Retaining wall waterproofing on a new home construction site
Waterproofing Licence: 36763C

Austral Waterproofing – New Builds, Retaining Walls & Pools

Waterproofing for Austral’s new housing estates and acreage homes – retaining walls, wet areas, pools and alfresco areas done right the first time, with a 7-year warranty.

  • Licensed waterproofers
  • 7-year warranty
  • Free inspection
  • AS 3740 & AS 4654
Below-ground wall waterproofing on a new build Austral NSW 2179
Waterproofers Austral

Waterproofing Specialists for New Homes in Austral, NSW 2179

Building or renovating and need waterproofing in Austral? Our licensed team provides expert waterproofing services in Austral for builders, owner-builders and homeowners. From retaining walls and wet areas in new homes to pools and alfresco areas, we install proven membrane systems with a free inspection and a written 7-year warranty.

Austral is changing fast. What were once semi-rural acreage blocks are being transformed into new housing estates as south-west Sydney grows towards Western Sydney International Airport. Alongside established acreage homes, new streets of double-storey houses are going up on freshly cut and filled blocks.

New builds put waterproofing to the test early. Cut-and-fill blocks need retaining walls that drain and stay dry, and every new bathroom, laundry and balcony needs a certified membrane before handover. We work to builders’ schedules and provide the compliance certificates you need.

Waterproofing Services Austral

Waterproofing for Austral’s New & Established Homes

We offer every waterproofing service in Austral, with extra focus on retaining walls, new-home wet areas, pools and outdoor living areas – the work Austral’s growing estates need most.

Retaining wall waterproofing membrane on a new home site New builds

Retaining Wall & Dincel Waterproofing Austral

Sloping and cut blocks in Austral’s new estates rely on block and Dincel retaining walls. Without a proper membrane and drainage behind them, water pushes through into garages, rooms and yards. We waterproof retaining walls before backfill so they stay dry for the life of the home.

  • Block and Dincel retaining walls
  • Membrane and protection before backfill
  • Work scheduled with your builder
Dincel wall waterproofing
New bathroom waterproofed before tiling Wet areas

New Home Bathroom & Laundry Waterproofing

Every bathroom, en-suite and laundry in a new Austral home needs a certified membrane to AS 3740 before tiling. We install wet-area membranes quickly and correctly, and supply compliance certificates for handover.

  • Bathrooms, en-suites and laundries
  • AS 3740 compliance certificates
  • Fast turnaround for builders
Bathroom waterproofing
Concrete swimming pool waterproofing Acreage & estates

Swimming Pool Waterproofing Austral

Larger blocks in Austral make room for in-ground pools. We waterproof new concrete pools before tiling and repair existing pools that are losing water, protecting the shell and the ground around it.

  • New concrete pool membranes
  • Leaking pool repairs
  • Spa and water feature waterproofing
Pool waterproofing
Outdoor alfresco and balcony waterproofing Outdoor living

Alfresco, Balcony & Courtyard Waterproofing

Upstairs balconies and tiled alfresco areas are standard on new Austral homes. A failed membrane over a living area or garage causes leaks within a few years. We waterproof them properly so outdoor living doesn’t cost you a ceiling.

  • Balconies over living areas
  • Tiled alfresco and courtyard areas
  • External membranes to AS 4654
Balcony waterproofing

More Waterproofing Services in Austral

  • 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

    Positive and negative-side membranes for lift pits that sit below the water table, on new builds or as a remedial fix.

  • Laundry Waterproofing

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

  • 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

    Tile injection stops many shower leaks without ripping out the bathroom, so you avoid weeks of renovation.

  • Planter Box Waterproofing

    Planters and garden beds against walls or over slabs waterproofed and drained so roots and water stay where they belong.

  • Brick Wall Waterproofing

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

  • 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 Choose Our Waterproofers in Austral?

Licensed & Accountable

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

7-Year Warranty

Every job in Austral 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.

Upfront Pricing

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

Know the Warning Signs

Signs a New or Existing Austral Home Needs Waterproofing

Even new homes can show waterproofing problems early. If you notice any of these at your Austral property, get it checked before the builder’s warranty period passes.

  • Wet patches below retaining walls

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

  • Pool water level keeps dropping

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

  • Stains on the ceiling below

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

  • Loose, drummy or cracked tiles

    The bond has failed because the bed underneath is wet.

  • Swollen skirting or door frames

    Water is wicking out of a wet area into the timber next to it.

  • Damp, peeling paint low on walls

    Rising or penetrating damp is getting into the masonry.

How We Work

How We Waterproof Your Austral Property

Four clear steps on every Austral job, whether it’s a new build or an established home.

01

Free Inspection

We visit your Austral 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

Waterproofers Working Across Austral NSW 2179

We cover all of Austral – the new housing estates, the established acreage properties and the growing streets towards Leppington and the airport precinct. Our Liverpool base is just a short drive away, so we’re in the area regularly.

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 Austral FAQs

Austral Waterproofing Questions

Yes. We work on new builds and established homes throughout Austral. Our base in Liverpool is close by, so inspections are easy to arrange – call 0449 725 455.

Yes. We waterproof block and Dincel retaining walls before backfill, and coordinate with your builder so the membrane and drainage are in place at the right stage.

Yes. We waterproof wet areas, balconies, retaining walls and pools for builders, owner-builders and homeowners, and supply compliance certificates for every wet area.

Yes. All work is carried out under Waterproofing Licence 36763C, and we’re happy to show it on site. A licensed waterproofer matters for insurance claims, strata approvals and selling your property.

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.

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 Austral Homeowners

View all waterproofing guides

Need a Waterproofer in Austral?

Licensed waterproofers just down the road in Liverpool – free inspection and written quote.