Wood fibre EWI · Dorset
Wood fibre insulation for older homes in Christchurch
Looking for wood fibre external wall insulation in Christchurch? We survey homes across Christchurch and the BH23 area, then give you a fixed written price before any work starts. For period homes in Christchurch, the survey looks closely at existing lime mortars and any cement patching that may trap moisture.
- Free survey in BH23 and nearby
- Guide price from £150 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Christchurch
Postcode, service and a phone number is all we need.
What's included
- 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
- High density gives good protection from summer heat

Homes and walls in Christchurch
We cover Christchurch and nearby Bournemouth, New Milton and Poole. Christchurch is about 4 miles from Bournemouth. The South West has many stone and solid-walled cottages, exposed coastal properties and a share of post-war system-built houses, including types such as the Cornish Unit.
Exposure to wind-driven rain varies across Dorset: 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 Christchurch, we look at a wood fibre and lime build-up first.
- Postcode district
- BH23
- County or area
- Dorset
- Nation
- England
- Nearby
- Bournemouth, New Milton, Poole, Totton
Planning and building control in England
Planning in Christchurch 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.
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.
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 Christchurch
| 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%.
How it works
Get a guide price
Try the online quote tool for a ballpark figure.
Book the survey
A visit at a time that suits you.
Agree the quote
Nothing starts until you've signed the written price.
We do the work
Planned around weather, with you kept informed.
Wood fibre EWI in Christchurch: questions
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.
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 Christchurch?
Yes — we survey and quote wood fibre external wall insulation in Christchurch (BH23) and nearby Bournemouth, New Milton and Poole, with a fixed written price before any work starts.