Professional basement and pool waterproofing for homes, units and businesses in Westleigh. Licensed team, written quotes and a 7-year warranty on every job.
Westleigh NSW 2120
Looking for a professional waterproofing service in Westleigh? AB Sydney Waterproofing are experts in providing reliable residential, strata and commercial waterproofing across Westleigh NSW 2120. As licensed waterproofers in Westleigh, 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.
From bushland-edge family homes, the properties we waterproof in Westleigh and across the upper North Shore and Hornsby area vary a lot. What doesn’t change is our approach: inspect carefully, find the cause, and use a membrane system that suits the surface, the exposure and how the space is used.
Because we hold Waterproofing Licence 36763C and certify our work to Australian Standards, our waterproofing is recognised by insurers, certifiers and strata committees – and it’s covered by a written 7-year warranty.
From inside the bathroom to the roof and below ground, we waterproof it all in Westleigh. These four services are the ones we’re asked for most often.
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.
Backyard pools
Pools lose water through cracked shells, failed construction joints and leaking fittings. We find which one it is, repair it properly and apply a pool-grade membrane suited to constant immersion and chlorinated water.
Bathrooms
Most bathroom leaks start at the same few weak points: cracked grout, a poorly sealed floor waste, or a membrane that stops short at the wall. We find exactly where water is escaping and fix it – with tile injection when the tiles are sound, or a new membrane when they’re not.
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 Westleigh balcony drains properly and stays sealed.
Concrete roofs, roof gardens and trafficable decks protected with membranes designed for full sun, heat and heavy rain.
We line and seal box gutters, sumps and outlets so heavy storms drain away instead of overflowing into the building.
Lift pits waterproofed to stop seepage, standing water and corrosion that can damage lift equipment and trigger costly call-outs.
A properly sealed laundry floor and upturn protects floors, walls and neighbouring rooms from washing machine and tub leaks.
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.
Planters and garden beds against walls or over slabs waterproofed and drained so roots and water stay where they belong.
Damp brickwork lets water track inside. We treat and seal masonry walls to keep moisture out for good.
Not sure where the water is coming from? We trace leaks through slabs, walls, showers and balconies before any work is quoted.
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.
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.
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.
These are the early warning signs that waterproofing has failed. Catch them early and the repair is usually smaller.
Groundwater is getting past below-ground walls or joints.
Water is passing through the wall instead of draining behind it.
More loss than evaporation usually means a failed membrane or joint.
The bond has failed because the bed underneath is wet.
Water is sitting behind tiles or inside the wall cavity.
A bathroom, balcony or roof above is leaking through the slab.
How every waterproofing job in Westleigh runs, from first call to final certificate.
We visit your Westleigh property and trace the leak to its source.
A written, itemised quote with no obligation.
Proper preparation first – cracks repaired, corners and joints reinforced – then the membrane goes on.
We test, hand over the compliance certificate and register your 7-year warranty.
Our licensed waterproofers service all of Westleigh and the wider upper North Shore and Hornsby area. Wherever you are in the suburb, we can inspect, quote and complete the job with minimal disruption.
AB Sydney Waterproofing 24 Copeland St, Liverpool NSW 2170 0449 725 455 avo.bghdoean@gmail.com
Yes – we work across Westleigh and nearby suburbs every week, for homeowners, landlords, builders and strata managers. Call 0449 725 455 to arrange a free inspection.
Yes. We waterproof block and Dincel retaining walls before backfill and coordinate with your builder so the membrane and drainage go in at the right stage.
Yes. Re-tiling is the ideal time to repair the shell and apply a new pool membrane, so the new tiles aren’t hiding an old leak.
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.
Most shower and balcony repairs take a few days including curing time; tile injection is usually done in a day. Larger roofs, basements and strata jobs are scheduled in stages – we’ll give you a timeframe with your quote.
Liquid, sheet or injection – which system suits which job.
Read MoreHow a pool membrane protects the shell, paving and the ground around your pool.
Read MoreStains, smells and loose tiles – what they mean and when to call a waterproofer.
Read MoreLicensed waterproofers – free inspection, written quote and a 7-year warranty.
