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

Croydon Waterproofers – Bathroom & Brick Wall Leak Repairs Done Right

Professional bathroom and brick wall waterproofing for homes, units and businesses in Croydon. Licensed team, written quotes and a 7-year warranty on every job.

  • Licensed waterproofers
  • 7-year warranty
  • Free inspection
  • AS 3740 & AS 4654
Shower walls and floor waterproofed with a blue membrane Croydon NSW 2132
Waterproofing Croydon

Licensed Waterproofers Servicing Croydon & Surrounds

Want a reliable waterproofing company in Croydon? AB Sydney Waterproofing delivers licensed waterproofing in Croydon 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.

Like much of the inner west, Croydon is a mix of older brick homes and semis to walk-up units. Whatever the building, water finds the weakest point – a cracked grout line, a failed door sill, a blocked outlet or an unsealed joint – and the damage often shows up a long way from where the water gets in.

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.

Croydon Waterproofing Services

What We Waterproof in Croydon

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

Shower recess and bathroom floor waterproofed before tiling Bathrooms

Bathroom & Shower Waterproofing Croydon

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

  • Leak repairs before you renovate or sell
  • Floor wastes, corners and junctions sealed
  • Certified membranes for renovations
Bathroom waterproofing
Brick wall treated and sealed against damp Brickwork

Rising & Penetrating Damp Treatment

Salt marks, blistering render and mould low on internal walls all point to water moving through the masonry. We seal external walls and parapets and treat rising damp to stop the problem coming back.

  • Damp-proofing for older homes
  • External brick sealers
  • Render and paint protection
Brick wall waterproofing
Balcony waterproofing membrane applied before new tiles Balconies

Balcony & Terrace Waterproofing Croydon

Balconies fail at the door sill, the drain and the balustrade fixings. Once water gets past the membrane it stains the ceiling below, lifts tiles and leaves white efflorescence on the soffit. We strip and re-waterproof balconies in Croydon with UV-stable external membranes to AS 4654.

  • Strata and owners’ corporation repairs
  • Balustrade fixing and edge sealing
  • Re-tiling after waterproofing
Balcony waterproofing
Laundry floor waterproofed with a membrane Laundry leaks

Laundry Floor Waterproofing

Most laundry leaks come from the junction between floor and wall, where water from machines and tubs sits and soaks in. We waterproof the floor and turn the membrane up the walls so water stays contained.

  • Laundry floor and upturn membranes
  • Sealed wall and floor junctions
  • Extensions and converted spaces
Laundry waterproofing

More Waterproofing Services in Croydon

  • 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

    Dincel, block and retaining walls, basement slabs and car parks protected against groundwater and soil moisture.

  • 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

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

  • 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

    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 Homeowners & Strata Managers in Croydon Call Us

Fully Licensed Team

Every Croydon job is done under Waterproofing Licence 36763C, so the work is recognised by insurers, certifiers and strata committees.

Backed for 7 Years

Our waterproofing comes with a 7-year written warranty – long after the tiles go down, we still stand behind the work.

We Find the Real Cause

Water rarely shows up where it gets in. A free inspection traces the leak to its source before we quote, so you pay to fix it once.

Certified Work

Wet areas are waterproofed to AS 3740 and outdoor areas to AS 4654, and you receive a compliance certificate when we finish.

Residential to Commercial

We work for homeowners, landlords, builders, strata managers and businesses across Croydon and nearby suburbs.

Clear, Written Quotes

A free written quote that explains what’s wrong, the system we’ll use and the price – no surprises when the job is done.

Know the Warning Signs

Warning Signs of Water Damage in Croydon

Spotted any of these at your Croydon 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.

  • Damp, peeling paint low on walls

    Rising or penetrating damp is getting into the masonry.

  • White salt on brick or concrete

    Efflorescence means water is moving through the masonry.

  • Stains on the ceiling below

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

  • Swollen skirting or door frames

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

How We Work

Our Four-Step Waterproofing Process

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

01

Free Inspection

We visit your Croydon 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 Croydon NSW 2132 & Surrounds

We provide waterproofing throughout Croydon 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 Croydon FAQs

Croydon Waterproofing FAQs

Yes. We waterproof older brick homes and semis to walk-up units throughout Croydon NSW 2132 and the surrounding inner west. Call 0449 725 455 to book a free inspection.

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. We find where the moisture is coming from and treat and seal the brickwork with a system suited to the wall’s age and type.

Yes. We work for homeowners, landlords, builders, owner-builders, strata managers and businesses, and supply the certificates and warranties each of them needs.

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

Learn More About Waterproofing

View all waterproofing guides

Leaking Shower or Balcony in Croydon?

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