19/07/2026
🦷 What is soft washing?
Think about brushing your teeth.
You don’t blast them clean with a pressure washer—you apply toothpaste, let it do its job, then gently brush away the bacteria and stains. Soft washing works in exactly the same way.
A specialist cleaning solution is applied to the surface, allowing it to kill algae, mould, mildew and other organic growth before the surface is gently rinsed. This cleans the render without the damage that high pressure can cause.
Monocouche and other rendered finishes are especially prone to algae and mould. Over time, the surface slowly weathers, becoming slightly rougher and more porous. That creates the perfect environment for moisture to linger and for organic growth to take hold.
One thing I always explain to customers is that clean doesn’t always mean “brand new.”
When the algae and mould are removed, you may notice “ghosting” or shadow marks. These aren’t dirt left behind—they’re usually areas where the render has weathered differently over the years or where the original render or protective coating wasn’t completely uniform. The organic growth was simply hiding those natural variations.
The good news is that the biological contamination is gone, the surface is sanitised, and the property looks brighter, cleaner and healthier.
Every home is different, and I’d always rather set honest expectations than promise the impossible.
📞 Kenny’s Outdoor Cleaning
087 994 4714