Bathroom waterproofing

Bathroom Waterproofing in Wollongong

Of all the rooms in your house, the bathroom needs to be the most waterproof. We waterproof whole bathrooms, ensuites and laundries during renovations and repairs, before a single tile goes down.

Get a Free Quote Call 0432 685 338
  • Whole roomsnot just the shower
  • Licensedwaterproofing
  • Free quoteno obligation
A bright bathroom with twin stone basins and a freestanding bath
Waterproofing happens before the tiles.

A bathroom from above

Which Parts of a Bathroom Get Waterproofed

A shower is only one part of it. In Australia, the Standard for wet areas (AS 3740) sets out which areas need waterproofing and how. This is how it looks in a typical bathroom.

A bathroom plan showing the areas that are waterproofed Seen from above: the shower floor and walls, the whole bathroom floor falling to a floor waste, the walls around the bath, the splash area behind the vanity, and a water stop at the doorway. SHOWERBATHVANITYWC 123456
Main wet areasRest of the floorWater stop
  1. The showerIts floor and walls: the part of the room that takes the most water.
  2. The rest of the floorSo water that gets past the shower can't reach the structure.
  3. Around the bathThe walls and edges where water splashes and sits.
  4. Behind the basinThe splash area above the vanity.
  5. The doorwayA water stop, so water can't run out under the door.
  6. The floor wasteWhere the floor falls, and the membrane seals into the drain.

Every bathroom is different. We'll show you what yours needs when we quote.

Waterproofing is very black and white. Your bathroom is either waterproof, or it isn't.

Before the tiles

One of the First Steps, and the One Everything Relies On

When a bathroom is built or renovated, waterproofing is one of the first things to happen. It's a waterproof barrier around the walls and floor that protects the structure of your house from moisture.

Once the tiles are down you'll never see it again, so it has to be done properly the first time.

Blue waterproofing membrane across a bathroom floor and bath surround
Membrane across a floor and bath surround, before tiling

Where we work

Every Wet Area in the House

  1. 01BathroomsWhole-room waterproofing during a renovation.
  2. 02EnsuitesThe same care in a smaller space.
  3. 03ShowersWhen only the shower needs a new membrane.
  4. 04LaundriesFloors, tub surrounds and the doorway.
  5. 05ToiletsThe floor and around the pan.
  6. 06BalconiesTalk to us about leaking balconies.

Waterproofing During a Renovation

The membrane goes on after the strip-out and before the tiles. This is how it fits in.

Talk to Paul0432 685 338
  1. 01

    Strip-out

    Old tiles, beds and fittings come out, back to a sound base.

  2. 02

    Preparation

    Floors and walls are prepared, and falls to the waste are set.

  3. 03

    Corners and joins

    Bond breakers in the corners, and the waste and penetrations sealed.

  4. 04

    Membrane

    Applied across the floor and the wet-area walls, with a water stop at the door.

  5. 05

    Curing

    The membrane is left to cure properly before anything goes on it.

  6. 06

    Tiling and fit-off

    Tiles, grout, silicone and fittings, then a final check.

Bathroom Waterproofing Questions

The questions we're asked most about waterproofing a whole bathroom.

Ask us a question
Does the whole bathroom need waterproofing?

The shower always does, and the rest of the room needs protecting too, especially the floor, around the bath and at the doorway. Exactly what is required depends on the room and what the floor is made of. We'll show you what your bathroom needs when we quote.

How is this different from shower waterproofing?

Shower waterproofing covers the shower recess on its own, usually because its membrane has failed. Bathroom waterproofing covers the whole room, usually during a renovation. Shower waterproofing

Do you waterproof laundries, ensuites and toilets?

Yes. Any wet area in the house: bathrooms, ensuites, laundries and toilets, as well as balconies.

Can you waterproof over the existing tiles?

No. A waterproof membrane goes under the tiles, so the old tiles and bed come up first. That's why bathroom waterproofing is usually done as part of a renovation.

When does waterproofing happen in a renovation?

After the strip-out and preparation, and before any tiling. It's one of the first steps, and the one everything else relies on.

Do you do the tiling as well?

Yes. We tile bathrooms, ensuites, laundries and toilets, so the same team is responsible for the membrane and the finish on top. Tiling services

Tell Us About the Bathroom.

Let us know what you're planning and send a few photos of the room as it is now. Paul will call you back to talk it through.

Prefer to talk?0432 685 338
  • Free, no-obligation quotes
  • Send photos so we can come prepared
  • 25+ years of local wet-area experience
What do you need help with?

Choose one or more. Not sure is fine too.

Where are you?

We service Wollongong, the Illawarra and the South Coast.

Show us the problem

Optional, but it really helps. Up to 6 photos and one short video.

Add photos JPG, PNG or WebP, up to 10 MB each
MP4, MOV or WebM, up to 20 MB
When suits you?

A preference only. We'll call to confirm a time.

Preferred time
How can we reach you?

We only use these details to respond to your enquiry.

Thanks, we've got your request.

Paul will look over the details and get back to you shortly. If it's urgent, call 0432 685 338.

Back to the homepage

Renovating a Bathroom?

Get the waterproofing right first. Tell us about the room and we'll talk it through.

Get a Free Quote Call 0432 685 338