Waterproofing that stops leaks before they start
A to Z Tiling and Waterproofing installs fully compliant waterproofing membranes for bathrooms, laundries, and wet areas across Sydney, protecting your property from water damage that is expensive to reverse and hard to spot until it becomes serious.
Why waterproofing is not the place to cut corners
Almost every leak we get called out to could have been avoided. These are the problems Sydney homeowners live with when waterproofing is rushed, skipped, or done by someone who was never coming back.
The membrane was never finished properly
Thin coats, missed corners and nothing sealed around the floor waste. It all looks fine once the tiles are on, then it fails within a couple of wet seasons.
How we fix itPrimed substrate, full coats to specification, and every corner, hob and penetration detailed.
A stain appears on the ceiling downstairs
By the time you see the mark, water has been tracking through framing and plasterboard for months, and the repair is no longer just a bathroom.
How we fix itCompliant membranes with correct upturns, then water tested before a tile goes down.
The bathroom smells damp and never dries out
Musty air, black spotting in the silicone and grout that stays dark all mean moisture is sitting somewhere it should never have reached.
How we fix itCorrect falls, sealed junctions, and grout and sealants matched to the wet area.
Water pools instead of running to the drain
No fall to the waste leaves standing water, slippery floors and constant pressure on the weakest point of the waterproofing.
How we fix itScreed and falls set to the drain, then checked with water before tiling.
Nobody will take responsibility for the leak
The waterproofer blames the tiler, the tiler blames the builder, and you are the one chasing phone calls while the damage spreads.
How we fix itOne team waterproofs and tiles, with photos of every stage, so accountability sits with us.
Fixing it means demolishing a new bathroom
Failed waterproofing cannot be patched from the surface. Tiles come off, the room is out of action, and you pay for the same job twice.
How we fix itDone correctly the first time and backed by a written 6 year workmanship guarantee.
Waterproofing services we provide
Bathroom & Wet Area Waterproofing
Full membrane systems for showers, bathroom floors and walls, installed to AS 3740 before any tiling begins.
Laundry Waterproofing
Waterproofing for laundries and internal wet areas exposed to overflow, spillage and appliance leaks.
Shower Recess Waterproofing
Corner and hob detailing, angle fillets and membrane upturns, exactly where leaks most commonly start.
Renovations & New Builds
Waterproofing scoped and installed as part of a renovation or new build, sequenced around your builder and trades.
Leak Detection & Repairs
Diagnosis of failed membranes and full remediation, including tile removal where needed, so the area is waterproofed properly again.
Compliance Documentation
Work carried out and documented to AS 3740, supporting certificate of compliance requirements where applicable.
Why Sydney homeowners trust us with waterproofing
Compliant with AS 3740 on every job
Every wet area is installed to the current Australian Standard for waterproofing of domestic wet areas, not to whatever is quickest on the day.
Waterproofing and tiling from one team
No handover between trades. The crew that waterproofs also tiles, so sequencing, falls and detailing are never compromised.
Photographed before the tiles cover it
Membrane application is documented at every stage, so you have proof of what sits under your tiles if you ever need it.
Cured properly, not rushed to hit a deadline
We let the membrane cure fully before tiling. It is the most common corner cut in the trade, and the one that causes the most damage.
From inspection to sign off
Inspection and Quote
We assess the wet area and confirm scope, membrane system, and a fixed quote.
Surface Preparation
The substrate is cleaned, primed, and prepared to manufacturer and AS 3740 specifications.
Membrane Application
Membrane is applied to floors, walls, hobs, and penetrations, with the correct fall to the drain.
Curing, Inspection, Sign Off
The membrane cures fully before tiling proceeds, and documentation is provided.
Waterproofing across greater Sydney
We waterproof homes, apartments and commercial wet areas right across the Sydney metropolitan area, from the Inner West and Eastern Suburbs to Western Sydney, the North Shore and the Hills.
Sydney CBD & Inner West
Apartment and terrace wet areas
Western Suburbs
New builds and full bathroom rebuilds
Eastern Suburbs
Coastal homes, showers and balconies
Northern Sydney
Renovation and remedial waterproofing
Southern Sydney
Laundries, bathrooms and internal wet areas
The Hills District
Family homes and second bathrooms
Recent waterproofing projects
Membranes, wet-area preparation and tiled finishes from our own Sydney sites.
Membrane
Wet area
Bathroom
Shower
Shower
Wet area
ShowerCommon questions
What is AS 3740 and why does it matter?
AS 3740 is the Australian Standard covering waterproofing of domestic wet areas. It sets minimum requirements for membrane coverage, falls, and detailing. Waterproofing that doesn't meet this standard can void insurance claims and cause costly failures.
How do I know if my bathroom needs to be waterproofed again?
Warning signs include stains on ceilings below the bathroom, a musty smell, soft or discoloured flooring near the shower, or visible movement in grout and sealant.
How long does waterproofing take to cure before tiling?
Curing times depend on the membrane system and site conditions, typically 24 to 48 hours before tiling can begin. We factor this into your project timeline from the outset.
Do I need a waterproofing certificate for my renovation?
Depending on your council and the scope of work, a certificate of compliance for waterproofing may be required, particularly for bathroom renovations and new builds. We can advise what applies to your project.
What happens if waterproofing fails after installation?
All waterproofing work is covered by our 6 year workmanship warranty. If an issue relates to our installation within the warranty period, we assess and remediate it.
Protect your property before it costs you
Book a free waterproofing assessment with Sydney's tiling and waterproofing specialists.