Commercial EWI · Greater London
Commercial and public building EWI in Eltham
Homeowners and landlords in Eltham can get a free survey and a fixed written quote for commercial external wall insulation, covering SE9 and the surrounding area. For commercial premises in Eltham, we programme the work around opening hours so the building can keep trading.
- Free survey in SE9 and nearby
- Guide price from £110 per m² + scaffold, + VAT
- Fixed written price before work starts
Free survey in Eltham
Postcode, service and a phone number is all we need.
Part of every quote
- Clear handover file with system documentation
- Colour and texture options to suit brand or setting
- Planning applications supported with drawings and finish samples
- Programmes phased around opening hours and term dates
Eltham: walls, weather and approvals
Surveys in Eltham also cover the surrounding SE9 district and towns such as Blackheath and Chislehurst. London's housing includes a large stock of Victorian and Edwardian solid-wall terraces, inter-war semis and post-war blocks, and conservation areas cover many streets — so planning is often the first question for external work.
Much of Greater London 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 Eltham are usually phased by elevation, with noisy stages in holidays where possible.
- Postcode district
- SE9
- County or area
- Greater London
- Nation
- England
- Nearby
- Blackheath, Chislehurst, Welling, Catford
Approvals in England
For a house in Eltham, 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 Eltham
| 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
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 Eltham: questions
Do you provide a maintenance plan?
Yes — the handover includes the system documents and recommended inspection and cleaning intervals.
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 cover Eltham?
Yes — we survey and quote commercial external wall insulation in Eltham (SE9) and nearby Blackheath, Chislehurst and Welling, with a fixed written price before any work starts.