Wood fibre EWI · East Sussex
Wood fibre insulation for older homes in Seaford
We quote wood fibre external wall insulation for homes in Seaford (BN25) and nearby Eastbourne and Brighton, with guide prices online and a free survey to fix the price. If your home in Seaford is in a conservation area, we check the council's position on render before suggesting wood fibre EWI.
- Free survey in BN25 and nearby
- Guide price from £150 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Seaford
Postcode, service and a phone number is all we need.
What's included
- Often the most suitable EWI where planning allows on older properties
- Thicker than foam for the same U-value
- High density gives good protection from summer heat
- Compatible with lime renders used on traditional buildings

What we look for in Seaford
Surveys in Seaford also cover the surrounding BN25 district and towns such as Eastbourne and Brighton. Seaford sits around 11 miles from Brighton. 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.
Exposure to wind-driven rain varies across East Sussex: 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 period homes in Seaford, the survey looks closely at existing lime mortars and any cement patching that may trap moisture.
- Postcode district
- BN25
- County or area
- East Sussex
- Nation
- England
- Nearby
- Eastbourne, Brighton, Hove, Portslade
Approvals in England
For a house in Seaford, 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.
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.
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 Seaford
| 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
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 Seaford: questions
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.
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 Seaford?
Yes — we survey and quote wood fibre external wall insulation in Seaford (BN25) and nearby Eastbourne, Brighton and Hove, with a fixed written price before any work starts.