Balcony Waterproofing in Mascot

Mascot is 74.3 per cent flats — 6,026 apartments out of 8,085 dwellings — and it is the only suburb on this site with a Bureau of Meteorology rainfall station of its own.

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Balcony Waterproofing around Mascot

The Sydney Airport station has been recording here since 1929 and is still open. Its long-run averages show the same shape as the city as a whole: rainfall peaks in March at 122.9 mm and again in June at 124.1 mm, and falls to 60.4 mm in September. June is roughly double September.

That is not trivia. A balcony membrane that has failed does not reveal itself in a single storm — it reveals itself after several days of steady rain, and in Mascot the months that deliver that are March through June rather than the summer. Enquiries here follow the rainfall curve, and a balcony inspected in a dry September can be leaking badly by autumn.

A row of three- and four-storey liver-brick and blond-brick walk-up apartment blocks receding along a street, each with empty undercroft parking behind its own concrete driveway crossover — illustrative example

Permits and Bayside Council rules

Bayside Council is the council for Mascot, and its current requirements should be confirmed directly with it. At state level the Design and Building Practitioners Act 2020 names waterproofing as a building element and treats repair of a prescribed building as building work, with class 2 apartment buildings prescribed. At 74.3 per cent flats, the majority of Mascot balconies sit on the kind of building that regime was written for.

Source: Design and Building Practitioners Act 2020 (NSW) s 6(1)(b), s 4(1)(c); Bureau of Meteorology station 066037 (Sydney Airport) for the rainfall figures above — confirm current requirements with Bayside Council.

Timing and lead times in Mascot

Mascot can be specific about this where other suburbs cannot, because the rainfall figures above are measured here rather than nearby. The March and June peaks and the September trough are the local record from the station in this suburb, not a city-wide estimate, and they are the months in which a failing balcony membrane makes itself known.

Our Mascot service area

We take balcony waterproofing enquiries across Mascot and the surrounding Bayside area.

See all Balcony Waterproofing in Sydney. We also work in Mascot and Kogarah both sit within Bayside Council, though Kogarah is split with a second council to its south..