Why Your Patio Keeps Going Green (And How to Stop It Without a Jet Wash)
If you’ve ever stepped outside on a spring morning, coffee in hand, ready to enjoy your garden… only to be greeted by a green, slippery patio, you are not the only one.
It doesn’t matter how nice your paving is. Porcelain, block paving, and natural stone, if it lives outside in the UK, it will eventually go green. The good news? It’s completely normal. The even better news? It’s also very easy to fix (and prevent).
Let’s talk about what’s really going on and how to deal with it without scrubbing, blasting, or ruining your patio in the process.
Why Does My Patio Go Green?
Short answer: moisture + shade + spores = algae and mould heaven.
Your patio is basically the perfect little holiday destination for algae, mould and lichen spores. They float around in the air, land on your paving, and the moment they find moisture and shade… they move in.
That green film you see creeping across your slabs? That’s algae.
Those darker patches? Mould.
Those stubborn black dots? That’s lichen and it’s tougher than it looks.
And once they’ve arrived, they don’t politely leave on their own.
Why Jet Wash Isn’t the Magic Fix People Think It Is
Jet Washers look brilliant on Instagram. In real life? They often cause more problems than they solve.
Here’s why:
- They blast away the visible growth, but not the spores underneath
- They roughen your paving, which actually gives algae more places to grow back
- On block paving, they wash out the jointing sand (hello weeds)
- And the green stuff often comes back faster than before
So while it looks clean for a few weeks, you usually end up stuck in a cycle of “clean, regrow, clean, regrow”.
Not exactly low-effort living.
The Better Way: Treat the Cause, Not Just the Colour
Instead of attacking what you can see, the smarter approach is to deal with what you can’t see - the spores.
A good mould, lichen and algae remover works by soaking into the surface, killing the spores that cause the growth in the first place. That means:
- No scrubbing
- No pressure washer
- No damage to your paving
- And far longer-lasting results
This is where our patio cleaner comes into its own. Try it out for yourself!
By using a proper patio cleaner that tackles mould, lichen and algae at the root, you can keep your garden looking fresh, safe and welcoming… without jet washing, harsh chemicals or endless weekend chores.
Your future self (and your knees) will thank you.
