Basement floor membrane applied in a Sydney building
Waterproofing Licence: 36763C

Balcony & Basement Waterproofing Hurstville – Licensed Local Team

Professional balcony and basement waterproofing for homes, units and businesses in Hurstville. Licensed team, written quotes and a 7-year warranty on every job.

  • Licensed waterproofers
  • 7-year warranty
  • Free inspection
  • AS 3740 & AS 4654
Apartment balcony waterproofing Hurstville NSW 2220
Waterproofers Hurstville

Your Trusted Waterproofing Company in Hurstville

Need dependable waterproofing in Hurstville? Our licensed team provides expert Hurstville 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.

Homes and buildings in Hurstville – high-rise apartments and shops to brick family homes – 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.

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.

Our Services in Hurstville

Waterproofing Services in Hurstville

From inside the bathroom to the roof and below ground, we waterproof it all in Hurstville. These four services are the ones we’re asked for most often.

Balcony waterproofing membrane applied before new tiles Terraces

Balcony & Terrace Waterproofing Hurstville

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 Hurstville balcony drains properly and stays sealed.

  • Balconies, terraces and courtyards
  • External membranes to AS 4654
  • Door sill and drain detailing
Balcony waterproofing
Below-ground wall waterproofing before backfill Below ground

Hurstville Basement Waterproofing

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.

  • Dincel, block and retaining walls
  • Basement slab and joint repairs
  • Lift pit waterproofing
Dincel wall waterproofing
Shower recess and bathroom floor waterproofed before tiling Wet areas

Hurstville Bathroom Waterproofing

Showers leak when the membrane is cracked, missing at the hob or wall junction, or wasn’t sealed around the floor waste. In Hurstville we test, trace and repair the actual failure point – then re-waterproof to AS 3740 so the repair lasts as long as the tiles.

  • Shower recesses, en-suites and full bathrooms
  • Membrane to AS 3740 with compliance certificate
  • Tile injection when tiles are sound
Bathroom waterproofing
Flat concrete roof waterproofed with a liquid membrane Flat roofs

Rooftop & Flat Roof Waterproofing Hurstville

From apartment rooftops to commercial roof decks and roof gardens, we install trafficable and non-trafficable membranes to suit how the roof is used, with box gutters and outlets sealed as part of the job.

  • Trafficable roof terraces
  • Upstands and penetrations detailed
  • Roof gardens and planters
Rooftop waterproofing

More Waterproofing Services in Hurstville

  • Box Gutter Waterproofing

    Long box gutters overflow inside when their lining fails. We seal gutters and outlets to keep water on the outside.

  • Lift Shaft Waterproofing

    Lift pits waterproofed to stop seepage, standing water and corrosion that can damage lift equipment and trigger costly call-outs.

  • Laundry Waterproofing

    A properly sealed laundry floor and upturn protects floors, walls and neighbouring rooms from washing machine and tub leaks.

  • Floor Waterproofing

    Floor waterproofing for homes, units and businesses, applied with the right primer and system for concrete, screed or timber subfloors.

  • Tile Injection Waterproofing

    Shower leaking but tiles still solid? Resin injected through the grout lines can seal it in a day, without a full renovation.

  • Planter Box Waterproofing

    Planter boxes and podium gardens lined with root-resistant membranes and proper drainage so they don't leak into walls or car parks.

  • Brick Wall Waterproofing

    Brick walls, parapets and chimneys sealed against rising and penetrating damp to stop salt damage, flaking render and mould inside.

  • Swimming Pool Waterproofing

    Concrete pools and spas waterproofed so the shell holds water and the paving and ground around it stay dry.

  • Water Leak Detection

    Not sure where the water is coming from? We trace leaks through slabs, walls, showers and balconies before any work is quoted.

Local, Licensed Waterproofers

Why Hurstville Property Owners Choose AB Sydney Waterproofing

Licensed & Accountable

We hold Waterproofing Licence 36763C and put our name to every membrane we install – no unlicensed subcontractors.

Diagnosis Before Quoting

We test and trace the leak first, so the quote covers what’s actually failing – not guesswork.

Built to Code

We follow AS 3740 inside and AS 4654 outside, and hand over the paperwork your certifier, insurer or buyer will ask for.

Homes, Strata & Commercial

From a single bathroom to a full apartment block or commercial roof, we plan work around residents, tenants and business hours.

Upfront Pricing

Our free quote spells out the problem, the solution and the cost, so you can decide with all the facts.

7-Year Warranty

Every job in Hurstville is backed by a written 7-year warranty. If something isn’t right, we come back and fix it.

Know the Warning Signs

Signs Your Hurstville Property Needs Waterproofing

These are the early warning signs that waterproofing has failed. Catch them early and the repair is usually smaller.

  • Stains on the ceiling below

    A bathroom, balcony or roof above is leaking through the slab.

  • White salt on brick or concrete

    Efflorescence means water is moving through the masonry.

  • Water in the basement or garage

    Groundwater is getting past below-ground walls or joints.

  • Wet patches below retaining walls

    Water is passing through the wall instead of draining behind it.

  • Loose, drummy or cracked tiles

    The bond has failed because the bed underneath is wet.

  • Mould, musty smells or black grout

    Water is sitting behind tiles or inside the wall cavity.

How We Work

Our Four-Step Waterproofing Process

How every waterproofing job in Hurstville runs, from first call to final certificate.

01

Free Inspection

We visit your Hurstville property and trace the leak to its source.

02

Written Quote

A clear quote with the cause, the system and the price.

03

Prepare & Apply

Surfaces prepared and primed, then the right membrane applied at full thickness.

04

Test & Certify

Flood tested where suitable, with a compliance certificate and 7-year warranty.

Service Area

Waterproofers Covering All of Hurstville NSW 2220

Our licensed waterproofers service all of Hurstville and the wider St George 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
Shower recess walls and floor waterproofed with a blue membrane by AB Sydney Waterproofing
Still have questions?Call 0449 725 455
Waterproofing Hurstville FAQs

Hurstville Waterproofing FAQs

Yes. We waterproof high-rise apartments and shops to brick family homes throughout Hurstville NSW 2220 and the surrounding St George area. Call 0449 725 455 to book 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. Wet-area waterproofing comes with a compliance certificate to AS 3740, and every job is covered by our written 7-year warranty.

Prices vary with the area, access, the condition of the surface and the system required. We inspect for free and give you a written quote, so there’s no guessing before you commit.

Waterproofing Tips & Guides

Waterproofing Guides for Hurstville Owners

View all waterproofing guides

Leaking Shower or Balcony in Hurstville?

Licensed waterproofers – free inspection, written quote and a 7-year warranty.