Monocouche render · Greater London
Monocouche render in Harrow
From Harrow to Wembley, we price monocouche render after a measured survey — no guesswork, and no work starts until the price is agreed in writing. Extensions and new blockwork in Harrow are where monocouche makes most sense.
- Free survey in HA2 and nearby
- Guide price from £54 per m² + scaffold, inc VAT
- Fixed written price before work starts
Free survey in Harrow
Postcode, service and a phone number is all we need.
Part of every quote
- Through-coloured, with a scraped texture
- Lower cost per m² than thin-coat systems on suitable walls
- Not the finish used over insulation boards
- Good for new blockwork and extensions

What we look for in Harrow
We also cover Wembley and Northolt, close to 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.
For Harrow homeowners matching a new extension to an existing rendered house, we compare monocouche and silicone samples first.
- Postcode district
- HA2
- County or area
- Greater London
- Nation
- England
- Nearby
- Wembley, Northolt, Greenford, Ruislip
England: planning and regulations
Planning in Harrow 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.
Why does monocouche sometimes look patchy?
Colour variation (often called shading) can appear if it's applied in poor weather, on walls with uneven suction, or in sections on different days. Working an elevation in one go in suitable conditions keeps the colour even.
Monocouche render prices in Harrow
| Item | Guide price | Notes |
|---|---|---|
| Monocouche on blockwork | £54–£84 per m²inc VAT | Excluding scaffold |
| Single-storey extension | £2,395–£4,195inc VAT | Typical |
| Beads and movement joints | Included |
Confirmed by a fixed written quote after survey. Prices include VAT at 20%.
How it works
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.
Monocouche render in Harrow: questions
Monocouche or silicone for an extension?
Both work on new blockwork. Silicone over a base coat costs a little more but tends to stay cleaner.
How long does monocouche last?
Typically 20 years or more on a suitable wall, depending on exposure and detailing.
Does monocouche need painting?
No — it's through-coloured. Cleaning every few years keeps it looking fresh.
Do you cover Harrow?
Yes — we survey and quote monocouche render in Harrow (HA2) and nearby Wembley, Northolt and Greenford, with a fixed written price before any work starts.