Commercial EWI · Cornwall
Commercial and public building EWI in Truro
Homeowners and landlords in Truro can get a free survey and a fixed written quote for commercial external wall insulation, covering TR1 and the surrounding area. For commercial premises in Truro, we programme the work around opening hours so the building can keep trading.
- Free survey in TR1 and nearby
- Guide price from £110 per m² + scaffold, + VAT
- Fixed written price before work starts
Free survey in Truro
Postcode, service and a phone number is all we need.
Part of every quote
- Contract roles under CDM 2015 agreed at the start
- Planning applications supported with drawings and finish samples
- Non-combustible systems where use or height requires them
- Colour and texture options to suit brand or setting

What we look for in Truro
We cover Truro and nearby Falmouth, Redruth and Newquay. Truro is about 8 miles from Redruth. The South West has many stone and solid-walled cottages, exposed coastal properties and a share of post-war system-built houses, including types such as the Cornish Unit.
Parts of Cornwall fall in the higher wind-driven rain exposure bands, especially coastal and upland sites, so render specification, movement joints and detailing at cills, verges and the base of the wall matter more than usual.
Schools and community buildings around Truro are usually phased by elevation, with noisy stages in holidays where possible.
- Postcode district
- TR1
- County or area
- Cornwall
- Nation
- England
- Nearby
- Falmouth, Redruth, Newquay, Camborne
Approvals in England
Before quoting in Truro, 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.
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.
On residential buildings with a storey 11 metres or more above ground, guidance points to non-combustible external wall materials, and combustible materials are banned in relevant buildings 18 metres and over, so we specify mineral wool systems there.
Does commercial EWI need planning permission?
Generally yes — permitted development rights for external wall changes are written for houses. Applications need elevations showing the projection, finish and colours, and details at eaves and openings.
Commercial and public building EWI prices in Truro
| Item | Guide price | Notes |
|---|---|---|
| Insulated render system | £110–£200 per m²+ VAT | Priced on survey |
| Render refurbishment without insulation | £55–£95 per m²+ VAT | Silicone or mineral |
| Access and scaffold | Per building | Includes edge protection |
Confirmed by a fixed written quote after survey. Business prices shown before VAT, which is added at 20%. Buildings used solely for a relevant charitable purpose can qualify for 0% on insulation.
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.
Commercial EWI in Truro: questions
Do you handle the planning application?
We provide the technical information, drawings and samples an application needs; your agent or our designer can submit it.
Is VAT 0% on commercial insulation?
Usually not. The zero rate covers insulation installed in residential accommodation and, since 1 February 2024, buildings used solely for a relevant charitable purpose, such as many charity-run village halls. Other commercial work is standard-rated.
Can the building stay open during the works?
Usually, yes. The work is phased and the scaffold layout keeps entrances and escape routes clear.
Do you cover Truro?
Yes — we survey and quote commercial external wall insulation in Truro (TR1) and nearby Falmouth, Redruth and Newquay, with a fixed written price before any work starts.