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Soft washing for rendered homes in Sussex, Surrey and South London
Green algae, black streaks under the gutters and red patches can build up on house render surprisingly fast. Our soft washing services clean it with a low-pressure wash and a biocide that kills the growth at the root, so the colour and texture of your render stay intact. It’s safe for K Rend, monocouche, silicone and painted render.
For a complete refresh, see our residential window cleaning and residential gutter cleaning services.
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Residential Render Cleaning
From £99
Fixed-price residential render cleaning with gentle biocide soft wash — safe for K-Rend, silicone, monocouche and painted finishes. Before/after photos included. Fully insured.
Get a free quote for your homeStarting price applies to standard single-elevation residential walls under 30m². Full-house or multi-storey work quoted individually — always via free survey.
Why render goes green, black and red
Shaded walls, north-facing elevations and walls behind hedges stay damp for longer, which gives algae and moss an easy foothold.
Rain then carries fine dirt down the wall, leaving green patches on shaded walls, black streaks under gutters and red or orange patches that are usually algae.
Render like K Rend is through-coloured and breathable, which also makes it easy to damage with a pressure washer.
What a professional soft wash looks like
We cover plants and protect downpipes and electrics, then apply the cleaning solution at about the pressure of a garden hose. It sits for 10 to 20 minutes, depending on the weather and staining, and then we rinse it off gently.
Green growth usually goes the same day. Red fades over a few hours, and black streaks keep softening for a few days as the biocide finishes working.
Method statement: clear steps for access, application and rinsing.
PPE: gloves, goggles and protective clothing for our operators.
Protection: sheeting over beds and borders, and downpipes protected.
Rinsing: a thorough low-pressure rinse, and plants rinsed down afterwards.
Why we don’t pressure wash render
Render manufacturers advise against high-pressure washing on K Rend and monocouche. It can etch and streak the surface, and an etched patch on through-coloured render is hard to repair. A soft wash kills the spores instead of just blasting them off, so the render stays clean for longer between washes.
Related Cleaning Services
While we focus on render cleaning, many homeowners find that other areas of their property also need attention. From windows, gutters to roofs, we can help you keep your entire home looking its best. Explore our related services below to ensure every surface shines.
Conservatory Cleaning
Gutter Cleaning
Roof Cleaning
Rendered Wall Cleaning
Residential Pressure Washing
From £59
Driveways, patios, paths and decking restored to looking new. Professional pressure and soft-wash techniques remove moss, algae, oil stains and weathering — without damaging the surface. Fully insured, fixed price before we start.
Book your home pressure washStarting price applies to small paths and single-car driveways. Larger driveways, patios, decking, and heavily soiled areas priced individually — always quoted before we begin.
What our customers say on Google
★★★★★ 5.0 · 13 verified Google reviews
“It’s made a huge difference to the school, really pleased with the result”
John / Oasis Academy Coulsdon
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Render cleaning questions
How often should render be cleaned?
Every 3 to 5 years is typical, or sooner for shaded walls and homes near the coast.
Does it harm plants and lawns?
No. We cover and wet down plants before we start, and rinse them off afterwards.
Do we need scaffolding?
Usually not. Long-reach poles or a small access platform reach most walls.
Can you clean render in winter?
Yes, on mild, dry days. We adjust how long the solution sits to suit the temperature.
How long before the walls look clean?
Green usually goes the same day, and red within about 24 hours.
Is it noisy or disruptive?
No. The equipment is quiet and compact, and we work around you if you’re at home.
