Why your Sydney windows haze up between cleans
That haze isn't streaks. Spring pollen and airborne harbour salt bond into a thin, even film that grips the glass and cuts the light coming through — domestic cloths and spray just smear it around. A pure-water clean lifts it properly. Window cleaning starts at $150, and homes near the water need it far more often than inland streets.
The film you're looking through, not at
Stand at a hazed window on a bright morning and the light looks flat, like it's coming through gauze. That's not dust sitting on top and it's not a streak from the last clean. Spring pollen lands sticky, harbour salt arrives on the wind, and the two bind into a thin, even film across the whole pane. It grips the glass rather than resting on it. The give-away is uniformity — a smear has edges, this doesn't.
Reach for a cloth and spray and you confirm it. The glass goes clear for a second under the wet, then dries back to the same flat haze. You haven't removed the film; you've wetted it and pushed it around. Household glass cleaner is built for fresh fingerprints and splashes, not for a bonded mineral-and-organic layer. That's why the honest verdict from most homeowners is the same — the windows look worse after cleaning than before, because now the smear has direction.
The harbour sets the clock
Distance from salt water is the single biggest driver of how fast the film returns. On the North Shore ridges and the inland streets of the Eastern Suburbs, a clean holds for months. Drop down toward Manly, Mosman, Vaucluse or anything with a water view and the same glass hazes over in weeks. The wind carries fine salt aerosol off the harbour and the ocean, it settles on the pane every dry day, and it doesn't wait for you to notice.
Pollen is seasonal — it spikes through spring as the paperbarks, wattles and grasses let go, then eases. Salt is year-round, worst when onshore winds run for days. Put them together in September and October and you get the fastest hazing of the year. The practical read: a waterfront home wants its windows done several times a year, an inland home once or twice. Cleaning to a fixed annual date ignores where you actually live.
Pure water is what lifts it
A pure-water clean is the fix because it works chemically, not just mechanically. Water is run through a filter that strips out every dissolved mineral, then fed up a brush on a pole. The brush agitates the bonded film loose and the ultra-pure water carries it off the glass. Because there's nothing dissolved in that water, it dries with nothing left behind — no detergent film, no mineral spots, no cloth marks in the corners. The pane dries clear on its own.
That's the difference from a domestic wipe. Tap water leaves its own minerals as it dries, which is half of what you're seeing as haze in the first place. Detergent leaves a residue that attracts the next round of dust. Pure water leaves nothing, so the glass stays clear longer and the film has less to grab onto when it starts building again. It's the same reason the frames and sills come up properly — the brush reaches what a squeegee skips.
The haze we lift, and the etch we can't
Here's the line we won't cross. Most hazing is a film on top of the glass, and it comes off. But glass that has sat under salt spray for years, unwashed, can be etched — the salt has actually attacked the silica surface and left it microscopically pitted. That's not a film any more; it's damage to the glass itself. No clean removes it, ours included, because there's nothing sitting on the surface to remove. The cloudiness is in the glass.
You can usually tell them apart. Film haze is even, wettable and clears the moment it's wet. Etch tends to sit in patches, often on the weather side, and stays cloudy even under water because the surface is roughened. If we see etching, we'll say so rather than sell you a clean that can't win. The good news is that regular washing is exactly what prevents it — salt that's rinsed off every few months never gets the years it needs to etch.
What it costs, and how often you'll want it
Window cleaning starts at $150. Most single-storey homes land between $150 and $550, set by how many panes you have; a second storey adds around 40% for the access. If the windows are hazing this fast, the glass is rarely the only thing catching salt — bundling the house soft wash or the gutters onto the one visit saves between 5 and 15%, and the Schmick Plan rolls a regular cadence into a monthly fee from $89 so the film never gets a run-up.
The part worth knowing is that you don't have to wait for someone to come and look. The Schmick instant quote takes your address and window count and returns a firm, bookable price in about 60 seconds — not a range, a number, and it holds unless the place is materially different from what you told us. Put your details in, see what a proper clean costs, and pick a cadence that matches how close you are to the water.