Wet Area Waterproofing Brisbane & Gold Coast
Expert Wet Area Sealing Contractors for Queensland Homes & Renovations
Don’t let a hidden leak become a costly disaster. At SuperiorWaterproofing, we are expert wet area sealing providers that meets Australian Standards (AS 3740) and delivers peace of mind for homeowners, builders, and renovators. Whether you’re upgrading a bathroom, building a new ensuite, or waterproofing a laundry, our team ensures every surface is sealed, protected, and built to last. Our QBCC-licensed wet area waterproofing specialists deliver fully certified solutions across the Gold Coast, Brisbane, & Ipswich.
Our Wet Area Waterproofing Services
- Bathrooms & Ensuites Waterproofing for new builds and renovations
- Bathtubs, Showers Base and Wall Sealing
- Toilet and Laundry Waterproofing
- Wet room and spa waterproofing
- Commercial Amenities & Kitchen waterproofing
- Wet Basement Solutions
Compliance & Standards
- AS 3740:2021 – Waterproofing of Domestic Wet Areas
- Building Code of Australia (BCA)
- Manufacturer guidelines for maximum durability
Why Choose SuperiorWaterproofing?
Leak-Free Living Starts Here — Expert Wet Area Waterproofing for Gold Coast Homes
Strictly Australian Standards Compliant
- Our work always meets or exceeds the requirements of AS 3740-2010 (Waterproofing of Domestic Wet Areas). No exceptions.
Industry-Leading Materials
- We only use technologically advanced, BRANZ-appraised membranes and sealants from Australia’s most trusted manufacturers.
Experienced & Licensed Technicians
- Our waterproofers are not just tradespeople; they are career professionals who are fully licensed, insured, and trained in the latest application techniques.
Iron-Clad Written Warranty
- We stand behind every job with a comprehensive written warranty of up to 15 years. Your investment is safe with us.
Transparent & Honest Pricing
- The price we quote is the price you pay. We provide detailed, upfront quotes so you can make an informed decision with confidence.
Why Internal Wet Area Waterproofing Matters?
Wet areas like bathrooms, laundries, and powder rooms are exposed to constant moisture.
Prevents Structural Damage
Water seepage can corrode steel reinforcement, cause concrete spalling, and weaken wall substrates. Between 5th to 10th year, this compromises the integrity of your home’s structure.
Stops Mould and Mildew Growth
Avoids Expensive Repairs
Unsealed wet areas often lead to hidden leaks that damage cabinetry, flooring, and adjacent rooms. Waterproofing for internal wet areas upfront is far cheaper than repairing water damage later.
Protects Property Value
Proper internal wet area waterproofing adds longevity and reliability to your build or renovation. It’s a key selling point for buyers and a safeguard for homeowners.
What’s Included in Our Wet Area Sealing Services?
Site Inspection & Compliance Review
Assessment of substrate condition, drainage, and layout, Identification of high-risk zones (corners, joints, penetrations) and Compliance check against AS 3740, NCC, and QBCC
Surface Preparation
Cleaning and priming of all wet area surfaces, crack repairs, angle fillet installation, and moisture testing.
Waterproofing Membrane Application
Minimum two coats with curing time between layers
Optional Flood Testing
Recommended for showers, balconies, and high-risk wet zones
Certification & Warranty
QBCC compliant waterproofing certificate
Workmanship warranty (typically 6–15 years, depending on system)
All work including kitchen & laundry waterproofing are backed by a workmanship warranty and manufacturer product warranties ranging from 10 to 20 years.
What Are the Wet Area Waterproofing Methods, and Which Is Best for Queensland?
When it comes to protecting bathrooms, laundries, kitchens, and balconies from water damage, choosing the right internal wet area waterproofing Gold Coast isn’t just a technical decision — it’s a long-term investment.
1. Cementitious Waterproofing: A mix of cement and waterproofing agents applied as a slurry.
- Best for: New builds with concrete substrates.
- Pros: Affordable, easy to apply, good adhesion.
- Cons: Limited flexibility; not ideal for areas with movement or vibration.
2. Liquid-Applied Membranes (Acrylic or Polyurethane): Brush-on or roll-on membranes that cure into a seamless layer.
- Best for: Bathrooms, laundries, and balconies with complex shapes.
- Pros: Seamless coverage, flexible, easy to detail around drains and corners.
- Cons: Requires skilled application and proper curing time.
3. Sheet Membranes: Pre-formed sheets bonded to the substrate.
- Pros: High durability, consistent thickness, excellent water resistance.
- Cons: More expensive, requires heat welding or adhesives, harder to detail.
Which Waterproofing Method Is Best for Queensland?
Given Queensland’s climate and construction styles, liquid-applied polyurethane membranes are often the best choice for residential wet areas. It offer high flexibility to handle concrete movement, seamless coverage for complex bathroom layouts, and compatibility with AS3740 and QBCC standards.
Showcase of Our Waterproofing Projects
From Leaks to Lasting Protection – Contact Our Wet Area Sealing Specialists in Brisbane & Gold Coast
Get A Free Quote Today
QBCC-compliant waterproofing for wet areas across Brisbane, Gold Coast & Ipswich
📞 Call us now at 0468 760 750!
Testimonials
What Our Happy Customers Are Saying
Call us now: 0468760750
I had a persistent leak in my bathroom, and Shawn and his wet area sealing specialists were a pleasure to deal with from start to finish. Their communication was clear, and their advice on the best bathroom waterproofing details for my situation was spot on. The work was completed efficiently, and the results speak for themselves — no more leaks or damp patches. I’m very happy with the outcome and highly recommend this waterproofing bathroom from Brisbane.
I cannot fault these guys. Their team delivered outstanding leaky basement wall for our home—sealing cracks, installing proper drainage, and bathroom floor waterproofing systems with care and precision. Living near the water, we’ve had our share of moisture issues, but this crew knew exactly what to do. Great communication, a smooth process, and real attention to detail. Highly recommend these wet area sealing experts.
Do You Need Licensed Wet Area Sealing Contractors?
Call Us 0468 760 750 Now!
- Get obligation-free quotation from our wet area sealing experts, feel free to email us at info@superiorwaterproofing.com.au
Signs You Need a Wet Area Sealing Service Near You
Here are some of the key signs that your wet areas (bathrooms, laundry rooms, showers, etc.) may need waterproofing — catching these early can save a lot of time and money
Visual / Physical Signs
- Water stains or discoloration (brown/yellow patches) on walls, ceilings or floors.
- Peeling, blistering or bubbling paint/plaster
- Warped, cracked or loose tiles, especially in showers/floors/slopes
- Cracks in the substrate (walls, floor, around drains) or visible gaps in grouting/sealant
Smell / Health / Hidden Signs
- Musty, mouldy or damp smell
- Visible mould or mildew growth (black or green spots) on walls, ceilings
- Rusting metal fixtures around plumbing or drain fittings
- Humidity or condensation issues
Structural / Hidden / “At Risk” Signs
- Water seepage into adjacent rooms or floors
- Continuing or recurring leaks despite “fixes”
- Floor or wall movement
- Age or wear of existing waterproofing
- Poor drainage or slope in shower or wet-area floor
Internal Wet Area Waterproofing Australian Standard
AS 3740 is the primary Australian Standard governing waterproofing in internal domestic wet areas, such as bathrooms, laundries, and powder rooms. It outlines the minimum requirements for materials, design, and installation to ensure effective moisture protection and long-term durability.
AS 3740 Waterproofing of domestic wet areas
- AS3740 Waterproofing shower walls – Sealing must extend to a minimum of 1800mm above the finished floor level, or 50mm above the shower rose, whichever is higher.
- Shower floors – The entire shower floor must be fully waterproofed.
- Bathroom floors – Waterproofing bathroom floors are required when they are located above ground level.
- Wall-to-floor junctions – All junctions must be sealed with a bond breaker and membrane to prevent cracking and water penetration.
- Baths and spas – Where a bath or spa is installed without a shower, the surrounding areas must still be waterproofed to protect against leaks and water damage.
Installation Requirements
- According to as3740 waterproofing, shower walls must be waterproofed to at least 1800 mm above the finished floor level or 50 mm above the shower rose, whichever is higher.
- Shower floors and other wet area floors must be fully waterproofed, especially in upper-storey or timber-framed constructions.
- Membrane coverage must extend across wall/floor junctions, penetrations, and hob areas.
- Falls to waste must be provided:
- Minimum fall: 1:80
- Maximum fall: 1:50
- Ensures water drains effectively to floor waste without pooling.
Get A Free Quote Today
Protect your home from costly water damage with our wet basement solutions in Gold Coast & Brisbane.
📞 Call us now at 0468 760 750!
Frequently Ask Questions
Expert Wet Room Waterproofing That Meets Code and Exceeds Expectations
How long does it take to waterproof a residential wet area in Queensland?
Usually, our local bathroom waterproofing services take 1-2 days to complete. However, the size of the bathroom, the technique utilised in waterproofing bathroom renovations, and the drying period will all affect the progress of the waterproofing methods.
How do I choose the best local wet area sealing service near me?
Look for a local wet area sealing service near me that is QBCC-licensed, offers clear warranties (6–15 years), and has experience with your specific wet area type. Check their wet room waterproofing reviews and look for their project gallery, ask about membrane types (acrylic vs polyurethane), and confirm they service your suburb—whether you’re in Brisbane, Gold Coast, or Ipswich.
What is the cost of hiring a local wet area sealing service near me?
What are the most effective wet basement walls solutions?
How do I verify that bathroom waterproofing and wet area waterproofing details were done correctly
Can I do my own waterproofing bathroom renovations?
We strongly recommend you hire a licensed or professionals for waterproofing bathroom renovations to ensure the project is completed correctly and in compliance with Australian Standard AS 3740-2010.
Head Office
SUPERIOR WATERPROOFING PTY LTD
Vasey Court, Upper Coomera
4209
ABN 65 633 595 098
info@superiorwaterproofing.com.au
Tel: 0468760750
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1A, 27 Old Pacific Highway, Yatala,
Queensland, 4207 Australia
QBCC LICENSE : 15134140
