NSW contractor licence 260823C· Waterproofing Technician since 2013
Mon–Sat 7am–4pmAcross Greater Sydney
Prices, the standards, laundries, walk-in showers, strata bathrooms, certificates and leaking balconies, answered by a licensed Sydney waterproofer.
Prices
Cost8 min read
What a bathroom membrane, a leaking shower, a balcony and a pool retile typically cost in Sydney, including GST, and what a written quote should list.
Bathrooms5 min read
If the shower or floor tiles come off, the membrane under them is redone. When walls can be retiled alone, what moves the cost, and the order of trades.
Pools5 min read
What moves the price, and why the shell is waterproofed before the new tiles go on.
The rules
Standards10 min read
AS 3740:2021 for showers, bathrooms and laundries; AS 4654.2 for balconies and flat roofs. What each asks for, how NCC 2022 applies in NSW, and licences.
Certificates7 min read
What a NSW waterproofing certificate should state, who can sign it, when a certifier asks for it, and how it ties in with the statutory warranties.
Showers7 min read
Walk-in and hobless shower regulations: a waterstop at the edge, falls of 1:80 to 1:50 to the waste and walls waterproofed to 1800 mm. With or without a screen.
Laundries7 min read
Laundry waterproofing requirements in NSW: the floor, wall junctions and the wall beside a tub must be water resistant. When a membrane is required, and why.
Strata5 min read
A strata bathroom renovation in NSW is major work needing a special resolution. How approval works, and who is responsible for the waterproofing afterwards.
Problems
Balconies6 min read
Most balconies leak at a detail: the door sill, an outlet, a post or the upturn. How to tell, when a local repair works, and who pays in a strata building.
Below ground6 min read
Positive-side waterproofing keeps the wall dry; negative-side keeps the room dry while the wall stays wet. When each fits a basement, lift pit or wall.
Lifespan6 min read
No membrane has a single lifespan: most fail early at a corner, drain or sill. How the membrane types differ, and the signs one is failing.
