Waterproofing in Auckland — Done Before the Tiles
The invisible step that protects everything above it — sealed to code, cured properly, done right.
If the waterproofing fails, the tiles come off. That’s why Tarara Tiling treats waterproofing as the foundation of every wet area, not a box to tick. Led by Marko, an approved PS3 Producer Statement author, we waterproof bathrooms, showers, laundries and wet rooms across Auckland to the New Zealand Building Code — before a single tile is laid.
Every job we finish is backed by a 10-year workmanship guarantee.
PS3-Approved Wet-Area Waterproofing
Protect your investment with professionally installed waterproofing by an approved PS3 Producer Statement author. Tarara Tiling provides waterproofing systems for bathrooms, showers, laundries and other wet areas using trusted products — installed with meticulous attention to detail to create a durable, watertight foundation for your tiled surfaces.
A Producer Statement (PS3) for eligible projects
As an approved PS3 author, we can provide a Producer Statement for eligible projects — giving builders, architects, councils and homeowners confidence that the waterproofing has been installed in accordance with the New Zealand Building Code and the manufacturer’s specifications.
Why choose our waterproofing:
- PS3 Producer Statement available for eligible projects
- Full compliance with the New Zealand Building Code
- Approved waterproofing systems
- Options for both residential and commercial projects
- Installation by experienced professionals
- Long-lasting protection against moisture damage
Where Waterproofing Matters
Showers & wet rooms
the highest-risk zone in the house; sealed floors, walls and junctions with proper falls.
Bathrooms & laundries
full wet-area protection wherever water meets tile.
Balconies & decks
exposed surfaces that need the right membrane for Auckland’s weather.
Compliant With the New Zealand Building Code
Waterproofing wet areas isn’t optional — it’s a Building Code requirement, and getting it wrong is one of the most expensive mistakes in a renovation. Every system we install is chosen and applied to meet the NZ Building Code and the manufacturer’s specifications, cured properly before tiling begins. For projects that need it, our PS3 Producer Statement gives your council and your builder documented assurance the job was done correctly.
The Real Cost of Poor Waterproofing
A leak rarely announces itself. By the time you see a stain, smell mustiness or spot lifting tiles, water has often been getting into the substrate for months — rotting framing, growing mould and damaging the rooms below. Redoing a failed bathroom means ripping out the tiles you just paid for. Waterproofing done properly the first time is the cheapest insurance in the whole build.
Our Waterproofing Process, Step by Step
It starts with meticulous preparation — a clean, level substrate set out with a laser before a drop of waterproofing goes down. Waterproofing is the part of the job nobody sees, and the part that matters most: get it wrong and the damage shows up years later, behind finished tiles. That’s why we treat it as its own trade, not a quick step before tiling — every wet area is sealed properly, in the right order, so the finished room stays dry and sound.
1
Assessment & advice
we check the substrate, the falls to the drain and the moisture risk, then confirm exactly what your shower, bathroom or laundry needs before any work begins.
2
Substrate prep
surfaces are cleaned, cracks and movement joints are made good, and the area is primed so the membrane bonds tight — no shortcuts on the groundwork.
3
Priming & detailing
corners, wall-to-floor junctions and every pipe penetration are sealed and reinforced first — these edges are where leaks almost always start, so they get detailed before the main coats.
4
Membrane applied
floors, walls and junctions are sealed with the right membrane for the job, applied in even coats and carried up the walls to the correct height, all with proper falls to the drain.
5
Curing
the membrane is left to cure fully before a single tile goes on, typically a day or two. Rushing this is how waterproofing fails, so we simply don’t.
6
PS3 & handover
for eligible projects we issue a Producer Statement (PS3), documenting waterproofing that meets the New Zealand Building Code — paperwork you can hand straight to your builder, council or a future buyer.
The result is a wet area that’s watertight where it counts and ready to tile with confidence. It’s slower and more thorough than a lot of what gets done around Auckland — and it’s the difference between a bathroom that simply looks good and one that stays sound long after the job’s finished.
What Auckland Homeowners Say
Rated 5.0 on Google (20+ reviews)
“Everything was fully waterproofed before tiling and the grout and epoxy colour matched up exactly to the perfectly cut tiles. Their technique is second to none.” — Kirsty V.
Waterproofing FAQs
How long does waterproofing take to dry?
It depends on the system and conditions, but most wet-area membranes need to cure fully before tiling — typically a day or two. We never rush this step, because curing time is what makes the seal reliable.
Is waterproofing required by law in New Zealand?
Yes — waterproofing of wet areas is a New Zealand Building Code requirement. For eligible projects we can provide a PS3 Producer Statement documenting that it was installed correctly.
Do I need a Producer Statement (PS3)?
If your project has a building consent, your council or builder may require a PS3 for the waterproofing. As an approved author, Marko can provide one for eligible projects — ask us at the quote stage.
Can you waterproof without doing the tiling?
Yes. We’re happy to provide waterproofing as a standalone service for builders and other trades, as well as part of our own tiling projects.
What are the signs my waterproofing has failed?
Musty smells, discoloured or lifting tiles, spongy floors, or water marks on ceilings below a bathroom. If you notice any of these, get it looked at early — the sooner it’s caught, the smaller the repair.
Keep reading
More practical tiling guides from Tarara Tiling
How Long Does Waterproofing Take?
How long the waterproofing stage takes — and why the cure time matters.
Read the guide →What Is a Wet Room?
What a wet room is — and what it takes to build one properly.
Read the guide →5 Signs Your Bathroom Needs Re-Waterproofing
The warning signs that waterproofing has failed — and what to do next.
Read the guide →
Get a Free Waterproofing Quote
Tell us about your project and we’ll come back with a free, no-obligation quote — and honest advice on the right system for your wet areas.