Commercial EWI · Greater London
Commercial and public building EWI in New Malden
If you're planning commercial external wall insulation in New Malden, start with a free survey: we measure, check the walls and confirm planning and building control for your address. Schools and community buildings around New Malden are usually phased by elevation, with noisy stages in holidays where possible.
- Free survey in KT3 and nearby
- Guide price from £110 per m² + scaffold, + VAT
- Fixed written price before work starts
Free survey in New Malden
Postcode, service and a phone number is all we need.
Part of every quote
- Programmes phased around opening hours and term dates
- Non-combustible systems where use or height requires them
- Planning applications supported with drawings and finish samples
- Contract roles under CDM 2015 agreed at the start

Local considerations in New Malden
Surveys in New Malden also cover the surrounding KT3 district and towns such as Surbiton and Morden. 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.
We provide drawings and finish samples for planning applications on New Malden commercial buildings.
- Postcode district
- KT3
- County or area
- Greater London
- Nation
- England
- Nearby
- Surbiton, Morden, Wimbledon, Mitcham
England: planning and regulations
For a house in New Malden, 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.
Building control applies once more than half of a wall is insulated or re-rendered, or more than a quarter of the whole building envelope, and your written quote says how that's handled.
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 New Malden
| 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
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 New Malden: questions
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.
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 cover New Malden?
Yes — we survey and quote commercial external wall insulation in New Malden (KT3) and nearby Surbiton, Morden and Wimbledon, with a fixed written price before any work starts.