Commercial EWI · Greater London
Commercial and public building EWI in Hounslow
We quote commercial external wall insulation for homes in Hounslow (TW3) and nearby Isleworth and Heston, with guide prices online and a free survey to fix the price. Schools and community buildings around Hounslow are usually phased by elevation, with noisy stages in holidays where possible.
- Free survey in TW3 and nearby
- Guide price from £110 per m² + scaffold, + VAT
- Fixed written price before work starts
Free survey in Hounslow
Postcode, service and a phone number is all we need.
Part of every quote
- Non-combustible systems where use or height requires them
- Programmes phased around opening hours and term dates
- Contract roles under CDM 2015 agreed at the start
- Colour and texture options to suit brand or setting

Hounslow: walls, weather and approvals
We also cover Isleworth and Heston, close to Hounslow. 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 Hounslow, we programme the work around opening hours so the building can keep trading.
- Postcode district
- TW3
- County or area
- Greater London
- Nation
- England
- Nearby
- Isleworth, Heston, Richmond, Hanworth
Permissions in England
Planning in Hounslow follows England's national rules: similar-looking finishes on houses are usually permitted, while flats, commercial premises, conservation areas and streets under an Article 4 direction need an application.
Insulating or re-rendering more than half of a wall's area brings in Part L of the Building Regulations, so building control is notified and the wall is upgraded to about 0.30 W/m²K where practical.
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 Hounslow
| 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
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 Hounslow: 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.
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.
Do you cover Hounslow?
Yes — we survey and quote commercial external wall insulation in Hounslow (TW3) and nearby Isleworth, Heston and Richmond, with a fixed written price before any work starts.