Wood fibre EWI · Buckinghamshire
Wood fibre insulation for older homes in Bletchley
Quotes for wood fibre external wall insulation in Bletchley list the system, the detailing and the VAT position in writing, so you know exactly what's included. For period homes in Bletchley, the survey looks closely at existing lime mortars and any cement patching that may trap moisture.
- Free survey in MK3 and nearby
- Guide price from £150 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Bletchley
Postcode, service and a phone number is all we need.
What you get
- 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
- Thicker than foam for the same U-value

Bletchley: walls, weather and approvals
As well as Bletchley itself, we quote in Milton Keynes, Leighton Buzzard and Ampthill. It's roughly 3 miles from Bletchley to Milton Keynes, the largest town in Buckinghamshire. 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.
Much of Buckinghamshire 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 Bletchley, we look at a wood fibre and lime build-up first.
- Postcode district
- MK3
- County or area
- Buckinghamshire
- Nation
- England
- Nearby
- Milton Keynes, Leighton Buzzard, Ampthill, Dunstable
Planning and building control in England
Planning in Bletchley 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.
If the work covers more than half of a wall, or a quarter of the building's whole envelope, it counts as renovating a thermal element, with a target of about 0.30 W/m²K where feasible.
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 Bletchley
| 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 Bletchley: 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.
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.
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 Bletchley?
Yes — we survey and quote wood fibre external wall insulation in Bletchley (MK3) and nearby Milton Keynes, Leighton Buzzard and Ampthill, with a fixed written price before any work starts.