From a single leaking balcony to a full bathroom re-waterproof, we do it properly the first time across Neutral Bay – licensed, certified and guaranteed for 7 years.
Neutral Bay NSW 2089
Looking for a professional waterproofing service in Neutral Bay? AB Sydney Waterproofing are experts in providing reliable residential, strata and commercial waterproofing across Neutral Bay NSW 2089. As licensed waterproofers in Neutral Bay, 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 Neutral Bay and the wider lower North Shore range from harbourside apartments and strata blocks to Federation homes. 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.
We offer the full range of waterproofing in Neutral Bay, with particular focus on balcony, bathroom, rooftop and brick wall work – the areas where water causes the most damage when membranes fail.
Balconies
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 Neutral Bay with UV-stable external membranes to AS 4654.
Showers & en-suites
Most bathroom leaks start at the same few weak points: cracked grout, a poorly sealed floor waste, or a membrane that stops short at the wall. We find exactly where water is escaping and fix it – with tile injection when the tiles are sound, or a new membrane when they’re not.
Roofs & decks
A roof membrane only works if every upstand, outlet and penetration is sealed. We prepare the surface, reinforce joints and corners, and apply a UV-stable system matched to how the roof is used – plant deck, terrace or non-trafficable roof.
Masonry
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.
Dincel, block and retaining walls, basement slabs and car parks protected against groundwater and soil moisture.
Long box gutters overflow inside when their lining fails. We seal gutters and outlets to keep water on the outside.
Lift pits waterproofed to stop seepage, standing water and corrosion that can damage lift equipment and trigger costly call-outs.
Laundries leak quietly behind machines and tubs. We waterproof the floor and walls properly so the problem doesn't come back.
Floor waterproofing for homes, units and businesses, applied with the right primer and system for concrete, screed or timber subfloors.
Shower leaking but tiles still solid? Resin injected through the grout lines can seal it in a day, without a full renovation.
Planter boxes and podium gardens lined with root-resistant membranes and proper drainage so they don't leak into walls or car parks.
Concrete pools and spas waterproofed so the shell holds water and the paving and ground around it stay dry.
Before any work is quoted, we pinpoint where the water is coming from – saving you from paying to fix the wrong thing.
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.
One leaking shower or a whole building – we scale the team and schedule to suit, with minimal disruption.
You’ll know the scope and price in writing before we start. The price we quote is the price you pay for that scope.
You get a written 7-year warranty on our workmanship, so you can renovate, rent or sell with confidence.
Stains and damp patches can be metres from the real leak. We track the water back to where it enters before recommending a fix.
Internal wet areas to AS 3740 and external membranes to AS 4654, with a compliance certificate for your records, sale or strata.
These are the early warning signs that waterproofing has failed. Catch them early and the repair is usually smaller.
A bathroom, balcony or roof above is leaking through the slab.
Efflorescence means water is moving through the masonry.
The bond has failed because the bed underneath is wet.
Water is sitting behind tiles or inside the wall cavity.
Box gutters or roof outlets can’t cope and spill inside.
Rising or penetrating damp is getting into the masonry.
How every waterproofing job in Neutral Bay runs, from first call to final certificate.
We visit your Neutral Bay property and trace the leak to its source.
You get the findings, the fix and the cost in writing.
We clean, repair and prime the substrate, then build up the membrane to the specified thickness.
Wet areas are flood tested where suitable, then certified and covered by our warranty.
We provide waterproofing throughout Neutral Bay and the surrounding lower North Shore. 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
Yes – we work across Neutral Bay and nearby suburbs every week, for homeowners, landlords, builders and strata managers. Call 0449 725 455 to arrange a free inspection.
Yes. We inspect and quote for owners’ corporations, coordinate access with residents and provide warranties and certificates for the strata records.
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 shower and balcony repairs take a few days including curing time; tile injection is usually done in a day. Larger roofs, basements and strata jobs are scheduled in stages – we’ll give you a timeframe with your quote.
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.
Why balconies fail at the door sill, drain and balustrade, and how the right membrane stops it.
Read MoreWhat a failed bathroom membrane can cost you, and why getting it right matters.
Read MoreHow a roof membrane handles Sydney’s sun, heat and storms.
Read MoreBook a free inspection and written quote from licensed waterproofers.
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