Bathroom Waterproofing
AS 3740 compliant bathroom waterproofing in Sydney. Membrane systems for showers, wet areas, and floors that stop leaks at the source.
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Stop leaks, prevent damage, and protect your property with Sydney One Waterproofing. Over a decade of certified workmanship across bathrooms, balconies, pools, and commercial sites, backed by a 10-year warranty.
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From new builds to repairs, we deliver long-lasting waterproof protection using industry-leading membranes and proven application techniques.
AS 3740 compliant bathroom waterproofing in Sydney. Membrane systems for showers, wet areas, and floors that stop leaks at the source.
Get a quote →Protect cabinets, flooring, and walls from moisture damage. Compliant waterproofing for kitchens, laundries, and utility rooms.
Get a quote →External balcony, deck and rooftop waterproofing engineered to withstand Sydney's harsh weather and UV exposure long term.
Get a quote →Professional pool waterproofing in Sydney with specialised membranes for concrete shells, water features, and ponds.
Get a quote →We begin with a detailed on-site inspection to identify moisture sources and problem areas, ensuring the right system is matched to your job.
Surfaces are cleaned, repaired, and primed to ensure perfect membrane adhesion and a long-lasting result.
We apply high-performance waterproof membranes engineered for Sydney's climate, complying with AS 3740 and AS 4654 standards.
Every joint, edge, and corner is sealed using durable flashings. This step ensures complete coverage with zero weak points.
A thorough quality check closes out the process before we hand over your written 10-year warranty for total peace of mind.
Trusted by hundreds of homeowners, strata managers and businesses across Sydney.
"Sydney One Waterproofing did our bathroom renovation. Professional, on time and the finish was spotless. Two years later, zero leaks. Worth every dollar."
"Diagnosed a balcony leak three other companies missed. Honest assessment, fair pricing, and a fast turnaround. Highly recommend this team."
"Used them for our strata complex. Excellent communication with residents and meticulous work. Job was completed ahead of schedule. Will use again."
From single-bathroom renovations to multi-level commercial sites, our crews deliver tested waterproofing systems that hold up to Sydney's coastal climate.
Discuss Your ProjectHomes, townhouses, and renovations. Compliant waterproofing for bathrooms, balconies, kitchens and laundries.
Offices, retail and hospitality fitouts. Minimal disruption with after-hours job options across Sydney.
Apartment buildings, common areas and remediation. We coordinate with strata managers from start to handover.
Builders and developers trust us for code-compliant waterproofing across new builds and large-scale projects.
One of our licensed waterproofers will assess your property, identify the right solution, and give you a clear quote with no obligation.
We respond within 24 hours, Monday to Saturday.
Common questions about our Sydney waterproofing services. Still curious? Our team is one call away.
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