
We cover Winchester and nearby Eastleigh, Southampton and Totton. Winchester sits around 12 miles from Southampton. 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 Hampshire: 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.
For older stone and early brick properties in Winchester, we look at a wood fibre and lime build-up first.
- Postcode district
- SO23
- County or area
- Hampshire
- Nation
- England
- Nearby
- Eastleigh, Southampton, Totton, Andover
Approvals in England
Planning in Winchester 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.
If the work covers more than half of a wall, or a quarter of the building's whole envelope, it counts as renovating a thermal element, with a target of about 0.30 W/m²K where feasible.
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 Winchester
| 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 Winchester: 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 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.
Do you cover Winchester?
Yes — we survey and quote wood fibre external wall insulation in Winchester (SO23) and nearby Eastleigh, Southampton and Totton, with a fixed written price before any work starts.