Leaking balcony, bathroom or laundry? We find the real cause and fix it with the right membrane – licensed, with a free inspection and a 7-year warranty.
Wentworthville NSW 2145
Looking for a professional waterproofing service in Wentworthville? AB Sydney Waterproofing are experts in providing reliable residential, strata and commercial waterproofing across Wentworthville NSW 2145. As licensed waterproofers in Wentworthville, we find the real cause of every leak and fix it with long-lasting membranes – backed by a free inspection and a written 7-year warranty.
Like much of the western Sydney, Wentworthville is a mix of family homes to apartments near the station. Whatever the building, water finds the weakest point – a cracked grout line, a failed door sill, a blocked outlet or an unsealed joint – and the damage often shows up a long way from where the water gets in.
Every job starts with finding out exactly where the water is coming from. We then recommend the simplest fix that will last – whether that’s tile injection, a remedial membrane or a full strip-out – and explain the options clearly before you decide.
From inside the bathroom to the roof and below ground, we waterproof it all in Wentworthville. These four services are the ones we’re asked for most often.
Balconies
Water should run off a balcony, not sit on it. We check falls, outlets and thresholds first, fix any ponding, then apply a flexible external membrane with reinforced corners and properly sealed upstands – so your Wentworthville balcony drains properly and stays sealed.
Showers & en-suites
A failed shower membrane lets water into the floor, wall frames and the room or unit below – often for months before you see a stain. We repair leaking showers and waterproof new and renovated bathrooms in Wentworthville to AS 3740, sealing floor wastes, corners and wall junctions properly.
Wet areas
Most laundry leaks come from the junction between floor and wall, where water from machines and tubs sits and soaks in. We waterproof the floor and turn the membrane up the walls so water stays contained.
Retaining walls
Below-ground waterproofing has to resist constant water pressure, so the system matters. We use membranes suited to the wall type and conditions – applied before backfill on new builds, or from the inside where excavation isn’t practical.
Flat concrete roofs and roof decks re-membraned so they shed water instead of ponding and leaking into the floor below.
Box and eaves gutters re-membraned so storm water runs off the roof instead of spilling into walls and ceilings.
Positive and negative-side membranes for lift pits that sit below the water table, on new builds or as a remedial fix.
Concrete and screed floors waterproofed for wet areas, ground floors and commercial spaces where water must stay out of the slab.
Tile injection stops many shower leaks without ripping out the bathroom, so you avoid weeks of renovation.
Garden beds built against walls and over slabs are a common hidden leak. We waterproof and drain them properly.
Damp brickwork lets water track inside. We treat and seal masonry walls to keep moisture out for good.
Pool and spa waterproofing that stops water escaping into the surrounding ground, paving and structure.
Our inspection finds the real source of a leak first, so you only pay to fix what's actually failing.
All work is carried out under Waterproofing Licence 36763C. Ask to see it on site – a licensed contractor protects you, your insurer and your strata.
Stains and damp patches can be metres from the real leak. We track the water back to where it enters before recommending a fix.
Internal wet areas to AS 3740 and external membranes to AS 4654, with a compliance certificate for your records, sale or strata.
One leaking shower or a whole building – we scale the team and schedule to suit, with minimal disruption.
You’ll know the scope and price in writing before we start. The price we quote is the price you pay for that scope.
You get a written 7-year warranty on our workmanship, so you can renovate, rent or sell with confidence.
Spotted any of these at your Wentworthville home, unit or business? Call us before a small leak becomes a big repair.
A bathroom, balcony or roof above is leaking through the slab.
Efflorescence means water is moving through the masonry.
The bond has failed because the bed underneath is wet.
Water is sitting behind tiles or inside the wall cavity.
Water is wicking out of a wet area into the timber next to it.
Groundwater is getting past below-ground walls or joints.
Clear, careful and fully certified – our process for every Wentworthville property.
We visit your Wentworthville property and trace the leak to its source.
A clear quote with the cause, the system and the price.
Surfaces prepared and primed, then the right membrane applied at full thickness.
Flood tested where suitable, with a compliance certificate and 7-year warranty.
We provide waterproofing throughout Wentworthville and the surrounding western Sydney. Our team travels from our Liverpool base and works across Sydney every week, so inspections are easy to arrange.
AB Sydney Waterproofing 24 Copeland St, Liverpool NSW 2170 0449 725 455 avo.bghdoean@gmail.com
Yes – we work across Wentworthville and nearby suburbs every week, for homeowners, landlords, builders and strata managers. Call 0449 725 455 to arrange a free inspection.
Most balcony leaks start at the door sill, the drain or the balustrade fixings, where the membrane has cracked or was never properly detailed. We find the failure point and re-waterproof the balcony properly.
Yes. We apply a certified membrane to AS 3740 before tiling and provide a compliance certificate for your records, your builder and any future sale.
Yes. All work is carried out under Waterproofing Licence 36763C, and we’re happy to show it on site. A licensed waterproofer matters for insurance claims, strata approvals and selling your property.
Yes. Wet-area waterproofing comes with a compliance certificate to AS 3740, and every job is covered by our written 7-year warranty.
Why balconies fail at the door sill, drain and balustrade, and how the right membrane stops it.
Read MoreWhat a failed bathroom membrane can cost you, and why getting it right matters.
Read MoreThe quiet signs a laundry is leaking, and how to fix it properly.
Read MoreLicensed waterproofers – free inspection, written quote and a 7-year warranty.
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