Wood fibre EWI · Norfolk
Wood fibre insulation for older homes in Dereham
If you're planning wood fibre external wall insulation in Dereham, start with a free survey: we measure, check the walls and confirm planning and building control for your address. For period homes in Dereham, the survey looks closely at existing lime mortars and any cement patching that may trap moisture.
- Free survey in NR19 and nearby
- Guide price from £150 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Dereham
Postcode, service and a phone number is all we need.
Part of every quote
- Made from a renewable material with low embodied carbon
- Often the most suitable EWI where planning allows on older properties
- Vapour-open and hygroscopic — buffers moisture rather than trapping it
- Compatible with lime renders used on traditional buildings
Dereham: walls, weather and approvals
We cover Dereham and nearby Norwich, Thetford and King's Lynn. Dereham is about 16 miles from Norwich. The East of England has a mix of post-war estates, inter-war semis and older solid brick and flint cottages, with some system-built council homes on post-war estates.
Much of Norfolk sits in the lower wind-driven rain exposure bands, which keeps the choice of finishes wide — though hilltop, coastal and exposed gable walls can still need a tougher specification, so we check the actual site.
For older stone and early brick properties in Dereham, we look at a wood fibre and lime build-up first.
- Postcode district
- NR19
- County or area
- Norfolk
- Nation
- England
- Nearby
- Norwich, Thetford, King's Lynn, Bury St Edmunds
Permissions in England
Before quoting in Dereham, 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.
Building control applies once more than half of a wall is insulated or re-rendered, or more than a quarter of the whole building envelope, and your written quote says how that's handled.
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 Dereham
| 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 Dereham: 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 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.
Do you cover Dereham?
Yes — we survey and quote wood fibre external wall insulation in Dereham (NR19) and nearby Norwich, Thetford and King's Lynn, with a fixed written price before any work starts.