Bathroom floor waterproofed with a blue membrane before tiling
Waterproofing Licence: 36763C

Waterproofers in Drummoyne – Stop Balcony & Bathroom Leaks for Good

From a single leaking balcony to a full bathroom re-waterproof, we do it properly the first time across Drummoyne – licensed, certified and guaranteed for 7 years.

  • Licensed waterproofers
  • 7-year warranty
  • Free inspection
  • AS 3740 & AS 4654
Bathroom waterproofing in progress Drummoyne NSW 2047
Drummoyne Waterproofing Specialists

Your Trusted Waterproofing Company in Drummoyne

Searching for experienced waterproofers in Drummoyne? We specialise in waterproofing services in Drummoyne for homeowners, landlords, builders and strata managers. From balcony leaks to bathroom and pool repairs, our licensed team gets it right the first time – free inspection, written quote, 7-year warranty.

From waterfront apartments and units to Federation and inter-war homes, the properties we waterproof in Drummoyne and across the inner west 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.

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.

Our Services in Drummoyne

What We Waterproof in Drummoyne

Every waterproofing service is available in Drummoyne. Balcony, Bathroom, Pool and Brick Wall waterproofing get our closest attention, because they’re the jobs Drummoyne property owners call us for most.

Balcony waterproofing membrane applied before new tiles Outdoor areas

Balcony, Terrace & Courtyard Waterproofing

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.

  • Balconies, terraces and courtyards
  • External membranes to AS 4654
  • Door sill and drain detailing
Balcony waterproofing
Shower recess and bathroom floor waterproofed before tiling Bathrooms

Shower Leak Repairs & Bathroom Waterproofing

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 Drummoyne to AS 3740, sealing floor wastes, corners and wall junctions properly.

  • Shower recesses, en-suites and full bathrooms
  • Membrane to AS 3740 with compliance certificate
  • Tile injection when tiles are sound
Bathroom waterproofing
Concrete pool shell prepared for waterproofing Pools

Pool & Spa Waterproofing

If you’re topping up the pool far more than usual, water is probably escaping through cracks, joints or a failed membrane. We find the leak, repair the shell and re-waterproof pools in Drummoyne – and waterproof new concrete pools before tiling.

  • Shell crack and joint repairs
  • Re-waterproofing before re-tiling
  • Fittings and penetrations sealed
Pool waterproofing
Brick wall treated and sealed against damp Masonry

Drummoyne Brick Wall Waterproofing

Damp brickwork is usually a sign of failed or missing damp-proofing, porous bricks or poor drainage at the base of the wall. We identify the cause first, then apply treatments and sealers suited to the age and type of brick.

  • Rising and penetrating damp
  • Parapets, chimneys and external walls
  • Salt and efflorescence problems
Brick wall waterproofing

More Waterproofing Services in Drummoyne

  • Rooftop & Flat Roof Waterproofing

    Flat concrete roofs and roof decks re-membraned so they shed water instead of ponding and leaking into the floor below.

  • Basement & Dincel Wall Waterproofing

    Groundwater kept out of basements, garages and below-ground rooms with membranes suited to constant moisture pressure.

  • Box Gutter Waterproofing

    We line and seal box gutters, sumps and outlets so heavy storms drain away instead of overflowing into the building.

  • Lift Shaft Waterproofing

    Lift pits and shafts sealed against groundwater to protect lift equipment and stop corrosion in apartment and commercial buildings.

  • Laundry Waterproofing

    Laundries leak quietly behind machines and tubs. We waterproof the floor and walls properly so the problem doesn't come back.

  • Floor Waterproofing

    Remedial floor membranes for wet areas, ground-floor slabs and commercial floors, matched to the substrate so water can't move through.

  • Tile Injection Waterproofing

    Epoxy resin injected under existing tiles seals a leaking shower without demolition – a faster, lower-cost fix when the tiles are still sound.

  • Planter Box Waterproofing

    Garden beds built against walls and over slabs are a common hidden leak. We waterproof and drain them properly.

  • Water Leak Detection

    Our inspection finds the real source of a leak first, so you only pay to fix what's actually failing.

Local, Licensed Waterproofers

Why Homeowners & Strata Managers in Drummoyne Call Us

Licensed & Accountable

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

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

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.

Know the Warning Signs

Common Leak Signs We See in Drummoyne

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.

  • 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.

  • Pool water level keeps dropping

    More loss than evaporation usually means a failed membrane or joint.

  • Damp, peeling paint low on walls

    Rising or penetrating damp is getting into the masonry.

How We Work

Simple, Clear and Done Properly – Our Process

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

01

Free Inspection

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

02

Written Quote

A written, itemised quote with no obligation.

03

Prepare & Apply

Proper preparation first – cracks repaired, corners and joints reinforced – then the membrane goes on.

04

Test & Certify

We test, hand over the compliance certificate and register your 7-year warranty.

Service Area

Servicing Drummoyne NSW 2047 & Surrounds

We provide waterproofing throughout Drummoyne and the surrounding inner west. Our team travels from our Liverpool base and works across Sydney every week, so inspections are easy to arrange.

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 Drummoyne FAQs

Your Drummoyne Waterproofing Questions, Answered

Yes. We waterproof waterfront apartments and units to Federation and inter-war homes throughout Drummoyne NSW 2047 and the surrounding inner west. 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.

Often, yes. If the tiles are still well bonded, tile injection seals the leak from underneath without demolition. If the membrane has failed completely, we’ll explain why a strip-out is the better long-term fix.

Yes. Wet-area waterproofing comes with a compliance certificate to AS 3740, and every job is covered by our written 7-year warranty.

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.

Waterproofing Tips & Guides

Helpful Waterproofing Guides

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Water Getting In Somewhere in Drummoyne?

Talk to a licensed waterproofer today – free inspection and written quote.