Laundry waterproofing solutions Sydney

Water damage in the laundry is more common than most homeowners think. Even a small leak can lead to mold, structural issues, and costly repairs. At MB9 Australia Pty Ltd, we specialize in professional laundry waterproofing solutions in Sydney, ensuring your laundry is protected, functional, and long-lasting.

Whether you live in a modern apartment in Surry Hills, a classic terrace in Leichhardt, or a family home in Mosman, our licensed contractors deliver expert waterproofing that safeguards your home while supporting stylish and practical laundry renovations.

Why Laundry Waterproofing Is Essential

Many homeowners assume that waterproofing is only for bathrooms or balconies. But laundries face unique risks:

  • Constant water exposure from sinks, washing machines, and spills

  • Moisture penetration through floors and walls

  • Vulnerable corners, junctions, and penetrations where water can leak

  • Condensation from clothes dryers and appliances

Without professional waterproofing, even minor leaks can lead to mold, warped floors, and damage to cabinetry. MB9 ensures your laundry is properly sealed and protected for years to come.

Common Laundry Problems Waterproofing Can Solve

Sydney homes, particularly older ones, often experience:

  • Leaking floors or skirting boards in inner west terraces like Marrickville or Glebe

  • Water penetration under tiles in eastern suburbs apartments

  • Mold and damp smells in compact laundries in Surry Hills or Newtown

  • Damaged cabinetry and cabinetry swelling from unnoticed leaks

Waterproofing prevents these issues before they start, protecting your investment and saving you money on repairs down the line.

Types of Laundry Waterproofing Solutions

At MB9, we offer tailored waterproofing solutions depending on the space, materials, and existing conditions.

1. Liquid Membrane Waterproofing

A liquid-applied membrane is painted directly onto the laundry floor and walls, creating a seamless barrier. It’s perfect for corners, joints, and hard-to-reach areas and works well in apartments and smaller laundry spaces.

2. Sheet Membrane Waterproofing

Sheet membranes are pre-formed barriers that are adhered to the floor and walls. They are extremely durable and ideal for larger spaces or high-traffic laundries in homes across Mosman or North Sydney.

3. Cementitious Waterproofing

Mixed directly into mortar or tile adhesive, this method is excellent for laundry renovations where tiles are being replaced or installed. Cementitious solutions are cost-effective and highly reliable when installed by professionals.

Our Process for Laundry Waterproofing

Proper waterproofing requires precise technique and attention to detail. MB9 follows a structured process for every project:

Step 1: Site Assessment

We inspect your laundry, check for existing leaks, and assess the floor and wall condition. Older homes, like those in Balmain or Leichhardt, often require additional preparation due to aged materials.

Step 2: Material Selection & Recommendation

We recommend the best waterproofing method based on your laundry’s size, use, and budget. For high-traffic family homes, durable sheet membranes or liquid membranes are often preferred.

Step 3: Surface Preparation

The floor and walls are cleaned, leveled, and prepped to ensure proper adhesion. Any damaged tiles or cabinetry are repaired or removed as needed.

Step 4: Waterproofing Installation

Our licensed contractors apply the membrane or solution carefully, paying special attention to corners, drains, and penetrations. Every seam is sealed to prevent leaks.

Step 5: Testing & Inspection

Once installed, we conduct water tests to ensure your laundry is fully protected. Only after passing our rigorous checks do we consider the job complete.

Neighborhood-Specific Considerations

Different areas of Sydney present unique challenges:

  • Inner West (Leichhardt, Marrickville, Newtown): Older terraces often have uneven floors, requiring careful surface preparation before waterproofing.

  • Eastern Suburbs (Bondi, Coogee): Compact laundries in apartments need liquid membrane solutions for seamless protection.

  • Lower North Shore (Mosman, Neutral Bay): Luxury homes with designer tiles benefit from sheet membranes integrated with high-end finishes.

  • Northern Beaches & Sutherland Shire: Coastal homes face higher humidity and may need additional sealing measures.

Our local experience ensures that each waterproofing solution is tailored to both the home and the neighborhood.

Common Mistakes Homeowners Make

DIY waterproofing or inexperienced contractors can leave gaps that result in future problems:

  • Skipping corners or wall-floor junctions

  • Using substandard membranes or adhesives

  • Ignoring surface preparation

  • Failing to seal around drains and penetrations

MB9’s licensed team prevents these issues by using professional-grade materials and proven techniques.

Cost Considerations

The cost of laundry waterproofing in Sydney depends on:

  • Size of the laundry: Larger spaces require more materials and labor.

  • Type of waterproofing: Liquid, sheet, or cementitious solutions have different costs.

  • Existing floor and wall condition: Older homes may need additional preparation.

  • Integration with renovations: Waterproofing is often done alongside tiling, cabinetry, or plumbing upgrades.

MB9 provides transparent, no-surprise quotes and helps homeowners balance cost, durability, and design.

Benefits of Professional Laundry Waterproofing

  • Protects your home from water damage and mold

  • Extends the life of flooring and cabinetry

  • Enhances resale value by safeguarding your investment

  • Provides peace of mind with guaranteed professional installation

Homeowners in Surry Hills, Mosman, and Marrickville have shared that waterproofing upgrades make their laundry easier to maintain and safer for families.

Case Study

A project involved a compact laundry in Marrickville with recurring water leaks and damp cabinetry. MB9’s team:

  1. Removed damaged tiles and cabinetry panels

  2. Prepped the floor and walls for membrane installation

  3. Applied a professional liquid membrane, sealing corners and penetrations

  4. Reinstalled tiles and cabinetry, integrating the waterproofing seamlessly

The result was a fully functional, protected laundry. The homeowners reported no leaks or damp issues even after months of use.

Maintaining Your Laundry Waterproofing

After installation, simple practices help maintain your waterproofing:

  • Clean spills promptly to prevent water from pooling

  • Inspect tiles, joints, and drains regularly

  • Avoid heavy impact on tiled areas

  • Keep cabinetry raised slightly off the floor where possible

These precautions prolong the life of your waterproofing and reduce the chance of future repairs.

Why MB9 Australia Pty Ltd Is Sydney’s Trusted Contractor

Choosing the right contractor makes all the difference. MB9 brings:

  • Licensed and insured expertise in kitchen, bathroom, and laundry renovations

  • Local knowledge of Sydney homes across inner west, eastern suburbs, lower north shore, and northern beaches

  • Full-service approach: from assessment to installation to maintenance guidance

  • Quality assurance: using professional-grade waterproofing systems

Whether your home is in Balmain, Mosman, Newtown, or Surry Hills, MB9 ensures your laundry is fully protected, functional, and visually appealing.

Ready to Protect Your Laundry?

Don’t wait until water damage costs thousands in repairs. A professional laundry waterproofing solution in Sydney safeguards your home, extends the life of your floors and cabinetry, and gives you peace of mind.