How Often Should You Pressure Clean a Driveway in Wollongong?

Wollongong's coastal climate — salt air, high humidity and plenty of rain — means outdoor surfaces get dirty faster than most people expect. Driveways are no exception. Mould, algae, oil stains and general grime build up steadily, and before you know it, a once-clean driveway looks tired and neglected.

So how often should you pressure clean your driveway? The honest answer is: it depends on your property, your surroundings and how much traffic the driveway gets. But there are some solid guidelines that can help you plan. For professional driveway cleaning in Wollongong, read on.

Every 12 Months for Most Wollongong Homes

For the average residential driveway in Wollongong or the Illawarra, a professional pressure clean every 12 months keeps the surface looking good and prevents long-term build-up. Coastal suburbs like Thirroul, Austinmer and Wombarra tend to see faster mould and algae growth due to the salt air, so properties closer to the coast may benefit from cleaning every 9–12 months.

Further inland — in areas like Figtree, Dapto or Albion Park — you can usually stretch this to 12–18 months, particularly if the driveway gets plenty of direct sunlight. Sunlight naturally suppresses mould and algae growth, so north-facing driveways tend to stay cleaner for longer. The same goes for paver cleaning — pavers in shaded spots collect moss faster than ones in full sun.

Signs Your Driveway Needs Cleaning Now

Don't wait for a calendar reminder. These signs mean it's time to book a clean:

• Green or black staining — mould, algae or lichen has taken hold
• Slippery when wet — a safety hazard, especially for kids and older family members
• Visible oil or tyre marks — these only get harder to remove over time
• Faded, dull appearance — the surface has lost its original colour and depth
• Preparing to seal — a driveway must be thoroughly cleaned before applying a colour sealer

Why Regular Cleaning Matters

It's not just about looks. Built-up mould and algae trap moisture against the concrete surface, which can accelerate surface degradation over time. Oil and chemical stains can penetrate deeper the longer they sit, making them far harder — and more expensive — to remove later.

Regular driveway cleaning protects your investment and keeps the surface in good condition for years. If you're planning to seal your driveway, a professional clean is the essential first step — sealer won't bond properly to a dirty surface.

Professional Cleaning vs DIY

A domestic pressure washer from Bunnings can handle light surface dirt, but it won't match the results of commercial-grade equipment. Professional pressure cleaning removes deeply embedded grime, oil and organic growth that a home machine simply can't shift — and it does it in a fraction of the time. For a step-by-step look, see the best way to clean a dirty concrete driveway.

If you're in Wollongong, Shellharbour or anywhere in the Illawarra, professional pressure cleaning from ClearView Exterior Services is the easy way to keep your driveway looking its best. Get a free quote or call 0403 507 558.