Wood fibre EWI · England
Wood fibre insulation for older homes in Hampshire
Planning wood fibre external wall insulation anywhere in Hampshire? We cover towns including Southampton and Portsmouth, and check planning and building control for each address. For period homes in Hampshire, the survey looks closely at existing lime mortars and any cement patching that may trap moisture.
- Free survey and fixed written price
- Guide price from £150 per m² + scaffold, 0% VAT
- Planning and building control checked for England
Free survey in Hampshire
Tell us the postcode and what you need.
What's included
- High density gives good protection from summer heat
- Vapour-open and hygroscopic — buffers moisture rather than trapping it
- Compatible with lime renders used on traditional buildings
- Made from a renewable material with low embodied carbon
- Thicker than foam for the same U-value
What we look for in Hampshire
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.
If your home in Hampshire is in a conservation area, we check the council's position on render before suggesting wood fibre EWI.
- Nation
- England
- Region
- South East
- Towns covered
- Southampton, Portsmouth, Basingstoke, Gosport, Waterlooville, Aldershot, Farnborough, Fareham…
- Guide price
- From £150 per m² + scaffold · 0% VAT
England: planning and regulations
For houses, external wall insulation and render are often permitted development where the finish looks similar to the existing walls. Planning permission is usually needed in conservation areas, National Parks, National Landscapes, the Broads and World Heritage Sites (where cladding a house in stone, artificial stone, pebble dash, render, timber, plastic or tiles isn't permitted development), for flats and maisonettes, for commercial buildings, under an Article 4 direction, or where the look changes noticeably. Listed buildings need listed building consent.
Renovating more than half of a wall's area — insulating it, or stripping and re-rendering it — or more than a quarter of the building's whole external envelope brings in the energy requirements of Part L, so building control needs to be involved and the wall should reach about 0.30 W/m²K where that's technically, functionally and economically feasible.
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 Hampshire
| 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 Hampshire: 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.
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 all of Hampshire?
Yes. We survey and quote wood fibre external wall insulation across Hampshire, including Southampton, Portsmouth, Basingstoke, Gosport, Waterlooville.
Do I need planning permission in England?
For houses, external wall insulation and render are often permitted development where the finish looks similar to the existing walls. We check your address before quoting.