Rendering & External Walls
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Our Specification

Rendering & External Walls

We render and reinstate external walls across London: traditional sand-and-cement render, modern through-coloured silicone and monocouche systems, crack and blown-render repair, pebbledash removal, masonry painting and weatherproofing. We prepare backgrounds properly so render bonds and lasts, rather than cracking and blowing off within a few winters.

Written Guarantee: 10 Years
Average Timeline Range: 3 days - 3 weeks

Render Systems Matched to the Wall

Render fails when the wrong system meets the wrong wall, or when it is applied over a background that was never prepared. We start by assessing what is behind it: solid brick, block, an existing painted render, or an insulated background each demands a different approach, and a period solid wall needs a breathable finish rather than a sealed cement skin that traps damp. For traditional repairs we apply sand-and-cement render in correctly proportioned coats with the right beads, stop edges and movement joints, finished smooth, floated or textured to match the elevation. For new finishes we install modern through-coloured systems — silicone and monocouche renders — that need no painting, shrug off rain and resist algae, available in a wide colour range. On period and listed properties we specify lime render where the wall needs to breathe, and we say so honestly rather than defaulting to cement because it is quicker.

Crack Repair, Blown Render and Pebbledash Removal

Most rendering work in London is repair rather than new application. Cracked and blown render — where it has lost its bond and sounds hollow when tapped — lets water in behind the surface, where it spreads, freezes and pushes more render off the wall. We hack off failed and hollow areas back to a sound edge, treat and prepare the background, and re-render to match the existing finish and profile, feathering repairs in so they are not obvious patches. Pebbledash and old textured coatings are a common request to remove — they date a property, trap damp and hide the brickwork beneath. We strip them back carefully, assess the masonry revealed, and either repoint and leave the brick exposed or re-render in a modern smooth finish, depending on the wall’s condition and your preference. Hairline cracks in sound render are cut out, filled and over-coated; structural cracks are investigated first, because rendering over live movement only hides it briefly.

Masonry Painting and Weatherproofing

A rendered or masonry wall is only weatherproof while its coating is intact, and London’s rain, pollution and frost work steadily against it. We repair and redecorate masonry and render with breathable masonry systems matched to the substrate, never sealing a damp-prone solid wall under an impermeable film that blisters and peels within a season. Preparation is the job: we clean down algae and dirt, treat organic growth, stabilise chalky and friable surfaces, fill and repair before any colour goes on, and cut in neatly around windows, copings and roofline. Where weatherproofing is the priority — exposed gable walls, chimney stacks, parapets taking the brunt of driving rain — we apply breathable water-repellent treatments that keep liquid water out while still letting the wall dry. All external rendering and masonry work is quoted with access included, whether tower, scaffold or rope access, and carries our workmanship guarantee.
Standards & Compliance

Every project is delivered to current British Standards and Building Regulations, with works documented for building control and HMO licensing sign-off — backed by fixed written quotes and a written guarantee.

BRITISH STANDARDS · BUILDING REGS COMPLIANT · FD30/FD60 FIRE DOORSETS · BS 5839-6 ALARMS · WRITTEN GUARANTEE

Frequently Asked Questions (FAQ)

How much does rendering cost per square metre in London?

Rendering typically costs £45–£90 per square metre depending on the system and access: traditional sand-and-cement render at the lower end, through-coloured silicone and monocouche systems at the upper, plus access costs for scaffolding or towers. Repairs to cracked and blown areas are priced per job after inspection. We quote fixed prices rather than rough day rates.

Why does render keep cracking and falling off my wall?

Usually because it was applied over a poorly prepared or unsuitable background, in the wrong system, or over live structural movement. On older solid walls, cement render that cannot breathe traps damp and blows off. We hack back failed render to a sound edge, prepare and bond the background properly, and match the right system to the wall — which is why our repairs do not simply blow again.

Can you remove pebbledash from my house?

Yes — pebbledash and dated textured coatings are commonly removed. We strip them back carefully, assess the brickwork or masonry underneath, and then either repoint and leave the brick exposed or re-render in a smooth modern finish, depending on the wall’s condition and the look you want. We will advise honestly on which option suits the property before starting.

What is the difference between silicone render and sand-and-cement?

Sand-and-cement is the traditional render, applied in coats and then painted, and it is well-suited to repairs and matching existing work. Through-coloured silicone (and monocouche) renders carry their colour throughout, so they never need repainting, and they are more breathable and far better at shedding rain and resisting algae. Silicone costs more up front but saves the repainting cycle.

Our Written Guarantee

We provide a fully comprehensive, written 10-Year guarantee covering all structural reinstatement, moisture boundaries, and finish coatings.

100% Insurance Protected

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