RENDERING | HOUSE rENDERING

 

RENDERING in LONDON

CALL US NOW

House rendering is the process of applying a protective and decorative layer of cement, lime, acrylic, or polymer-based render to exterior walls. At ACRA Exterior Cleaning Services we specialise in high-quality rendering solutions to restore, protect, and enhance the appearance of homes across London.

What house rendering does

  • Weather protection: Render acts as a barrier against rain, wind, and damp, helping prevent water ingress and reduce the risk of structural damage and mould.

  • Thermal performance: When combined with external wall insulation (EWI) systems, rendering improves thermal efficiency and can reduce heating costs.

  • Aesthetic improvement: Available in a wide range of textures and finishes—smooth, textured, pebble dash, or through-coloured render—rendering refreshes facades and raises curb appeal.

  • Substrate repair: Modern renders can fill small cracks and compensate for minor irregularities in masonry or brickwork, creating a uniform surface.

Types of render

  • Cement render: Durable and strong; best for traditional builds but can be rigid and prone to cracking on unstable substrates.

  • Lime render: Breathable and flexible; suited to older buildings and conservation projects where moisture must escape through the wall fabric.

  • Acrylic/polymer render: Flexible, impact-resistant, and available in many colors; good for modern homes and areas with minor movement.

  • Silicone or mineral-based renders: Provide high water repellency and breathability; used where long-term protection is needed.

Typical rendering process

  1. Assessment: Inspect walls for structural issues, moisture, and substrate type. Determine suitable render mix and preparation required.

  2. Preparation: Remove loose paint, render, or render-adjacent contaminants. Repair cracks, repoint mortar, and apply a suitable primer or bonding agent.

  3. Base coat: Apply a scratch or base coat (often with reinforcement like fibreglass mesh on problem areas) to provide strength and key for the finishing coat.

  4. Finish coat: Apply chosen finish—smooth, textured, or decorative—then trowel and texture as required. Finish may be painted or through-colored.

  5. Curing and protection: Allow adequate curing time and protect newly rendered walls from rain, frost, and rapid drying.

When to choose rendering

  • Deteriorating or weathered exterior walls

  • Desire to change the appearance or color of a house

  • Improving insulation with EWI systems

  • Preserving older buildings where breathable lime renders are appropriate

Maintenance and lifespan

  • Correctly installed render can last 25 years or more, depending on material and exposure.

  • Regular inspections, prompt repair of cracks, and keeping gutters and downpipes functioning will extend lifespan.

  • Breathable renders (lime, mineral) require different maintenance than polymer systems—avoid impermeable paints on breathable systems.

Why choose a specialist

  • Correct material selection for the building’s age and substrate prevents long-term damage.

  • Professional surface preparation and reinforcement reduce cracking and failure.

  • Knowledge of conservation techniques ensures historic properties retain breathability and character.

ACRA Exterior Cleaning Services offers expert brick restoration, pointing, and rendering services tailored to each property. We assess the fabric of the building, recommend the most appropriate render system, and carry out preparation and application to high standards to ensure durable, attractive results. For a free assessment of rendering needs, contact our team to arrange an inspection.

We provide professional rendering services across London, including the following areas:

Aldgate
Alperton
Anerley
Archway
Balham
Bank
Barking
Barnes
Barons Court
Bayswater
Beckton
Belgravia
Belsize Park
Bermondsey
Bethnal Green
Blackfriars
Blackheath
Bloomsbury
Brent Cross
Brixton
Brockley
Camberwell
Camden Town
Canary Wharf
Canning Town
Carshalton
Chadwell Heath
Chalk Farm
Chancery Lane
Charing Cross
Chelsea
Cheshunt
Chigwell
Chingford
Chislehurst
Chiswick
City of London
Clapham
Clerkenwell
Cockfosters
Colliers Wood
Conduit Street
Covent Garden
Cricklewood
Crofton Park
Crystal Palace
Cutty Sark (Greenwich)
Dagenham
Dalston
Denmark Hill
Deptford
Dollis Hill
Drayton Park
Drury Lane
Ealing
Earls Court
East Dulwich
Eden Park
Edmonton
Elephant and Castle

Our rendering services include external wall rendering, repairs, silicone and lime renders, and full re-rendering. We deliver high-quality workmanship, using suitable materials for each building type, and ensure clean, durable finishes that improve weatherproofing and appearance. For an assessment or quote in any of these areas, contact ACRA Exterior Cleaning Services—specialists in brick restoration and associated finishes across London.