Dirty render?
Clean it — don't
paint over it.
Red Clean restores render on homes and commercial buildings using professional soft-wash techniques. City & Guilds trained, fully insured, and trusted by local authorities and render manufacturers.
- Safe soft-wash method — no damage to any render type
- Works on silicone, monocouche, acrylic and all major brands
- Removes algae, moss, staining and biological growth
- City & Guilds trained — recommended by render manufacturers
🏠 Domestic
Before
After
🏢 Commercial
Before
After
The results speak for themselves
See the difference a professional clean makes
The same render, no repainting, no replacement. Just a professional clean.
🏠 Domestic
Before
After
🏢 Commercial
Before
After
Why it matters
Painting over dirty render
is money down the drain.
Most homeowners assume repainting is the answer. It isn't — and if the render isn't clean first, the paint will fail faster than you think.
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Paint won't bond to dirty render
Algae, moss and biological growth create a layer that prevents paint from adhering properly. Paint applied over contaminated render typically starts peeling within one to two years, wasting hundreds of pounds.
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Algae actually eats into the render
Biological growth isn't just cosmetic. Algae and moss roots work into the surface of the render over time, breaking it down and allowing moisture to penetrate — leading to cracking and costly repairs.
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Moisture retention causes structural damage
Contaminated render holds moisture against the wall. In winter that moisture freezes, expands, and accelerates cracking — turning a cleaning job into a repair job.
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Kerb appeal and property value
Green or stained render is one of the first things buyers and surveyors notice. A clean, well-maintained exterior adds perceived value and removes a potential bargaining chip for buyers.
Average render repaint cost
£3,500
A professional render clean is a fraction of that cost — and it removes the contamination that causes paint to fail. Most of our customers say they had no idea cleaning was even an option before they found us.
Get a Free Quote →What you get
A complete restoration.
Every job.
We do not just pressure wash and leave. Every render clean is a full treatment that removes contamination, kills the source, and protects the surface.
Soft-wash cleaning
We use low-pressure soft-washing rather than high-pressure jets, which protects the render surface while achieving a far deeper clean than pressure washing alone.
Biocide treatment
Professional biocide applied after cleaning kills algae, moss and lichen at the root, slowing future regrowth and extending the life of your render significantly.
All render types covered
Silicone, monocouche, acrylic, K-rend, Weber — we work with all major brands and tailor our chemical mix to the specific render type on your property.
Recommended by manufacturersDomestic & commercial
From a single-storey home to a large commercial building. We deploy the right access equipment — cherry pickers, scaffolding — and have the team size to match any project.
City & Guilds trained
Our team is certified to City & Guilds standards in the safe handling and application of chemical cleaning agents — protecting your property, your garden, and the environment.
Fully insured
Public liability insurance as standard for every job. Trusted and recommended by local authorities and render manufacturers across the region.
How it works
Three steps to restored render
Free survey & quote
We visit your property, assess the render type and level of contamination, and give you a fixed price with no obligation and no call centres.
We clean the render
Our team arrives on the agreed date and carries out a full soft-wash clean, removing all biological growth, staining and contamination from the surface.
Biocide & sign-off
Biocide is applied to kill remaining spores and protect against regrowth. Before and after photos are sent to you the same day.
Prices start from
£300
For a typical semi-detached home. Final price confirmed after your free survey — it depends on property size, render type, and level of contamination. No surprises on the day.
- Full soft-wash clean of all render surfaces
- Biocide treatment to slow regrowth
- All render types covered
- Before & after photos provided
- Full site clean-up included
- No hidden charges or extras
Get your fixed price today
We assess your property and give you an exact quote. No pressure, no follow-up calls if you decide it is not for you.
Request a Free Quote 📞 Call 01908 382015What customers say
Trusted by homeowners and businesses
Rated 4.7/5 on Google
"Our render had gone green over the years and I had assumed we would need to repaint. Red Clean came out, explained that a clean would restore it without painting, and the results were incredible. It looks brand new and cost a fraction of what a repaint would have."
"We had Red Clean clean the render on our office building. Professional team, turned up on time, and the finished result was excellent. The building looks completely different. Would not hesitate to recommend them for commercial work."
"Brilliant service from start to finish. They explained exactly what they were doing and why, which I really appreciated. The render on our new-build had gone badly stained and they restored it completely. Very happy customers."
"I was about to spend thousands repainting the render on my house when a neighbour suggested getting it cleaned first. Red Clean came out and transformed it. The team were polite, thorough, and left everything spotless. Wish I had done it sooner."
Common questions
Everything you need to know
Get Your Free Render Cleaning Quote
Response within 2 hours during business hours
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Ready to restore your render?
Free survey, fixed price, no obligation. Clean it properly before you even think about repainting.