Commercial EWI · Greater London
Commercial and public building EWI in Ruislip
We quote commercial external wall insulation for homes in Ruislip (HA4) and nearby Northolt and Uxbridge, with guide prices online and a free survey to fix the price. Schools and community buildings around Ruislip are usually phased by elevation, with noisy stages in holidays where possible.
- Free survey in HA4 and nearby
- Guide price from £110 per m² + scaffold, + VAT
- Fixed written price before work starts
Free survey in Ruislip
Postcode, service and a phone number is all we need.
Included as standard
- Contract roles under CDM 2015 agreed at the start
- Programmes phased around opening hours and term dates
- Colour and texture options to suit brand or setting
- Clear handover file with system documentation

Local considerations in Ruislip
As well as Ruislip itself, we quote in Northolt, Uxbridge and Harrow. 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 Ruislip commercial buildings.
- Postcode district
- HA4
- County or area
- Greater London
- Nation
- England
- Nearby
- Northolt, Uxbridge, Harrow, Hayes
Approvals in England
For a house in Ruislip, 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.
Which system suits a commercial building?
The building's height, use (for example, residential or assembly use) and fire strategy shape the choice. Mineral wool systems are typical for multi-storey and public buildings; EPS may suit single-storey units. The system manufacturer's classification is confirmed in writing.
Commercial and public building EWI prices in Ruislip
| 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 Ruislip: 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.
Do you provide a maintenance plan?
Yes — the handover includes the system documents and recommended inspection and cleaning intervals.
Do you cover Ruislip?
Yes — we survey and quote commercial external wall insulation in Ruislip (HA4) and nearby Northolt, Uxbridge and Harrow, with a fixed written price before any work starts.