From a single leaking bathroom to a full pool re-waterproof, we do it properly the first time across Pennant Hills – licensed, certified and guaranteed for 7 years.
Pennant Hills NSW 2120
Need dependable waterproofing in Pennant Hills? Our licensed team provides expert Pennant Hills waterproofing for houses, apartments, townhouses and commercial buildings. We repair leaking bathrooms, pools, brick walls and more using proven membrane systems, with every job backed by a written 7-year warranty.
From leafy family homes to units near the station, the properties we waterproof in Pennant Hills and across the upper North Shore and Hills area 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.
Our process is simple: a free inspection, a clear written quote, proper surface preparation, the right membrane applied at full thickness, and testing and certification at the end. No shortcuts, and no paying twice for the same leak.
We offer the full range of waterproofing in Pennant Hills, with particular focus on bathroom, pool, brick wall and basement work – the areas where water causes the most damage when membranes fail.
Showers & en-suites
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 Pennant Hills to AS 3740, sealing floor wastes, corners and wall junctions properly.
Pools
Re-tiling an older pool is the best time to waterproof it properly. We prepare and repair the shell, apply a pool-grade membrane and seal fittings and joints before your tiler starts.
Brickwork
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.
Basements
Below-ground waterproofing has to resist constant water pressure, so the system matters. We use membranes suited to the wall type and conditions – applied before backfill on new builds, or from the inside where excavation isn’t practical.
Balconies, terraces and courtyards re-membraned at door sills, drains and balustrades so water stops reaching rooms and ceilings below.
Flat concrete roofs and roof decks re-membraned so they shed water instead of ponding and leaking into the floor below.
Long box gutters overflow inside when their lining fails. We seal gutters and outlets to keep water on the outside.
Positive and negative-side membranes for lift pits that sit below the water table, on new builds or as a remedial fix.
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.
Epoxy resin injected under existing tiles seals a leaking shower without demolition – a faster, lower-cost fix when the tiles are still sound.
Planter boxes and podium gardens lined with root-resistant membranes and proper drainage so they don't leak into walls or car parks.
Before any work is quoted, we pinpoint where the water is coming from – saving you from paying to fix the wrong thing.
We hold Waterproofing Licence 36763C and put our name to every membrane we install – no unlicensed subcontractors.
Every job in Pennant Hills 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.
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.
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.
More loss than evaporation usually means a failed membrane or joint.
Rising or penetrating damp is getting into the masonry.
Efflorescence means water is moving through the masonry.
Groundwater is getting past below-ground walls or joints.
How every waterproofing job in Pennant Hills runs, from first call to final certificate.
We visit your Pennant Hills 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.
From homes and units to commercial buildings, we cover every part of Pennant Hills NSW 2120 and the surrounding upper North Shore and Hills area. 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
Yes – we work across Pennant Hills and nearby suburbs every week, for homeowners, landlords, builders and strata managers. Call 0449 725 455 to arrange a free inspection.
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. Re-tiling is the ideal time to repair the shell and apply a new pool membrane, so the new tiles aren’t hiding an old leak.
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.
It depends on the size of the area, how much damage the leak has caused and the membrane system needed. Every job starts with a free inspection and a written, itemised quote, so you know the exact price before work begins.
The most common reasons showers and bathrooms leak, and the early warning signs to look for.
Read MoreFalling water levels, cracks and damp paving – the signs your pool is leaking.
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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