Insulated render · Greater London
Insulated render systems in Chiswick
Insulated render systems in Chiswick: free survey, written specification and a fixed price, with the details that keep walls dry planned from the start. Two-tone schemes, such as a darker plinth or entrance surround, are an option on houses in Chiswick.
- Free survey in W4 and nearby
- Guide price from £105 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Chiswick
Postcode, service and a phone number is all we need.
What the job covers
- One system: board, adhesive, fixings, mesh, primer and render
- Combines a new look with lower heat loss
- Suitable for houses, extensions and whole buildings
- Through-coloured finishes in hundreds of shades

Homes and walls in Chiswick
We cover Chiswick and nearby Acton, Barnes and Shepherds Bush. 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 houses in Chiswick with shallow eaves, the insulated render thickness is planned with the roofline in mind.
- Postcode district
- W4
- County or area
- Greater London
- Nation
- England
- Nearby
- Acton, Barnes, Shepherds Bush, Fulham
Approvals in England
For a house in Chiswick, 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.
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.
Is insulated render the same as EWI?
Yes — insulated render is the everyday name for a rendered EWI system. Some people also use it for thin thermal renders containing aerogel or cork, which are applied 20–40mm thick on heritage walls. They insulate far less than board systems, so we treat them as a specialist option.
Insulated render systems prices in Chiswick
| Item | Guide price | Notes |
|---|---|---|
| Insulated render (EPS + silicone) | £105–£145 per m²0% VAT | Excluding scaffold |
| Mineral wool insulated render | £125–£170 per m²0% VAT | |
| Contrasting colour features | +£8–£20 per m²0% VAT | Where used |
Confirmed by a fixed written quote after survey. 0% VAT: installing insulation in a home is zero-rated until 31 March 2027, so these figures are the total; 5% applies from 1 April 2027.
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.
Insulated render in Chiswick: questions
Will my house look different?
Yes, if it was brick or pebble dash. If you want to keep a brick look, a brick-slip finish over the insulation is an option.
Can insulated render be applied in winter?
Only in suitable weather — typically above 5°C and rising, with no frost or rain during curing. Winter programmes allow for lost days.
How long does insulated render last?
Typically 25–30 years or more with maintenance; the manufacturer's documentation sets the service life for the specific system.
Do you cover Chiswick?
Yes — we survey and quote insulated render in Chiswick (W4) and nearby Acton, Barnes and Shepherds Bush, with a fixed written price before any work starts.