The membrane looked at before a single tile covers it.
One of our inspectors will call you back. If it is urgent, call 1300 471 805.
A typical Tallawong double storey has two or three bathrooms upstairs and often a balcony over a living room, so a failed membrane leaks onto a ceiling rather than a slab. The finding that started our November 2025 Tallawong investigation was water, and it traced back to things a waterproofing inspection would have caught: missing puddle flanges and paint over the membrane.
Annotated findings from Waterproofing inspections.
1Bored piersPiers drilled and cages in, concrete not yet ordered
2Slab pre-pourSteel, pods and membrane in place, the day before concrete
3FrameFrame standing and roof on, before any wrap or lining
4Lock-up (pre-plaster)Walls, roof and external doors done, plaster not yet hung
5FixingDoors, stairs and joinery fitted, painter booked next
7Pre-handover (PCI)About two weeks ahead of the handover dateInstant online pricing, or talk to the booking team on 1300 471 805.
A strip or bead at a corner that lets the membrane flex without tearing as the walls and floor move. AS 3740 requires it at internal junctions.
Each one is a path for water through the membrane. They are sealed with another coat before tiling and impossible to find after.
It connects the floor waste to the membrane so water that gets under the tiles still reaches the drain rather than the slab or the room below.
Yes, where the membrane is on. We check the outlet, the overflow and the membrane turned up at the door.
About an hour for a typical house with three wet areas.
AS 3740 for internal wet areas, AS 4654.2 for balconies and external membranes, and the National Construction Code.
