Commercial EWI · Greater London
Commercial and public building EWI in Welling
We quote commercial external wall insulation for homes in Welling (DA16) and nearby Bexley and Eltham, with guide prices online and a free survey to fix the price. We provide drawings and finish samples for planning applications on Welling commercial buildings.
- Free survey in DA16 and nearby
- Guide price from £110 per m² + scaffold, + VAT
- Fixed written price before work starts
Free survey in Welling
Postcode, service and a phone number is all we need.
What's included
- Clear handover file with system documentation
- Planning applications supported with drawings and finish samples
- Programmes phased around opening hours and term dates
- Contract roles under CDM 2015 agreed at the start

Before we quote in Welling
We also cover Bexley and Eltham, close to Welling. 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.
For commercial premises in Welling, we programme the work around opening hours so the building can keep trading.
- Postcode district
- DA16
- County or area
- Greater London
- Nation
- England
- Nearby
- Bexley, Eltham, Thamesmead, Chislehurst
Approvals in England
For a house in Welling, 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.
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 Welling
| 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
Get a guide price
Try the online quote tool for a ballpark figure.
Book the survey
A visit at a time that suits you.
Agree the quote
Nothing starts until you've signed the written price.
We do the work
Planned around weather, with you kept informed.
Commercial EWI in Welling: questions
Do you provide a maintenance plan?
Yes — the handover includes the system documents and recommended inspection and cleaning intervals.
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 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 Welling?
Yes — we survey and quote commercial external wall insulation in Welling (DA16) and nearby Bexley, Eltham and Thamesmead, with a fixed written price before any work starts.