Large Hills District homes, apartments near the Metro and plenty of backyard pools – we waterproof them all across Castle Hill, licensed and backed by a 7-year warranty.
Castle Hill NSW 2154
Looking for reliable waterproofers in Castle Hill? AB Sydney Waterproofing provides professional waterproofing in Castle Hill for family homes, apartments and townhouses. Our licensed team repairs leaking pools, bathrooms, balconies and retaining walls with proven membrane systems – free inspection and a written 7-year warranty.
Castle Hill is the heart of the Hills District. Large brick and rendered homes on sloping blocks fill the residential streets, many with in-ground pools, double-storey layouts and terraced yards. Around Castle Towers and the Castle Hill and Hills Showground Metro stations, apartment buildings and townhouses have added a new layer of high-density living.
Hilly land, mature pools and big two-storey homes create a steady flow of waterproofing work: pools losing water, upstairs en-suites leaking into ceilings, balconies over living rooms failing and retaining walls letting water into garages. Newer apartments add balconies and basements to the mix.
Every waterproofing service is available in Castle Hill. Pools, bathrooms, balconies and retaining walls get the most attention – where Castle Hill homes and apartments most often leak.
Backyard pools
Castle Hill has a huge number of backyard pools, and many built in the 1980s and 90s are now losing water through cracks and failed membranes. We find the leak, repair the shell and re-waterproof it – and waterproof new pools before tiling.
En-suites
Upstairs en-suites in two-storey Castle Hill homes leak straight into the ceiling below when the membrane fails. We repair leaking showers, often with tile injection, and waterproof renovated bathrooms to AS 3740.
Homes & apartments
Balconies above living rooms on family homes and stacked balconies on new apartments near the Metro both need membranes that last. We re-waterproof balconies with careful detailing at door sills, drains and balustrades.
Sloping blocks
Garages and rooms cut into Castle Hill’s slopes, and basement car parks under new apartments, need walls that keep water out. We waterproof retaining, block and Dincel walls on new builds and repair seepage in existing homes and basements.
Flat concrete roofs and roof decks re-membraned so they shed water instead of ponding and leaking into the floor below.
Long box gutters overflow inside when their lining fails. We seal gutters and outlets to keep water on the outside.
Lift pits waterproofed to stop seepage, standing water and corrosion that can damage lift equipment and trigger costly call-outs.
Laundry floors, tub areas and wall junctions sealed so constant moisture doesn't damage floors, skirting or the room next door.
Floor waterproofing for homes, units and businesses, applied with the right primer and system for concrete, screed or timber subfloors.
Shower leaking but tiles still solid? Resin injected through the grout lines can seal it in a day, without a full renovation.
Planter boxes and podium gardens lined with root-resistant membranes and proper drainage so they don't leak into walls or car parks.
Damp brickwork lets water track inside. We treat and seal masonry walls to keep moisture out for good.
Before any work is quoted, we pinpoint where the water is coming from – saving you from paying to fix the wrong thing.
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.
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.
One leaking shower or a whole building – we scale the team and schedule to suit, with minimal disruption.
These are the problems we see most often across Castle Hill. If any sound familiar, book a free inspection.
More loss than evaporation usually means a failed membrane or joint.
A bathroom, balcony or roof above is leaking through the slab.
Water is passing through the wall instead of draining behind it.
The bond has failed because the bed underneath is wet.
Groundwater is getting past below-ground walls or joints.
Water is sitting behind tiles or inside the wall cavity.
Four clear steps on every Castle Hill job – from a pool repair to a whole apartment building.
We visit your Castle Hill 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 cover all of Castle Hill – the family homes on the hillside streets, the apartments and townhouses around Castle Towers and the Metro stations, and the areas towards Showground Road and Old Northern Road. Our team works across the Hills District every week.
AB Sydney Waterproofing 24 Copeland St, Liverpool NSW 2170 0449 725 455 avo.bghdoean@gmail.com
Yes. We waterproof homes, townhouses and apartments throughout Castle Hill and the Hills District. Call 0449 725 455 to book a free inspection.
A simple bucket test helps, but if you’re topping up much more than usual or notice damp ground, cracks or loose tiles, it’s worth an inspection.
Yes. We waterproof balconies, podiums, basements and lift pits in newer apartment buildings, working with strata and building managers.
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.
All our waterproofing is backed by a written 7-year warranty, and wet-area work comes with a compliance certificate for your records.
It depends on the size of the area, how much damage the leak has caused and the membrane system needed. Every job starts with a free inspection and a written, itemised quote, so you know the exact price before work begins.
Falling water levels, cracks and damp paving – the signs your pool is leaking.
Read MoreWhat a failed bathroom membrane can cost you, and why getting it right matters.
Read MoreWhy balconies fail at the door sill, drain and balustrade, and how the right membrane stops it.
Read MoreLicensed waterproofers working across the Hills District – free inspection and written quote.
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