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

Bathroom & Balcony Waterproofing Warwick Farm – Licensed Local Team

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

  • Licensed waterproofers
  • 7-year warranty
  • Free inspection
  • AS 3740 & AS 4654
Unit balcony waterproofing Warwick Farm NSW 2170
Waterproofing Company Warwick Farm

Your Trusted Waterproofing Company in Warwick Farm

Looking for a professional waterproofing service in Warwick Farm? AB Sydney Waterproofing are experts in providing reliable residential, strata and commercial waterproofing across Warwick Farm NSW 2170. As licensed waterproofers in Warwick Farm, 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.

Properties across Warwick Farm and the wider south-west Sydney range from family homes to unit blocks. Each brings its own waterproofing challenges – older wet areas built before modern membranes were required, outdoor areas exposed to sun and storms, and below-ground walls that hold back wet soil.

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.

Warwick Farm Waterproofing Services

Warwick Farm Waterproofing – From Wet Areas to Rooftops

We offer the full range of waterproofing in Warwick Farm, with particular focus on bathroom, balcony, basement and laundry work – the areas where water causes the most damage when membranes fail.

Shower recess and bathroom floor waterproofed before tiling Wet areas

Shower Leak Repairs & Bathroom Waterproofing

Whether you’re renovating or chasing a leak, the membrane under the tiles is what keeps water where it belongs. We install certified wet-area membranes with bond-breakers, reinforced corners and properly sealed penetrations, then issue a compliance certificate for your records.

  • Leak repairs before you renovate or sell
  • Floor wastes, corners and junctions sealed
  • Certified membranes for renovations
Bathroom waterproofing
Balcony waterproofing membrane applied before new tiles Terraces

Balcony Leak Repairs Warwick Farm

Leaking balconies are one of the most common strata repairs we do. We re-waterproof balconies and terraces with minimal disruption, keep residents and managers informed, and provide a written warranty for the owners’ corporation records.

  • Strata and owners’ corporation repairs
  • Balustrade fixing and edge sealing
  • Re-tiling after waterproofing
Balcony waterproofing
Below-ground wall waterproofing before backfill Retaining walls

Basement & Retaining Wall Waterproofing

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.

  • Membrane before backfill on new builds
  • Damp garages and lower rooms
  • Negative-side repairs where digging isn’t possible
Dincel wall waterproofing
Laundry floor waterproofed with a membrane Wet areas

Laundry Waterproofing Warwick Farm

Many older laundries were built with no membrane at all, especially in extensions and converted spaces. We waterproof the floor and wall junctions to AS 3740 during renovations, or as a stand-alone repair.

  • Membrane to AS 3740
  • Ideal during renovations
  • Stand-alone leak repairs
Laundry waterproofing

More Waterproofing Services in Warwick Farm

  • Rooftop & Flat Roof Waterproofing

    Concrete roofs, roof gardens and trafficable decks protected with membranes designed for full sun, heat and heavy rain.

  • Box Gutter Waterproofing

    Box and eaves gutters re-membraned so storm water runs off the roof instead of spilling into walls and ceilings.

  • Lift Shaft Waterproofing

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

  • 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

    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

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

  • 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

    Membranes for concrete pools and spas, applied before tiling on new pools or as a remedial fix for a pool that's losing water.

  • Water Leak Detection

    Before any work is quoted, we pinpoint where the water is coming from – saving you from paying to fix the wrong thing.

Local, Licensed Waterproofers

What Makes Us a Trusted Waterproofing Company in Warwick Farm

Licensed & Accountable

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

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 Warwick Farm 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.

Homes, Strata & Commercial

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

Know the Warning Signs

Warning Signs of Water Damage in Warwick Farm

Spotted any of these at your Warwick Farm home, unit or business? Call us before a small leak becomes a big repair.

  • 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.

  • 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.

How We Work

Simple, Clear and Done Properly – Our Process

Clear, careful and fully certified – our process for every Warwick Farm property.

01

Free Inspection

We visit your Warwick Farm 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

Waterproofing Across Warwick Farm NSW 2170

From homes and units to commercial buildings, we cover every part of Warwick Farm NSW 2170 and the surrounding south-west Sydney. Call to book a free inspection at a time that suits you.

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 Warwick Farm FAQs

Your Warwick Farm Waterproofing Questions, Answered

Yes – we work across Warwick Farm and nearby suburbs every week, for homeowners, landlords, builders and strata managers. Call 0449 725 455 to arrange 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.

Most balcony leaks start at the door sill, the drain or the balustrade fixings, where the membrane has cracked or was never properly detailed. We find the failure point and re-waterproof the balcony properly.

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.

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

Waterproofing Tips & Guides

Learn More About Waterproofing

View all waterproofing guides

Got a Leak in Warwick Farm?

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