Wood fibre EWI · Hampshire
Wood fibre insulation for older homes in Portsmouth
Quotes for wood fibre external wall insulation in Portsmouth list the system, the detailing and the VAT position in writing, so you know exactly what's included. For period homes in Portsmouth, the survey looks closely at existing lime mortars and any cement patching that may trap moisture.
- Free survey in PO5 and nearby
- Guide price from £150 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Portsmouth
Postcode, service and a phone number is all we need.
Included as standard
- Made from a renewable material with low embodied carbon
- Thicker than foam for the same U-value
- Compatible with lime renders used on traditional buildings
- High density gives good protection from summer heat
What we look for in Portsmouth
Surveys in Portsmouth also cover the surrounding PO5 district and towns such as Gosport and Fareham. Portsmouth sits around 15 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.
If your home in Portsmouth is in a conservation area, we check the council's position on render before suggesting wood fibre EWI.
- Postcode district
- PO5
- County or area
- Hampshire
- Nation
- England
- Nearby
- Gosport, Fareham, Ryde, Havant
Planning and building control in England
Before quoting in Portsmouth, 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.
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 Portsmouth
| 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 Portsmouth: questions
Does wood fibre need a lime render?
It needs the render specified by the system manufacturer, which is usually lime or mineral based.
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.
Do you cover Portsmouth?
Yes — we survey and quote wood fibre external wall insulation in Portsmouth (PO5) and nearby Gosport, Fareham and Ryde, with a fixed written price before any work starts.