Wood fibre EWI · Cheshire
Wood fibre insulation for older homes in Northwich
We quote wood fibre external wall insulation for homes in Northwich (CW9) and nearby Winsford and Warrington, with guide prices online and a free survey to fix the price. For period homes in Northwich, the survey looks closely at existing lime mortars and any cement patching that may trap moisture.
- Free survey in CW9 and nearby
- Guide price from £150 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Northwich
Postcode, service and a phone number is all we need.
Included as standard
- High density gives good protection from summer heat
- Compatible with lime renders used on traditional buildings
- Thicker than foam for the same U-value
- Made from a renewable material with low embodied carbon

What we look for in Northwich
Surveys in Northwich also cover the surrounding CW9 district and towns such as Winsford and Warrington. It's roughly 10 miles from Northwich to Warrington, the largest town in Cheshire. The North West has one of the largest stocks of pre-1919 solid-wall terraces in England, alongside Pennine stone houses and post-war estates.
Exposure to wind-driven rain varies across Cheshire: 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 Northwich is in a conservation area, we check the council's position on render before suggesting wood fibre EWI.
- Postcode district
- CW9
- County or area
- Cheshire
- Nation
- England
- Nearby
- Winsford, Warrington, Runcorn, Great Sankey
Planning and building control in England
Before quoting in Northwich, 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.
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 Northwich
| 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
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 Northwich: 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 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.
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 Northwich?
Yes — we survey and quote wood fibre external wall insulation in Northwich (CW9) and nearby Winsford, Warrington and Runcorn, with a fixed written price before any work starts.