External Rendering · North West London

External rendering in North West London

From the Victorian and Edwardian terraces of Willesden and Cricklewood to the vast interwar suburbs of Harrow, Edgware and Wembley, North West London is full of homes whose external finish is now decades past its best.

Request a free wall check Or call 07884 425210

One area, two very different housing stocks

North West London is not one thing. The inner stretch, closer to Willesden, Cricklewood and Kilburn, is largely pre-1920s and often solid-wall, with no cavity to speak of. Further out, along the routes the Metropolitan and Northern lines opened up in the 1920s and 1930s, you get street after street of semis and terraces built to a pattern, many of them finished in pebbledash or roughcast from new.

That distinction matters, because it changes what the right answer is. A solid-wall Edwardian house has different needs from a 1930s semi with a narrow cavity, and both differ again from a property that has already been rendered once and is now on its second failure. We survey before recommending, rather than applying one system to everything.

Completed cream render finish on an interwar semi-detached home in North West London — A completed interwar semi, the most common house type across the outer North West London suburbs.

What we do

Render repair

Cracked, blown or stained render inspected properly, then repaired or replaced depending on what the wall actually needs.

Read the homeowner guide →

Full external rendering

Complete re-rendering of an elevation or a whole house, in a finish and colour chosen to suit the property.

About silicone render →

Insulated render systems

External wall insulation for solid-wall homes, where boards and a render finish go on together.

About external wall insulation →

Period and older homes

Older properties need a more careful approach to materials and preparation than a standard modern spec.

Rendering period homes →

Areas we cover in North West London

We work across the HA and NW postcodes and into the neighbouring North London boroughs. The pages below go into detail on individual areas.

Harrow, Wealdstone and Rayners Lane
Edgware, Burnt Oak and Canons Park
Wembley and Wembley Park
Mill Hill and Hendon
Barnet, Finchley and Whetstone
Stanmore and Pinner
Golders Green and Kingsbury
Cricklewood and Willesden

If your postcode is not listed, ask anyway. The boundary is about travel time, not a fixed line on a map.

How a job runs

A real surveyor visits, measures up and checks the wall build-up, damp risks, access and the planning context for your street. You receive an itemised written quote covering the system, the render type, the detailing and scaffolding, so you can compare it properly against anything else you have been sent. On site, preparation comes first, then the system and finish, with a clean-down at the end of each day and sign-off and warranty paperwork at the end.

Smart Renda site board on scaffolding at a North London rendering job in progress — Work in progress on a North London property, with preparation and masking done before any finish goes on.

North West London questions

Which North West London areas do you cover?

We work across the HA and NW postcodes and the neighbouring North London boroughs, including Harrow, Edgware, Wembley, Mill Hill, Barnet, Finchley, Hendon, Stanmore, Pinner and the surrounding areas.

Do you only do external wall insulation?

No. We do straightforward external rendering and render repair as well as insulated systems. Which one suits your home depends on the wall construction and the condition of the existing finish, and that is what the survey establishes.

Do I need planning permission to render my house?

It varies. Rendering is often permitted development on an ordinary house, but conservation areas, listed buildings, flats, maisonettes and properties subject to an article 4 direction are treated differently, and adding an insulated system changes the external dimensions. We flag the planning position at survey and recommend you confirm it with your local authority before work starts.

Can you do one elevation rather than the whole house?

Yes, and sometimes that is the sensible choice, for example where only a rear or side wall is exposed to driving rain. The trade-off is appearance, since a new finish next to an old one will show.