Leaking bathroom, balcony or brick wall? We find the real cause and fix it with the right membrane – licensed, with a free inspection and a 7-year warranty.
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Gladesville NSW 2111
Need dependable waterproofing in Gladesville? Our licensed team provides expert Gladesville waterproofing for houses, apartments, townhouses and commercial buildings. We repair leaking bathrooms, balconys, brick walls and more using proven membrane systems, with every job backed by a written 7-year warranty.
Properties across Gladesville and the wider lower north and Ryde area range from waterside homes and unit blocks to Federation cottages. 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.
From inside the bathroom to the roof and below ground, we waterproof it all in Gladesville. These four services are the ones we’re asked for most often.
Wet areas
Showers leak when the membrane is cracked, missing at the hob or wall junction, or wasn’t sealed around the floor waste. In Gladesville we test, trace and repair the actual failure point – then re-waterproof to AS 3740 so the repair lasts as long as the tiles.
Outdoor areas
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 Gladesville with UV-stable external membranes to AS 4654.
Damp walls
Solid brick walls can draw moisture up from the ground or let rain through, causing flaking paint, salt deposits and musty rooms. We treat and seal brick walls, parapets and chimneys in Gladesville so moisture stays out of the masonry.
Retaining walls
Damp patches, salt and moss on a retaining wall, or water across a garage floor after rain, mean water is getting through instead of draining away. We find the entry points and seal walls, slabs, joints and lift pits properly.
Remedial roof membranes for homes, apartments and commercial buildings, built to handle UV, heat and heavy downpours.
Long box gutters overflow inside when their lining fails. We seal gutters and outlets to keep water on the outside.
Lift pits and shafts sealed against groundwater to protect lift equipment and stop corrosion in apartment and commercial buildings.
A properly sealed laundry floor and upturn protects floors, walls and neighbouring rooms from washing machine and tub leaks.
Concrete and screed floors waterproofed for wet areas, ground floors and commercial spaces where water must stay out of the slab.
Epoxy resin injected under existing tiles seals a leaking shower without demolition – a faster, lower-cost fix when the tiles are still sound.
Planters and garden beds against walls or over slabs waterproofed and drained so roots and water stay where they belong.
Membranes for concrete pools and spas, applied before tiling on new pools or as a remedial fix for a pool that's losing water.
Not sure where the water is coming from? We trace leaks through slabs, walls, showers and balconies before any work is quoted.
We hold Waterproofing Licence 36763C and put our name to every membrane we install – no unlicensed subcontractors.
From a single bathroom to a full apartment block or commercial roof, we plan work around residents, tenants and business hours.
Our free quote spells out the problem, the solution and the cost, so you can decide with all the facts.
Every job in Gladesville is backed by a written 7-year warranty. If something isn’t right, we come back and fix it.
We test and trace the leak first, so the quote covers what’s actually failing – not guesswork.
We follow AS 3740 inside and AS 4654 outside, and hand over the paperwork your certifier, insurer or buyer will ask for.
These are the early warning signs that waterproofing has failed. Catch them early and the repair is usually smaller.
The bond has failed because the bed underneath is wet.
Water is sitting behind tiles or inside the wall cavity.
A bathroom, balcony or roof above is leaking through the slab.
Efflorescence means water is moving through the masonry.
Rising or penetrating damp is getting into the masonry.
Groundwater is getting past below-ground walls or joints.
The same clear four steps on every Gladesville job, large or small.
We visit your Gladesville property and trace the leak to its source.
A clear quote with the cause, the system and the price.
Surfaces prepared and primed, then the right membrane applied at full thickness.
Flood tested where suitable, with a compliance certificate and 7-year warranty.
We provide waterproofing throughout Gladesville and the surrounding lower north and Ryde area. 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 waterproof waterside homes and unit blocks to Federation cottages throughout Gladesville NSW 2111 and the surrounding lower north and Ryde area. 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 inspect and quote for owners’ corporations, coordinate access with residents and provide warranties and certificates for the strata records.
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. We inspect the leak, explain what’s causing it and give you a written quote at no cost and with no obligation.
The most common reasons showers and bathrooms leak, and the early warning signs to look for.
Read MoreWhy balconies fail at the door sill, drain and balustrade, and how the right membrane stops it.
Read MoreWhat happens when waterproofing fails – and how to avoid the cost.
Read MoreLicensed waterproofers – free inspection, written quote and a 7-year warranty.
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