Waterproofing in Melbourne

Waterproofing is the trade you never see and always live with. It sits under the tiles, behind the walls, and it decides whether a bathroom is still dry in fifteen years. Failed membranes are among the most common and most expensive defects in Australian homes.

Whether you are building a new bathroom or chasing a leak into the room below a balcony, this is specialist work with its own standards, and it is worth quoting separately rather than burying it inside a tiling price.

Scope of work

What waterproofers quote on here

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Common questions

Waterproofing questions, answered straight

My shower leaks into the wall. Does the bathroom need gutting?

Not always. Where tiles and substrate are sound, leaking showers can sometimes be remediated with epoxy grout and sealing systems from above. Where the membrane has genuinely failed, partial or full strip-out is the honest fix. Get both options priced and ask about warranty on each.

Is there a standard for wet area waterproofing?

Yes, Australian Standard AS 3740 covers waterproofing of domestic wet areas, and building work must comply. Ask whoever quotes to confirm their membranes and details meet the standard and what documentation you receive at the end.

How long does a membrane need before tiling?

Depends on the product: many need one to several days of curing across multiple coats before tiles go on. Rushing this stage is a classic cause of failure, which is why the waterproofer and tiler need to coordinate, not compete.

The unit below my balcony has a damp ceiling. Where do I start?

Start with a waterproofer experienced in balconies, and photos of the balcony surface, edges and any drains. In apartments, also loop in the owners corporation early since membranes are often common property.

Often booked together

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