How Long Does Pressure Washing Last?

Hi, I’m Andrew – I run Power Wash Pro, and I do all the cleaning myself. One of the most common questions I get from customers is:

"How long will it stay clean once you’ve done it?"

It’s a great question – and like most things, it depends. But here’s an honest answer based on years of experience cleaning driveways and patios across Thame, Marlow, Beaconsfield and the surrounding areas.

What affects how long it lasts?

The short answer: it depends on the surface, the shade, and the setup. Here’s what really makes a difference:

• The material – Block paving, sandstone, concrete – each behaves differently
• Shade and sunlight – North-facing or tree-covered areas attract algae faster
• Drainage – Poor drainage lets moisture sit and accelerates regrowth
• Ongoing upkeep – A light sweep or rinse now and then can make a big difference

How long does a clean typically last?

Surface Type	"Like New" Look Typically Lasts
Block paving	8-12 months (if properly re-sanded)
Indian sandstone	6-12 months (more in shaded areas)
Concrete driveways	12-18 months (longest-lasting)

What helps it last even longer?

Here’s what I’d recommend if you want to keep your outdoor surfaces looking cleaner for longer:

• Sweep away leaves and debris regularly – especially in the autumn
• Give algae-prone areas a quick rinse with the hose now and then
• If you’ve had block paving re-sanded, avoid jet washing it yourself afterwards – it blows the sand straight back out
• Optional: Apply a biocide treatment – After pressure washing, I can apply a biocide solution that kills off remaining organic growth and slows it returning. This can noticeably extend how long your patio or driveway stays clean – especially in shady or damp areas.

Is it worth it?

Absolutely. A professional pressure wash can completely transform the look of your home – and while it won’t stay spotless forever, most of my customers are pleasantly surprised by how long the results last.

If you’re in Thame, Marlow, Beaconsfield or nearby, I’d be glad to take a look and give you an honest quote.

📲 WhatsApp me directly or get a quick quote here:
www.powerwashpro.uk/get-a-quote