Commercial EWI · West Sussex
Commercial and public building EWI in Chichester
Need commercial external wall insulation in Chichester? Tell us about the property and we'll arrange a free survey and a written quote. Schools and community buildings around Chichester are usually phased by elevation, with noisy stages in holidays where possible.
- Free survey in PO19 and nearby
- Guide price from £110 per m² + scaffold, + VAT
- Fixed written price before work starts
Free survey in Chichester
Postcode, service and a phone number is all we need.
Part of every quote
- Colour and texture options to suit brand or setting
- Programmes phased around opening hours and term dates
- Clear handover file with system documentation
- Non-combustible systems where use or height requires them

Before we quote in Chichester
We also cover Bognor Regis and Havant, close to Chichester. Chichester sits around 32 miles from Crawley. 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 West 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 commercial premises in Chichester, we programme the work around opening hours so the building can keep trading.
- Postcode district
- PO19
- County or area
- West Sussex
- Nation
- England
- Nearby
- Bognor Regis, Havant, Littlehampton, Waterlooville
England: planning and regulations
For a house in Chichester, 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.
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 Chichester
| 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.
How it works
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 Chichester: questions
Can the building stay open during the works?
Usually, yes. The work is phased and the scaffold layout keeps entrances and escape routes clear.
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.
Do you provide a maintenance plan?
Yes — the handover includes the system documents and recommended inspection and cleaning intervals.
Do you cover Chichester?
Yes — we survey and quote commercial external wall insulation in Chichester (PO19) and nearby Bognor Regis, Havant and Littlehampton, with a fixed written price before any work starts.