Service 05
Waterproofing
Compliant wet-area waterproofing for bathrooms, laundries and balconies — the critical layer that protects your build.
Waterproofing is the part of a job no one sees and everyone relies on. Done correctly, it protects your home from hidden water damage for decades; done poorly, it causes some of the most expensive repairs a homeowner can face.
Premium Tiling Services carries out wet-area waterproofing for bathrooms, ensuites, laundries and balconies in line with the relevant Australian Standards, before tiling begins — so the surfaces you do see are sitting on a layer you can trust.


What’s included
A complete tiling service.
- Bathroom and ensuite wet-area waterproofing
- Laundry and internal wet-area waterproofing
- Balcony and external waterproofing
- Shower recesses, hobs, falls and floor wastes
- Carried out to the relevant Australian Standards
- Completed before tiling as part of a coordinated job
Questions
Waterproofing — your questions answered.
Why is waterproofing so important?
Because water that escapes a wet area has nowhere good to go. Without sound waterproofing, moisture can reach wall framing, flooring and the structure of your home, causing damage that is hidden until it is serious — and expensive to repair. Waterproofing is the barrier that keeps water where it belongs. It is never a place to cut corners, which is why we treat it as a core part of every wet-area job.
Do you waterproof to Australian Standards?
Yes. Wet-area waterproofing is carried out in line with the relevant Australian Standards covering showers, floors and splash zones. Those standards exist because water damage is so costly and so preventable. We are happy to explain what gets waterproofed in your bathroom or laundry and why, so you understand exactly what the job includes and can have confidence in the result.
When is waterproofing done — before or after tiling?
Before. Waterproofing is applied to the prepared surfaces and allowed to cure before any tiling begins, because it is the membrane the tiling sits on top of. This is why waterproofing and tiling work best as one coordinated job with a single trade responsible — the sequence and timing matter, and doing both together keeps the whole wet area sound.
Which areas of a bathroom need waterproofing?
At a minimum, the shower recess and the areas most exposed to water, with the floor and lower walls treated according to the standards for the room. Hobs, step-downs, niches and the area around the floor waste all need particular attention. We will walk you through exactly what is being waterproofed in your bathroom during the quote so nothing important is left unclear.
Can you re-waterproof an existing bathroom?
Re-waterproofing an existing bathroom generally means removing the existing tiling and surfaces to reach the substrate, since the membrane sits beneath the tile. It is most often done as part of a renovation. If you are concerned about an existing wet area — for example, signs of damp or a failing shower — we can inspect it and talk through the options honestly.
Do laundries and balconies need waterproofing too?
Yes. Laundries are internal wet areas and balconies are exposed external areas, and both need proper waterproofing to protect the structure around and below them. Balconies in particular can cause significant damage if water gets through to the level beneath. We waterproof these areas as part of the tiling job, with the falls and drainage they need.
How long does waterproofing take to cure?
Waterproofing membranes need time to cure fully before tiling can begin on top of them, and the exact time depends on the product and the conditions on site. We build that curing time into the project schedule rather than rushing it, because tiling over a membrane before it is ready undermines the whole point. We will factor it into the timeline we give you up front.
Ready when you are
Get a free, no-obligation tiling quote.
Tell us about your space and we’ll measure, advise and quote — no pressure.