Balcony Waterproofing prices in Sydney

What moves the number

Four things, roughly in order. The area of the balcony. Whether the existing tiles have to be removed, which the Sydney market genuinely disagrees about and which depends on the condition of the bond underneath. Whether the falls have to be corrected rather than just re-membraned, since that is structural work rather than a coating. And access — on an apartment building, getting materials and people to a fourth-floor balcony can cost more than the membrane on it.

How you get a real figure

Someone inspects the balcony, taps the tiles, checks where water actually sits, and looks at the outlet and the door threshold. That produces an itemised scope you can compare against another quote. A number given over the phone before any of that is a guess with a decimal point.