Balcony & Terrace
Balconies and terraces are the most common source of strata leaks. We remove failed membranes and install compliant systems that protect the lots below and the building structure.
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Water damage in a strata building rarely stays in one lot. Sydney One Waterproofing delivers licensed, compliant strata waterproofing for balconies, common property, basements and podiums across Sydney apartment complexes, with documented scopes and certification for your owners corporation and a 10-year workmanship warranty.
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Strata buildings face waterproofing challenges that single homes never do. When a balcony membrane or podium seal fails, water rarely stays in one lot: it seeps through floors, ceilings and shared walls, affecting several units and large areas of common property at once. Left unchecked, these failures become costly remedial claims and disputes between lot owners and the owners corporation.
In most NSW schemes, waterproofing membranes are common property under the Strata Schemes Management Act 2015, making them the owners corporation's responsibility. Our team carries out leak detection, prepares a clear remedial scope, and installs compliant membrane systems that meet AS 4654 and relevant Australian Standards. We provide documented scopes, specifications and certification suitable for strata committees, building managers and insurers.
Proactive waterproofing is one of the highest-return investments an owners corporation can make. Here is what professional protection delivers for your scheme.
A single failed balcony or podium membrane can damage multiple lots and common property at once. Proper waterproofing stops water before it spreads between units and into the building's structure.
A dry, well-maintained building protects the value of every lot, supports the scheme's capital works fund, and keeps the complex attractive to owners, tenants and buyers.
Waterproofing prevents water ingress that weakens the building's structure, extending its lifespan and reducing the emergency repairs and special levies that strain a scheme's budget.
Sealing balconies, walls and wet areas removes the moisture that mould and mildew need to grow, protecting the health and comfort of residents across the building.
Every job complies with AS 4654 and relevant Australian Standards, with documentation that supports the owners corporation's Section 106 duty and keeps insurance and certification in order.
We stage and schedule works with clear communication to residents and building management, coordinating access lot by lot so the building keeps running smoothly.
From balconies and podiums to common property roofs and basement car parks, we protect every part of your Sydney strata complex that is exposed to water.
Balconies and terraces are the most common source of strata leaks. We remove failed membranes and install compliant systems that protect the lots below and the building structure.
Get a quote →Podiums and planter boxes degrade membranes over time and leak into the spaces below. We waterproof these high-risk areas to stop seepage into balconies, basements and common areas.
Get a quote →The roof is the building's first line of defence and clearly common property. Durable membranes and flashings protect shared rooftops against leaks through Sydney's heavy rain and intense sun.
Get a quote →Below-ground protection for shared basements and underground car parks. Specialised coatings and drainage stop rising damp and water infiltration through walls and slabs.
Get a quote →High-rise and multi-storey facades face wind-driven rain and movement. We apply penetrative sealers and flexible systems that guard external walls against water penetration at every level.
Get a quote →Bathrooms, laundries and kitchens in apartments leak into neighbouring lots when membranes fail. We re-waterproof wet areas to AS 3740 to stop water reaching adjoining units.
Get a quote →Specialised waterproofing for lift pits, plant rooms and service areas, creating a robust barrier that protects shared building equipment from water damage and corrosion.
Get a quote →For existing leaks and water damage, we provide leak detection, a documented remedial scope, membrane replacement and reinstatement, restoring common property and affected lots.
Get a quote →For a strata scheme, the cost of getting waterproofing wrong is measured in special levies and disputes. Here is how proactive, professional waterproofing compares to patch-and-hope repairs.
A clear, four-step process that takes the guesswork out of protecting your property.
A licensed waterproofer inspects the building, uses leak detection where needed, and identifies the leak paths across balconies, common property and affected lots.
The owners corporation receives a documented scope of works with membrane specifications, staging, timeline and a clear, no-obligation quote for the committee.
Our team removes failed membranes, installs compliant systems to Australian Standards, and reinstates finishes, staging works around residents lot by lot.
We complete a final check, provide compliance confirmation and certification for the scheme and insurers, and hand over your written 10-year workmanship warranty.
Real feedback from Sydney strata managers and owners corporations we have helped protect from water damage.
"They remediated failed balcony membranes across eight units in our complex. Documented scope, clear communication with residents, and certification for our records. The committee was very impressed."
"Diagnosed a podium leak three other contractors missed. Honest assessment, detailed remedial scope, and a fast turnaround. The go-to team for the strata portfolios we manage now."
"Re-waterproofed the common property roof and basement of our apartment block. On budget, minimal disruption to residents, and full compliance documentation at handover. Highly recommend."
Strata waterproofing is our specialty, but our licensed crews also deliver tested systems for residential, commercial and new-construction projects across Sydney.
Discuss Your ProjectHomes, townhouses and renovations. Compliant waterproofing for bathrooms, balconies, kitchens and laundries.
Offices, retail, warehouses and high-rise. Scalable crews and minimal disruption with after-hours options across Sydney.
Apartment complexes, common property and remedial works. We coordinate with strata managers and committees from inspection to certification.
Builders and developers trust us for code-compliant waterproofing across new builds and large-scale projects.
One of our licensed waterproofers will assess your strata building, identify the right remedial system, and provide a documented scope and quote for your committee with no obligation.
We respond within 24 hours, Monday to Saturday.
Common questions about waterproofing your Sydney strata building. Still curious? Our team is one call away.
Talk to a SpecialistYour trusted partner for expert waterproofing solutions, ensuring long-lasting protection for your home and business from water damage.
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