Slippery paths in winter: the moss problem underfoot
Moss and algae on shaded paving are a genuine slip hazard in winter — wet, green and often near-invisible until you're standing on them. The fix is a proper pressure clean followed by a treatment that slows regrowth. Schmick cleans paths and driveways from $180, with most jobs landing between $180 and $420 by area, priced firm through the instant quote.
Winter grows the hazard while you're not looking
Moss and algae love exactly the conditions a Sydney winter serves up: low sun, long shadows, damp that never quite dries. The south side of the house, the path under the jacaranda, the steps the sun stopped reaching in May — that's where the green film settles. Concrete and pavers hold moisture all day, and the growth spreads in a layer thin enough that you often don't see it until you're standing on it.
Dry, that layer is mostly harmless. Wet, it behaves like ice. Algae forms a slick film that takes traction to almost nothing, and winter mornings keep paving wet until lunchtime. Add a slope or a couple of steps — most North Shore blocks have both — and you have a genuine hazard, not a cosmetic one. For older residents the stakes are higher again: a slip on paving is the kind of fall that changes a year, not a morning.
The strip out the front is quietly yours too
Your own path is your problem, obviously. But the footpath and nature strip fronting the house get traffic you don't control — delivery drivers, dog walkers, the neighbour's kids on scooters. Councils generally expect residents to keep that strip in reasonable shape, and if someone goes down on a slick of moss at your front gate, the questions that follow land at your address. We'll leave the legal detail to the lawyers. The practical point stands: green paving at your boundary is worth dealing with before winter, not after.
Inside the fence, think about who actually uses the paths. The side passage to the bins gets walked in slippers at six in the morning. The front steps get taken with both hands full of groceries. Visiting parents move slower and trust the surface more than they should. None of this needs alarm — it needs a surface with actual grip, which is what the paving had before the moss moved in and what it goes back to after a proper clean.
A pressure clean resets the surface — it doesn't move the shade
A proper pressure clean strips the moss, the algae and the embedded grime right back to the original surface, and the traction comes back with it. The pressure has to match the material: concrete and clay pavers take a firm clean, while older sandstone and soft stone get a gentler treatment, because blasting them does more harm than the moss ever did. Done right, the difference underfoot is immediate — the path grips again, and looks ten years younger as a side effect.
Here's the honest part: the shade that grew the moss is still there, and moss will eventually return to a damp, shaded path no matter who cleans it. What changes is the timeline. A post-clean anti-growth treatment kills the spores that pressure alone misses and slows regrowth considerably, and sealing the surface makes the next clean easier and later. A shaded southern path might still want attention each winter. A treated, sealed one asks far less often.
The number, and the sixty seconds it takes to get it
Path and driveway pressure cleaning starts at $180, and most jobs land between $180 and $420 depending on area. Sealing is a set add-on with a set price, not a mystery line item. A standard shaded side path usually sits at the bottom of the range; a full driveway with growth in the joints sits higher. And if the gutters or windows need doing on the same visit, bundling services saves 5-15% — the gear is already off the truck.
You don't need to wait for someone to come and look at it. The Schmick instant quote asks a few questions about the place and returns a firm, bookable price in about sixty seconds — and it holds unless the property is materially different from what you told us. Winter is the season the moss does its best work. Get the number, book the clean, and let the path go back to being the least interesting surface on the property.