Based right here in Liverpool, we waterproof apartments, homes and commercial buildings across the city – licensed, with a free inspection and a 7-year warranty.
Liverpool NSW 2170
Need dependable waterproofing in Liverpool? Our licensed team provides expert Liverpool waterproofing for houses, apartments, townhouses and commercial buildings. We repair leaking balconys, basements, bathrooms and more using proven membrane systems, with every job backed by a written 7-year warranty.
Liverpool is home for us – our base is at 24 Copeland St, Liverpool NSW 2170. That means we can inspect quickly, get back to you with a written quote fast, and keep a close eye on every job across the city centre, the surrounding apartments and the family homes and townhouses beyond.
We waterproof internal wet areas to AS 3740 and external areas to AS 4654, prepare every surface properly before the membrane goes on, and finish with a compliance certificate where required. That’s how we can back our work with a written 7-year warranty.
Every waterproofing service is available in Liverpool. Balcony, Basement, Bathroom and Rooftop waterproofing get our closest attention, because they’re the jobs Liverpool property owners call us for most.
Terraces
Balconies fail at the door sill, the drain and the balustrade fixings. Once water gets past the membrane it stains the ceiling below, lifts tiles and leaves white efflorescence on the soffit. We strip and re-waterproof balconies in Liverpool with UV-stable external membranes to AS 4654.
Basements
Water pressure behind a wall never stops, so below-ground waterproofing has to be continuous – walls, slab and the joint between them. We seal construction joints and penetrations, then apply a membrane designed for constant moisture.
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.
Flat roofs
A roof membrane only works if every upstand, outlet and penetration is sealed. We prepare the surface, reinforce joints and corners, and apply a UV-stable system matched to how the roof is used – plant deck, terrace or non-trafficable roof.
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.
Laundries leak quietly behind machines and tubs. We waterproof the floor and walls properly so the problem doesn't come back.
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.
Planters and garden beds against walls or over slabs waterproofed and drained so roots and water stay where they belong.
Brick walls, parapets and chimneys sealed against rising and penetrating damp to stop salt damage, flaking render and mould inside.
Concrete pools and spas waterproofed so the shell holds water and the paving and ground around it stay dry.
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.
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 Liverpool 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.
Water damage gets more expensive the longer it runs. If you notice any of these, book a free inspection.
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.
Water is passing through the wall instead of draining behind it.
The bond has failed because the bed underneath is wet.
Water is sitting behind tiles or inside the wall cavity.
The same clear four steps on every Liverpool job, large or small.
We visit your Liverpool 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 base is right here at 24 Copeland St, Liverpool, so we cover every part of Liverpool NSW 2170 – the city centre and high-rise apartments, the commercial and industrial areas, and the residential streets and townhouse estates around them – along with the rest of south-west Sydney.
AB Sydney Waterproofing 24 Copeland St, Liverpool NSW 2170 0449 725 455 avo.bghdoean@gmail.com
Yes – we work across Liverpool and nearby suburbs every week, for homeowners, landlords, builders and strata managers. Call 0449 725 455 to arrange a free inspection.
Yes. We inspect and quote for owners’ corporations, coordinate access with residents and provide warranties and certificates for the strata records.
Yes. Where excavating outside isn’t practical, we use negative-side systems applied from inside the basement to resist water pressure through the wall.
Yes. We work for homeowners, landlords, builders, owner-builders, strata managers and businesses, and supply the certificates and warranties each of them needs.
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.
Why balconies fail at the door sill, drain and balustrade, and how the right membrane stops it.
Read MoreWhat happens when waterproofing fails – and how to avoid the cost.
Read MoreHow a bathroom should be waterproofed, step by step, so it stays leak-free for years.
Read MoreYour local licensed waterproofers, based right here in Liverpool – free inspection and written quote.
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