Certified membranes, honest advice and a written 7-year warranty. We waterproof bathrooms, brick walls and pools across Killara and nearby suburbs.
Killara NSW 2071
Looking for a professional waterproofing service in Killara? AB Sydney Waterproofing are experts in providing reliable residential, strata and commercial waterproofing across Killara NSW 2071. As licensed waterproofers in Killara, 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.
Properties across Killara and the wider upper North Shore range from large heritage homes on leafy blocks to apartment blocks. Each brings its own waterproofing challenges – older wet areas built before modern membranes were required, outdoor areas exposed to sun and storms, and below-ground walls that hold back wet soil.
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 Killara. These four services are the ones we’re asked for most often.
Bathrooms
Showers leak when the membrane is cracked, missing at the hob or wall junction, or wasn’t sealed around the floor waste. In Killara we test, trace and repair the actual failure point – then re-waterproof to AS 3740 so the repair lasts as long as the tiles.
Brickwork
Damp brickwork is usually a sign of failed or missing damp-proofing, porous bricks or poor drainage at the base of the wall. We identify the cause first, then apply treatments and sealers suited to the age and type of brick.
Pools & spas
A pool membrane protects more than the water level – it stops water soaking into the surrounding ground, paving and structure. We waterproof concrete pools and spas with flexible systems suited to constant immersion and pool chemicals.
Below ground
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.
Balconies, terraces and courtyards re-membraned at door sills, drains and balustrades so water stops reaching rooms and ceilings below.
Flat concrete roofs and roof decks re-membraned so they shed water instead of ponding and leaking into the floor below.
We line and seal box gutters, sumps and outlets so heavy storms drain away instead of overflowing into the building.
Positive and negative-side membranes for lift pits that sit below the water table, on new builds or as a remedial fix.
Laundries leak quietly behind machines and tubs. We waterproof the floor and walls properly so the problem doesn't come back.
Floor waterproofing for homes, units and businesses, applied with the right primer and system for concrete, screed or timber subfloors.
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.
Before any work is quoted, we pinpoint where the water is coming from – saving you from paying to fix the wrong thing.
We hold Waterproofing Licence 36763C and put our name to every membrane we install – no unlicensed subcontractors.
Our free quote spells out the problem, the solution and the cost, so you can decide with all the facts.
Every job in Killara is backed by a written 7-year warranty. If something isn’t right, we come back and fix it.
We test and trace the leak first, so the quote covers what’s actually failing – not guesswork.
We follow AS 3740 inside and AS 4654 outside, and hand over the paperwork your certifier, insurer or buyer will ask for.
From a single bathroom to a full apartment block or commercial roof, we plan work around residents, tenants and business hours.
Spotted any of these at your Killara home, unit or business? Call us before a small leak becomes a big repair.
The bond has failed because the bed underneath is wet.
Water is sitting behind tiles or inside the wall cavity.
Rising or penetrating damp is getting into the masonry.
Efflorescence means water is moving through the masonry.
More loss than evaporation usually means a failed membrane or joint.
Groundwater is getting past below-ground walls or joints.
How every waterproofing job in Killara runs, from first call to final certificate.
We visit your Killara property and trace the leak to its source.
You get the findings, the fix and the cost in writing.
We clean, repair and prime the substrate, then build up the membrane to the specified thickness.
Wet areas are flood tested where suitable, then certified and covered by our warranty.
We provide waterproofing throughout Killara and the surrounding upper North Shore. 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 Killara and nearby suburbs every week, for homeowners, landlords, builders and strata managers. Call 0449 725 455 to arrange a free inspection.
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. We find where the moisture is coming from and treat and seal the brickwork with a system suited to the wall’s age and type.
Yes – we hold Waterproofing Licence 36763C. Using a licensed contractor protects you if you need to make an insurance claim, get strata approval or sell the property.
Yes. Wet-area waterproofing comes with a compliance certificate to AS 3740, and every job is covered by our written 7-year warranty.
How a bathroom should be waterproofed, step by step, so it stays leak-free for years.
Read MoreWhat happens when waterproofing fails – and how to avoid the cost.
Read MoreFalling water levels, cracks and damp paving – the signs your pool is leaking.
Read MoreTalk to a licensed waterproofer today – free inspection and written quote.
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