Brick slip EWI · Greater London
Brick slip finish over insulation in Isleworth
Quotes for brick slip finishes in Isleworth list the system, the detailing and the VAT position in writing, so you know exactly what's included. Mixed finishes — brick slip below, render above — can suit semi-detached houses in Isleworth.
- Free survey in TW7 and nearby
- Guide price from £185 per m² + scaffold, 0% VAT
- Fixed written price before work starts
Free survey in Isleworth
Postcode, service and a phone number is all we need.
What the job covers
- Clay, concrete or flexible acrylic slips available
- Thin slips (typically 10–20mm) bonded to the system base coat
- Corners formed with L-shaped slips for a convincing finish
- Helps meet 'similar appearance' planning conditions

Local considerations in Isleworth
Surveys in Isleworth also cover the surrounding TW7 district and towns such as Hounslow and Heston. 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.
On brick terraces in Isleworth, slips can insulate the wall while keeping the street's look.
- Postcode district
- TW7
- County or area
- Greater London
- Nation
- England
- Nearby
- Hounslow, Heston, Richmond, Southall
Planning and building control in England
Before quoting in Isleworth, we check whether the property is in a conservation area, under an Article 4 direction or listed, because that decides whether changing the outside needs planning permission.
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.
Why choose brick slips over render?
Permitted development for houses in England and Wales generally expects materials of a similar appearance to the existing walls. On a brick terrace or estate, render can change the street scene, while brick slips keep it. Some owners simply prefer the brick look.
Brick slip finish over insulation prices in Isleworth
| Item | Guide price | Notes |
|---|---|---|
| Brick slip EWI | £185–£260 per m²0% VAT | Excluding scaffold |
| Brick slip feature panels | £168–£265 per m²inc VAT | Plinths, bays, features |
| Matching samples | Provided at survey |
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. Prices include VAT at 20%.
What happens next
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.
Brick slip EWI in Isleworth: questions
Is a brick slip finish more expensive?
Yes — roughly £70–£120 per m² more than render, because of materials and slower installation.
Can I mix brick slips and render?
Yes. A brick plinth or ground floor with render above is a common combination.
Will brick slips match my neighbours' brick?
We source slips to get close in colour and texture and show samples beforehand, but an exact match to weathered brick isn't always possible.
Do you cover Isleworth?
Yes — we survey and quote brick slip finishes in Isleworth (TW7) and nearby Hounslow, Heston and Richmond, with a fixed written price before any work starts.