Certified membranes, honest advice and a written 7-year warranty. We waterproof bathrooms, pools and balconys across Northmead and nearby suburbs.
Northmead NSW 2152
Looking for a professional waterproofing service in Northmead? AB Sydney Waterproofing are experts in providing reliable residential, strata and commercial waterproofing across Northmead NSW 2152. As licensed waterproofers in Northmead, 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.
Homes and buildings in Northmead – family homes and townhouses to units – all rely on waterproofing that’s hidden under tiles, screeds and coatings. When it fails, the first sign is usually a stain, a musty smell or a loose tile, and by then water has often been escaping for months.
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.
Every waterproofing service is available in Northmead. Bathroom, Pool, Balcony and Basement waterproofing get our closest attention, because they’re the jobs Northmead property owners call us for most.
Wet areas
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 Northmead to AS 3740, sealing floor wastes, corners and wall junctions properly.
Backyard pools
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.
Balconies
A balcony over a living room or garage needs a membrane that handles full sun, heavy rain and movement. We prepare the slab properly, correct falls where needed, and detail every edge, outlet and threshold so water drains away instead of finding its way inside.
Basements
Damp patches, salt and moss on a retaining wall, or water across a garage floor after rain, mean water is getting through instead of draining away. We find the entry points and seal walls, slabs, joints and lift pits properly.
Remedial roof membranes for homes, apartments and commercial buildings, built to handle UV, heat and heavy downpours.
Long box gutters overflow inside when their lining fails. We seal gutters and outlets to keep water on the outside.
Positive and negative-side membranes for lift pits that sit below the water table, on new builds or as a remedial fix.
Laundry floors, tub areas and wall junctions sealed so constant moisture doesn't damage floors, skirting or the room next door.
Remedial floor membranes for wet areas, ground-floor slabs and commercial floors, matched to the substrate so water can't move through.
Epoxy resin injected under existing tiles seals a leaking shower without demolition – a faster, lower-cost fix when the tiles are still sound.
Garden beds built against walls and over slabs are a common hidden leak. We waterproof and drain them properly.
External brick walls, parapets and chimneys treated against damp and salt so moisture stops reaching the inside of the building.
Not sure where the water is coming from? We trace leaks through slabs, walls, showers and balconies before any work is quoted.
We hold Waterproofing Licence 36763C and put our name to every membrane we install – no unlicensed subcontractors.
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.
Our free quote spells out the problem, the solution and the cost, so you can decide with all the facts.
Every job in Northmead is backed by a written 7-year warranty. If something isn’t right, we come back and fix it.
These are the early warning signs that waterproofing has failed. Catch them early and the repair is usually smaller.
The bond has failed because the bed underneath is wet.
Water is sitting behind tiles or inside the wall cavity.
More loss than evaporation usually means a failed membrane or joint.
A bathroom, balcony or roof above is leaking through the slab.
Efflorescence means water is moving through the masonry.
Groundwater is getting past below-ground walls or joints.
How every waterproofing job in Northmead runs, from first call to final certificate.
We visit your Northmead 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.
Our licensed waterproofers service all of Northmead and the wider Parramatta and Hills 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 waterproof family homes and townhouses to units throughout Northmead NSW 2152 and the surrounding Parramatta and Hills area. Call 0449 725 455 to book 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. 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.
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.
Yes. Every job comes with a written 7-year warranty on workmanship, plus a compliance certificate for wet areas – useful for insurance, strata and future sales.
What a failed bathroom membrane can cost you, and why getting it right matters.
Read MoreHow a pool membrane protects the shell, paving and the ground around your pool.
Read MoreWhy balconies fail at the door sill, drain and balustrade, and how the right membrane stops it.
Read MoreLicensed waterproofers – free inspection, written quote and a 7-year warranty.
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