House Rendering Cost in London

Render changes the look of a house more than almost any other exterior job, and a modern system protects the wall behind it as well. This guide covers what rendering costs in London in 2026, system by system, what a proper quote should include, and where scaffolding, planning and Building Regulations come into it.

How much does rendering cost in London?

House rendering in London typically costs £40 to £110 per square metre installed, depending on the system, with London and the South East running about 15 to 20% higher than the national average, according to Checkatrade and MyBuilder 2026 data. For a typical three-bed semi, a full re-render commonly lands between £5,000 and £12,000 once scaffolding and preparation are included.

Nationally the same work is cheaper. Less.co.uk puts the UK average at £42 per m² against a London average of £55 per m², and Checkatrade's 2026 guide gives a national range of £30 to £80 per m² before scaffolding, preparation and waste removal. If a London quote sits near the national figures, check what has been excluded rather than assuming you have found a bargain.

What does it cost to render a whole house?

Most London houses fall between £3,500 and £20,000 for a full re-render. Renderers price per square metre of facing wall and then deduct window and door openings, so a heavily glazed house costs less than its footprint suggests.

Render types compared

The system you choose is the biggest single cost driver, and each has a place:

• Sand and cement: traditional and cheapest. Strong but rigid, so it cracks as the building moves, and it has to be painted and repainted. Still sensible on a garden wall or a rear elevation nobody sees.
• Monocouche: a one-coat, through-coloured render applied by machine at around 15mm. Durable, fast and no painting. Checkatrade puts it at £55 to £75 per m² nationally in 2026.
• Acrylic: a thin-coat polymer render over a basecoat. Flexible, so it copes with movement, but less breathable than silicone.
• Silicone and silicone-acrylic: the standard modern choice on London jobs. Breathable, water-repellent and self-cleaning, so rain carries dirt off rather than staining it. Checkatrade's 2026 figure is around £72.50 per m² including labour and materials.
• Lime: the correct system on a solid-wall period house that needs to breathe. Cement render on old solid brick is a common cause of trapped damp.

For a wider comparison, see render vs brick vs cladding.

When is scaffolding needed?

Scaffolding is needed for anything above single-storey working height, so in practice on every two-storey re-render, and it should be a separate line on the quote. Expect £800 to £1,500 for a two-storey London semi, £300 to £600 for a single elevation, and £1,500 to £2,600 where all four sides are scaffolded. Most scaffolders set a minimum hire of 4 to 8 weeks, so a two-week render job still carries the full erect, hire and dismantle charge. If the scaffold stands on the public footway you need a council licence, commonly around £140 per month and more in central boroughs. On a terrace it often has to sit on or oversail a neighbour's land, which means asking first and can bring the Party Wall Act into play.

What affects the cost

Beyond the system, the biggest variable is the state of the wall you are rendering onto:

• Removing old render. MyJobQuote puts render removal at around £4,500 on an average house, taking 2 to 4 days.
• Substrate repairs. Repointing, replacing spalled bricks and dealing with damp all happen before a single bag is opened.
• Detailing. Bays, corbels, string courses and deep reveals slow the job down. A plain elevation renders far faster per m² than an ornate Victorian frontage.
• Height and access. Three storeys, a basement lightwell or a narrow side return all add scaffold and handling time.
• Colour and season. Bespoke or very dark through-colours add roughly £10 to £20 per m², and winter work means frost sheeting and lost days.

What preparation is involved?

A render job is mostly preparation, and the finish is only as good as the wall underneath. A typical sequence is:

1. Survey the walls, tap the existing render for hollow areas, check for damp and movement.
2. Erect scaffold and sheet up, protecting windows, paving and the neighbour's side.
3. Hack off failed render, rake out and repoint defective brickwork, let the wall dry.
4. Fix beads, bellcast at the base and mesh reinforcement at corners and openings.
5. Apply the basecoat, allow it to cure, then apply the finish or through-coloured topcoat.
6. Reinstate downpipes, vents and lights, clean down and strike the scaffold.

MyJobQuote's 2026 guide gives 6 to 9 days on site for a three-bed semi and 7 to 14 days for a four-bed detached, before any render removal, which is why most London jobs run 1 to 3 weeks end to end.

What is usually left out of a rendering quote?

The missing items are what make quotes look artificially different from each other. Check whether each one includes:

• Scaffolding, its erect and dismantle charge, and any pavement licence.
• Hacking off and disposing of existing render, including skip or grab lorry hire.
• Repointing and brick repairs, or whether these sit as a provisional sum.
• Removing and refitting downpipes, alarm boxes, meter boxes and external lights.
• New sills, bellcast beads and window reveal detailing.
• Painting, on any system that is not through-coloured.
• The system warranty, which usually only stands if the installer is manufacturer-approved.

Our guide to choosing a builder in London covers what else to check.

Do you need permission to render?

Usually not, because re-rendering an existing house is normally permitted development, but there are four exceptions. A listed building needs listed building consent. In a conservation area you may need planning permission, particularly if you are covering exposed brick or changing colour. Where an Article 4 direction applies the right has been withdrawn, so you must apply. And flats and maisonettes have no permitted development rights at all.

Building Regulations are the part people miss. Under Approved Document L an external wall is a thermal element, and renovating more than 25% of its surface area triggers a duty to improve its insulation towards a U-value of 0.30 W/m²K where that is technically, functionally and economically feasible. A full re-render clears that threshold, which is why many London homeowners combine the two jobs and go straight to external wall insulation with a render finish. See Building Regulations explained for the wider picture.

Should you render?

Rendering makes most sense on homes that are already rendered or pebbledashed, on mismatched or repaired brickwork, or where you are adding external wall insulation and finishing it with render. On an attractive period brick property, covering original brickwork can reduce character and value.

One caution worth repeating: render is not a damp cure. Sealing a solid wall with a non-breathable cement render can trap moisture inside and make matters worse, so find the cause first. Our guide to damp causes and fixes explains how.

GS Renovation carries out rendering as part of exterior renovations and external wall insulation across all of London, alongside full home renovation. For a free quote, contact us or call 07472 424 226.

For how a job like this is contracted and staged, see what to check before hiring any London builder.