Wood fibre EWI · Hertfordshire
Wood fibre insulation for older homes in Hertford
Homeowners and landlords in Hertford can get a free survey and a fixed written quote for wood fibre external wall insulation, covering SG13 and the surrounding area. For period homes in Hertford, the survey looks closely at existing lime mortars and any cement patching that may trap moisture.
- Free survey in SG13 and nearby
- Guide price from £150 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Hertford
Postcode, service and a phone number is all we need.
What the job covers
- High density gives good protection from summer heat
- Vapour-open and hygroscopic — buffers moisture rather than trapping it
- Thicker than foam for the same U-value
- Compatible with lime renders used on traditional buildings
Local considerations in Hertford
Surveys in Hertford also cover the surrounding SG13 district and towns such as Hoddesdon and Welwyn Garden City. It's roughly 17 miles from Hertford to Watford, the largest town in Hertfordshire. 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 Hertfordshire 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 Hertford, we look at a wood fibre and lime build-up first.
- Postcode district
- SG13
- County or area
- Hertfordshire
- Nation
- England
- Nearby
- Hoddesdon, Welwyn Garden City, Hatfield, Cheshunt
Approvals in England
For a house in Hertford, 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.
What about listed buildings and conservation areas?
EWI on a listed building needs listed building consent and is often refused where the outside appearance matters. In conservation areas, rendering or cladding a house normally needs planning permission. Wood fibre and lime are more likely to be acceptable than foam and acrylic, but the council decides. We check before quoting.
Wood fibre insulation for older homes prices in Hertford
| 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 Hertford: 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.
Does wood fibre need a lime render?
It needs the render specified by the system manufacturer, which is usually lime or mineral based.
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 Hertford?
Yes — we survey and quote wood fibre external wall insulation in Hertford (SG13) and nearby Hoddesdon, Welwyn Garden City and Hatfield, with a fixed written price before any work starts.