Shower walls and floor waterproofed with a blue membrane
Waterproofing Licence: 36763C

Waterproofers in Coogee – 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 Coogee – licensed, certified and guaranteed for 7 years.

  • Licensed waterproofers
  • 7-year warranty
  • Free inspection
  • AS 3740 & AS 4654
Rooftop terrace waterproofing on an apartment building Coogee NSW 2034
Waterproofers Coogee

Reliable Waterproofing Solutions for Coogee Properties

Want a reliable waterproofing company in Coogee? AB Sydney Waterproofing delivers licensed waterproofing in Coogee for every part of your property, from wet areas inside to balconies, roofs and below-ground walls outside. We inspect first, explain what’s failing and fix it properly.

Properties across Coogee and the wider eastern suburbs range from beachside apartments and units to family homes and semis. 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.

Because we hold Waterproofing Licence 36763C and certify our work to Australian Standards, our waterproofing is recognised by insurers, certifiers and strata committees – and it’s covered by a written 7-year warranty.

Coogee Waterproofing Services

Complete Waterproofing Solutions for Coogee

We offer the full range of waterproofing in Coogee, with particular focus on balcony, bathroom, rooftop and brick wall work – the areas where water causes the most damage when membranes fail.

Balcony waterproofing membrane applied before new tiles Outdoor areas

Balcony, Terrace & Courtyard Waterproofing

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 Coogee balcony drains properly and stays sealed.

  • Strata and owners’ corporation repairs
  • Balustrade fixing and edge sealing
  • Re-tiling after waterproofing
Balcony waterproofing
Shower recess and bathroom floor waterproofed before tiling Showers & en-suites

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.

  • 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 Rooftops

Coogee Rooftop Waterproofing

Roof leaks rarely come from the middle of the roof – they start at upstands, outlets, penetrations and junctions with walls. We detail every one of these properly, then apply a roof membrane that can handle Sydney’s heat, UV and heavy downpours.

  • Trafficable roof terraces
  • Upstands and penetrations detailed
  • Roof gardens and planters
Rooftop waterproofing
Brick wall treated and sealed against damp Damp walls

Brick Wall & Damp Waterproofing

Masonry is porous, and without proper damp-proofing it acts like a sponge. We work out whether the moisture is rising, penetrating or coming from poor drainage, then treat it with the right system for the wall.

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

More Waterproofing Services in Coogee

  • Basement & Dincel Wall Waterproofing

    Below-ground waterproofing for new builds and remedial seepage repairs in existing basements and garages.

  • 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 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

    Concrete and screed floors waterproofed for wet areas, ground floors and commercial spaces where water must stay out of the slab.

  • 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

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

  • 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

    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

Why Coogee Property Owners Choose AB Sydney Waterproofing

Licensed Waterproofers

All work is carried out under Waterproofing Licence 36763C. Ask to see it on site – a licensed contractor protects you, your insurer and your strata.

Written 7-Year Guarantee

You get a written 7-year warranty on our workmanship, so you can renovate, rent or sell with confidence.

No Guesswork

Stains and damp patches can be metres from the real leak. We track the water back to where it enters before recommending a fix.

Australian Standards

Internal wet areas to AS 3740 and external membranes to AS 4654, with a compliance certificate for your records, sale or strata.

Any Size of Job

One leaking shower or a whole building – we scale the team and schedule to suit, with minimal disruption.

No Hidden Costs

You’ll know the scope and price in writing before we start. The price we quote is the price you pay for that scope.

Know the Warning Signs

Common Leak Signs We See in Coogee

Water damage gets more expensive the longer it runs. If you notice any of these, book a free inspection.

  • 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.

  • Overflowing gutters in storms

    Box gutters or roof outlets can’t cope and spill inside.

  • Damp, peeling paint low on walls

    Rising or penetrating damp is getting into the masonry.

How We Work

How We Waterproof Your Coogee Property

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

01

Free Inspection

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

02

Written Quote

You get the findings, the fix and the cost in writing.

03

Prepare & Apply

We clean, repair and prime the substrate, then build up the membrane to the specified thickness.

04

Test & Certify

Wet areas are flood tested where suitable, then certified and covered by our warranty.

Service Area

Waterproofing Across Coogee NSW 2034

From homes and units to commercial buildings, we cover every part of Coogee NSW 2034 and the surrounding eastern suburbs. 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 Coogee FAQs

Common Questions About Waterproofing in Coogee

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

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 apply a certified membrane to AS 3740 before tiling and provide a compliance certificate for your records, your builder and any future sale.

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.

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 Coogee Owners

View all waterproofing guides

Leaking Shower or Balcony in Coogee?

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