Commercial EWI · Kent
Commercial and public building EWI in Chatham
From Chatham to Rochester, we price commercial external wall insulation after a measured survey — no guesswork, and no work starts until the price is agreed in writing. We provide drawings and finish samples for planning applications on Chatham commercial buildings.
- Free survey in ME4 and nearby
- Guide price from £110 per m² + scaffold, + VAT
- Fixed written price before work starts
Free survey in Chatham
Postcode, service and a phone number is all we need.
What the job covers
- Clear handover file with system documentation
- Contract roles under CDM 2015 agreed at the start
- Colour and texture options to suit brand or setting
- Programmes phased around opening hours and term dates

Before we quote in Chatham
As well as Chatham itself, we quote in Rochester, Gillingham and Strood. Chatham is about 8 miles from Maidstone. 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.
Much of Kent 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.
Schools and community buildings around Chatham are usually phased by elevation, with noisy stages in holidays where possible.
- Postcode district
- ME4
- County or area
- Kent
- Nation
- England
- Nearby
- Rochester, Gillingham, Strood, Maidstone
Permissions in England
For a house in Chatham, 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 Chatham
| 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
Tell us about the property
Use the quote tool or form, or call. Photos help.
Free survey
We measure, check the walls and confirm approvals.
Fixed written quote
System, details, access, exclusions and VAT in writing.
Installation
Scheduled for suitable weather, with a clear programme.
Commercial EWI in Chatham: 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.
Do you provide a maintenance plan?
Yes — the handover includes the system documents and recommended inspection and cleaning intervals.
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 Chatham?
Yes — we survey and quote commercial external wall insulation in Chatham (ME4) and nearby Rochester, Gillingham and Strood, with a fixed written price before any work starts.