Professional balcony and basement waterproofing for homes, units and businesses in Mascot. Licensed team, written quotes and a 7-year warranty on every job.
Mascot NSW 2020
Searching for experienced waterproofers in Mascot? We specialise in waterproofing services in Mascot for homeowners, landlords, builders and strata managers. From balcony leaks to basement and rooftop repairs, our licensed team gets it right the first time – free inspection, written quote, 7-year warranty.
From apartment towers and warehouses to older homes, the properties we waterproof in Mascot and across the inner south vary a lot. What doesn’t change is our approach: inspect carefully, find the cause, and use a membrane system that suits the surface, the exposure and how the space is used.
Every job starts with finding out exactly where the water is coming from. We then recommend the simplest fix that will last – whether that’s tile injection, a remedial membrane or a full strip-out – and explain the options clearly before you decide.
We offer the full range of waterproofing in Mascot, with particular focus on balcony, basement, rooftop and bathroom work – the areas where water causes the most damage when membranes fail.
Outdoor areas
A balcony over a living room or garage needs a membrane that handles full sun, heavy rain and movement. We prepare the slab properly, correct falls where needed, and detail every edge, outlet and threshold so water drains away instead of finding its way inside.
Basements
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.
Flat roofs
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.
Showers & en-suites
Showers leak when the membrane is cracked, missing at the hob or wall junction, or wasn’t sealed around the floor waste. In Mascot we test, trace and repair the actual failure point – then re-waterproof to AS 3740 so the repair lasts as long as the tiles.
Box and eaves gutters re-membraned so storm water runs off the roof instead of spilling into walls and ceilings.
Lift pits waterproofed to stop seepage, standing water and corrosion that can damage lift equipment and trigger costly call-outs.
A properly sealed laundry floor and upturn protects floors, walls and neighbouring rooms from washing machine and tub leaks.
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.
Damp brickwork lets water track inside. We treat and seal masonry walls to keep moisture out for good.
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.
Every Mascot job is done under Waterproofing Licence 36763C, so the work is recognised by insurers, certifiers and strata committees.
A free written quote that explains what’s wrong, the system we’ll use and the price – no surprises when the job is done.
Our waterproofing comes with a 7-year written warranty – long after the tiles go down, we still stand behind the work.
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.
Wet areas are waterproofed to AS 3740 and outdoor areas to AS 4654, and you receive a compliance certificate when we finish.
We work for homeowners, landlords, builders, strata managers and businesses across Mascot and nearby suburbs.
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.
Groundwater is getting past below-ground walls or joints.
Water is passing through the wall instead of draining behind it.
Box gutters or roof outlets can’t cope and spill inside.
The bond has failed because the bed underneath is wet.
The same clear four steps on every Mascot job, large or small.
We visit your Mascot 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 Mascot and the surrounding inner south. 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 apartment towers and warehouses to older homes throughout Mascot NSW 2020 and the surrounding inner south. Call 0449 725 455 to book 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 waterproof block and Dincel retaining walls before backfill and coordinate with your builder so the membrane and drainage go in at the right stage.
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.
Yes. We work for homeowners, landlords, builders, owner-builders, strata managers and businesses, and supply the certificates and warranties each of them needs.
Why balconies fail at the door sill, drain and balustrade, and how the right membrane stops it.
Read MoreLiquid, sheet or injection – which system suits which job.
Read MoreHow a roof membrane handles Sydney’s sun, heat and storms.
Read MoreLicensed waterproofers – free inspection, written quote and a 7-year warranty.
