Glass in Chatswood collects two very different things. Near the centre it is fine construction dust, which travels a long way and works into the surface rather than resting on it. Further west it is sap and pollen off the canopy, on the big garden-facing windows these houses are built around.

Window cleaning in Chatswood follows the same split as everything else in the suburb.
Around the centre, ongoing development means fine cement and site dust in the air more or less permanently. It settles on glass as an even film and, being fine and slightly abrasive, works into the surface rather than sitting loosely on top. The walk-ups, townhouses and towers here have large glazed areas and balcony doors facing it, and upper-level glass on a strata building is rarely cleaned because ladder work over common property is usually restricted.
West of the highway the homes are built to look at the garden, which means large windows and sliding doors on the elevations under the turpentine and blue gum canopy. Those panes take sap and honeydew drip from directly overhead, plus spring pollen, both of which are sticky when damp and smear rather than wipe off. Aluminium sliding door tracks collect the same material along with fine grit.
Because these blocks fall away to the west, a house that is single storey from the street is frequently two or three storeys at the back, over a terrace or retaining wall.
Water-fed poles reach it from the ground, and the purified water dries clear with no spotting.
In Chatswood the obstacle to clean windows is usually not the dirt, it is reaching them.
On the strata buildings, ladder work over common property paths, garden beds and carpark aprons is generally restricted and rarely safe, which is why upper-level glass on so many blocks goes uncleaned for years. Reaching three storeys from the ground with a water-fed pole removes the access problem and the work-at-heights exposure the building would otherwise carry, and for an owners corporation clean, evenly finished glass across a whole facade is one of the cheaper ways to lift how a building presents.
On the freestanding homes the constraint is the topography. The best glass is on the downhill elevation, two or three storeys above a terrace or retaining wall, which is exactly where a domestic ladder cannot be safely footed. That glass is usually the reason the house was built the way it was.
There is a maintenance point on the tracks too. Grit and organic matter in aluminium sliding door tracks stiffens them and holds moisture in the drainage slots, and that becomes a repair rather than a clean.
Purified water leaves no detergent film for construction dust to key into.
Ongoing development puts fine cement and site dust into the air near the centre more or less permanently. It settles as an even film and, being slightly abrasive, works into the glass surface rather than resting loosely on top. Purified water rinses it off without leaving a detergent film for the next lot of dust to key into.
Yes. Ladder work over common property is usually restricted on Chatswood strata, which is why upper-level glass and balcony doors so often go uncleaned. Water-fed poles reach three storeys from the ground, which removes the access problem and the work-at-heights exposure for the owners corporation. Our team holds work-at-heights certification as well.
Glass, frames and sills, cleaned with purified water and dried spot-free. Under turpentine and blue gum, that means dissolving sticky sap, honeydew and pollen rather than smearing it. Glass two or three storeys up at the back, over a terrace or retaining wall, is reached from the ground. Interior glass is available on request.
It depends which side of the suburb you are on. Near the centre, construction dust settles almost continuously, so street and balcony glass dulls steadily all year. West of the highway, spring pollen and canopy sap drive it, so a clean after spring makes sense, with shaded garden-facing panes checked more often.
Water-fed poles, purified water and spot-free glass up to three storeys, without a ladder against your gutters.