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Waterproofing & Leak Specialists

Waterproofing That Lasts

Over 23 years of experience across Sydney's Eastern Suburbs.

Lifetime Workmanship Warranty

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Web design process
  • Your local Eastern Suburbs specialist
  • 23 years of hands-on experience
  • We find the source, not just the visible leak
  • Clear repair options to suit your budget

Waterproofing Solutions for Sydney's Eastern Suburbs

Trusted by homeowners and strata managers across Vaucluse, Watsons Bay, Dover Heights, Rose Bay, Point Piper, Bellevue Hill, Bondi and North Bondi.

Water can travel a long way before it becomes visible. We find the source of the problem, explain what is happening and provide practical repair options to suit your property and budget.

  • Balcony waterproofing
  • Roof waterproofing
  • Bathroom waterproofing
  • Basement and wall waterproofing
  • Leak detection and repairs
Water damage before remediation
Before
After waterproofing treatment
After

Not Sure Where the Water Is Coming From?

Leaks are not always obvious. With 23 years of experience, we can investigate the source, explain the problem and give you clear repair options to suit your budget.

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Waterproofing Services

Explore our waterproofing, leak detection and repair services for homes, strata properties and commercial buildings.

All
Residential
Commercial
Repair
Specialist
Emergency
Industrial
Renovation
Popular
Bathroom Waterproofing
Residential
Professional bathroom waterproofing in Sydney's Eastern Suburbs to prevent leaks, mould, and structural damage. Our team ensures bathrooms are fully sealed and compliant with Australian standards.
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Popular
Balcony Waterproofing
Residential
Protect your home or apartment with balcony waterproofing in Vaucluse, Rose Bay, Dover Heights, and surrounding Eastern Suburbs. We use durable membranes and expert techniques to stop leaks.
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Basement Waterproofing
Residential
Our basement waterproofing services prevent water ingress, dampness, and mould growth. Serving Vaucluse, Bellevue Hill, Point Piper, and all Eastern Suburbs with fast, affordable solutions.
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Popular
Roof Waterproofing
Residential
Keep your property dry with roof waterproofing for tiled, metal, and flat roofs. High-quality, durable roofing membranes that withstand coastal weather.
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Shower Waterproofing
Residential
We specialise in shower waterproofing that stops leaks before they cause damage. From renovations to repairs, ensuring a fully sealed, durable finish.
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Swimming Pool Waterproofing
Residential
Protect your pool structure with swimming pool waterproofing for new builds or repairs. Reliable solutions to prevent leaks and structural damage.
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Retaining Wall Waterproofing
Residential
Stop water seepage and soil erosion with retaining wall waterproofing. Expert solutions for residential and commercial properties in Eastern Suburbs.
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Popular
Commercial Waterproofing
Commercial
Our commercial waterproofing services cover shops, offices, restaurants, and strata buildings. Efficient, reliable, and long-lasting solutions.
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Strata Waterproofing
Commercial
Protect balconies, rooftops, and common areas with strata waterproofing services. We work with strata managers to ensure compliance and durability.
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Kitchen Waterproofing
Residential
Prevent water damage in your kitchen with professional kitchen waterproofing. We seal wet areas, cabinetry, and flooring to protect against leaks.
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Planter Box Waterproofing
Residential
Our planter box waterproofing services prevent water leaks and damage to surrounding surfaces, ensuring your garden areas stay safe and structurally sound.
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Bathroom Renovation Waterproofing
Renovation
Ensure long-lasting protection for your renovations with bathroom renovation waterproofing. Fully compliant and durable solutions for Eastern Suburbs homes.
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Popular
Leak Detection & Repair
Repair
We provide leak detection and waterproofing repairs for bathrooms, balconies, basements, and roofs. Fast, reliable, and guaranteed solutions.
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Torch-On Membrane Waterproofing
Specialist
Durable torch-on membrane waterproofing for roofs, balconies, and podiums. Ideal for coastal Sydney properties needing high-performance waterproofing.
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Liquid Membrane Waterproofing
Specialist
Seamless liquid membrane waterproofing for bathrooms, rooftops, and wet areas. Flexible, durable, and fully guaranteed for long-term protection.
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Waterproofing Repairs
Repair
Affordable waterproofing repair services to fix failed membranes, cracks, or water damage. Reliable workmanship backed by a lifetime warranty.
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External Wall Waterproofing
Residential
Protect your property's exterior with external wall waterproofing. Stops water ingress, prevents mould, and maintains structural integrity.
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Under Tile Waterproofing
Specialist
Our under tile waterproofing ensures bathrooms, kitchens, and balconies are fully sealed, preventing hidden leaks and future damage.
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Expansion Joint Waterproofing
Specialist
Flexible expansion joint waterproofing prevents water penetration in structural joints. Perfect for residential and commercial buildings across Sydney.
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Industrial Waterproofing
Industrial
We deliver heavy-duty industrial waterproofing solutions for warehouses, factories, and large-scale facilities. Built to last in demanding environments.
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Popular
Emergency Waterproofing Services
Emergency
Available 24/7, our emergency waterproofing services respond fast to leaks and urgent water damage. Protect your property immediately with expert solutions.
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Water damage inspection on an Eastern Suburbs property
How We Find and Fix Water Leaks
On-site inspection of water damage before waterproofing repairs
1.

Inspect

We investigate where the water is entering, not just where the damage appears.

2.

Explain

We clearly explain the cause of the problem and what needs to be repaired.

3.

Provide Options

Where possible, we provide different repair options based on your property and budget.

4.

Repair Properly

We complete the agreed work using proven waterproofing systems and leave the site clean.

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Testimonials

Discover how our service can benefit you

Experience and Reliability

I have had the privilege to have worked with Issac Zorzano for a period of 9 years. Issac has shown that he carries out all tasks related to waterproofing with the greatest integrity.

Felix Barda

Consulting Engineer, Private contractor

Customer Satisfaction

After years of dealing with “so-called water specialists” miss-diagnosing and unsuccessfully trying to solve our water problems, we started to contract Issac.He has proven to be a most competent and efficient contractor. He has all the qualities that make him valuable to us as a contractor

Brian C.F.

Executive committee member, The Enclaves

Seamless Waterproofing Service

We have used Zorzano Waterproofing on large commercial buildings and always found the quality of the work to be exceptionally good. The work is carried out promptly and without any fuss. The skills of the operatives are very good and their attitude to what their are doing is excellent.

R. Hallat

Private contractor, Yarrawarrah plumbing PRY. LTD.

Quality and Warranty

I have worked with Zorzano Waterproofing in many of my projects and results have always been consitent and long-lasting

John Dalikiaris

Architect