Commercial EWI · Devon
Commercial and public building EWI in Exeter
Need commercial external wall insulation in Exeter? Tell us about the property and we'll arrange a free survey and a written quote. Schools and community buildings around Exeter are usually phased by elevation, with noisy stages in holidays where possible.
- Free survey in EX2 and nearby
- Guide price from £110 per m² + scaffold, + VAT
- Fixed written price before work starts
Free survey in Exeter
Postcode, service and a phone number is all we need.
Included as standard
- Planning applications supported with drawings and finish samples
- Contract roles under CDM 2015 agreed at the start
- Non-combustible systems where use or height requires them
- Clear handover file with system documentation

Homes and walls in Exeter
We also cover Exmouth and Newton Abbot, close to Exeter. Exeter sits around 36 miles from Plymouth. 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 Devon 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.
For commercial premises in Exeter, we programme the work around opening hours so the building can keep trading.
- Postcode district
- EX2
- County or area
- Devon
- Nation
- England
- Nearby
- Exmouth, Newton Abbot, Torquay, Paignton
Planning and building control in England
For a house in Exeter, 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.
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.
How is the work programmed?
Work is split by elevation so entrances and fire exits stay usable. For schools, noisy and access-heavy stages are planned around holidays where possible. Health and safety duties under CDM 2015 are agreed at the start, including who acts as principal contractor.
Commercial and public building EWI prices in Exeter
| 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.
What happens next
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 Exeter: questions
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 handle the planning application?
We provide the technical information, drawings and samples an application needs; your agent or our designer can submit it.
Do you cover Exeter?
Yes — we survey and quote commercial external wall insulation in Exeter (EX2) and nearby Exmouth, Newton Abbot and Torquay, with a fixed written price before any work starts.