Wood fibre EWI · Suffolk
Wood fibre insulation for older homes in Sudbury
Homeowners and landlords in Sudbury can get a free survey and a fixed written quote for wood fibre external wall insulation, covering CO10 and the surrounding area. For period homes in Sudbury, the survey looks closely at existing lime mortars and any cement patching that may trap moisture.
- Free survey in CO10 and nearby
- Guide price from £150 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Sudbury
Postcode, service and a phone number is all we need.
What you get
- Compatible with lime renders used on traditional buildings
- Often the most suitable EWI where planning allows on older properties
- High density gives good protection from summer heat
- Made from a renewable material with low embodied carbon

Sudbury: walls, weather and approvals
We also cover Colchester and Haverhill, close to Sudbury. It's roughly 18 miles from Sudbury to Ipswich, the largest town in Suffolk. 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 Suffolk 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 Sudbury, we look at a wood fibre and lime build-up first.
- Postcode district
- CO10
- County or area
- Suffolk
- Nation
- England
- Nearby
- Colchester, Haverhill, Braintree, Bury St Edmunds
Approvals in England
For a house in Sudbury, external insulation or render is often permitted development if it looks similar to the existing walls; conservation areas, flats, commercial buildings and listed buildings need permission or consent, so we check your address first.
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 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 Sudbury
| 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
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 Sudbury: 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.
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 Sudbury?
Yes — we survey and quote wood fibre external wall insulation in Sudbury (CO10) and nearby Colchester, Haverhill and Braintree, with a fixed written price before any work starts.