Bathroom Waterproofing Brisbane & Gold Coast
Protect your bathroom from hidden leaks, costly damage, and compliance headaches—before they start.
Bathroom Waterproofing Brisbane & Gold Coast
Protect your bathroom from hidden leaks, costly damage, and compliance headaches—before they start.
Bathrooms are one of the most moisture‑prone areas in any property. Without proper waterproofing, water can seep through tiles, grout, and concrete, leading to mould growth, rotting timber, and costly structural damage. At SuperiorWaterproofing, we specialise in QBCC-compliant bathroom waterproofing services in Brisbane and Gold Coast to help protect your place from water damage, ensuring longevity and safety. With over 20 years of combined team experience, our highly skilled and licensed bathroom waterproofers bring a depth of expertise to every project, giving you confidence that your bathroom is protected according to the latest Australian Standards (AS 3740).
Our team is fully committed to meeting all regulations, including compliance with the National Construction Code (NCC), so you can trust your bathroom will remain safe, durable, and compliant for years to come. By working with us as a trusted local bathroom waterproofing professional, you gain peace of mind knowing your project is handled with precision and backed by deep knowledge of regional standards.
Service We Cover
- Bathrooms & Ensuites Waterproofing
- Bathtubs & Showers Waterproofing
- Laundries Waterproofing
- Powder Rooms & Toilet Waterproofing
Trusted by Builders, Loved by Homeowners
- Residential homeowners
- Renovation contractors
- Builders and tilers
- Commercial Property managers
Compliance & Standards
- AS 3740:2021 – Waterproofing of Domestic Wet Areas
- QBCC – Queensland Building & Construction Commission
- Manufacturer guidelines for maximum durability and warranty
Why Choose SuperiorWaterproofing?
When it comes to safeguarding your bathroom from water damage, shortcuts aren’t an option—and neither is guesswork. At SuperiorWaterproofing, we bring deep technical know-how and proven bathroom renovation waterproofing systems to every project, ensuring durable, compliant results. We don’t just roll on membranes—we address moisture issues at their root. Whether it’s rising damp, leaking shower recesses, cracked substrates, or poor fall and drainage, we customise every solution to suit your layout and conditions.
Locally Owned, Licensed & Highly Experienced
- Backed by 20+ years of combined experience, our licensed bathroom waterproofers provide code-compliant bathroom solutions. Proudly serving Brisbane’s north and south.
Strict Compliance with Australian Standards
- Every job strictly adheres to Australian Standards (AS 3740:2006 and AS 4654) and the National Construction Code (NCC), guaranteeing both safety and long-term performance.
Superior Materials & Proven Methods
- We use only high-quality, industry-approved bathroom and toilet waterproofing materials and time-tested techniques to ensure durable, watertight results with minimal risk of future failures.
Transparent, Trustworthy Service
- Trust and integrity are at the core of our business. We conduct thorough consultations, provide clear, upfront waterproofing quotation, and ensure no hidden fees.
Efficiency with Quality & Warranty
- We pride ourselves on delivering fast, dependable bathroom waterproofing services near you. Our workmanship is backed by warranties, ensuring your investment is well-protected.
COMPLIANCES
Where Compliance Meets Craftsmanship
Dealing with a compliant waterproofer ensures that your property is protected with work that meets building codes, uses certified materials, and follows industry standards, reducing the risk of leaks, mold, and structural damage. It saves you money in the long run by preventing costly repairs, provides peace of mind through warranties and guarantees, and shields you from potential legal or insurance issues that can arise from non-compliant work.
Why Bathroom &Toilet Waterproofing Matters?
Water can penetrate walls, floors, and ceilings, leading to structural damage over time. Waterproofing prevents this by creating a barrier that keeps moisture at bay.
Controls Mold and Mildew Growth
Due to high humidity, bathrooms are prone to mould and mildew growth. Proper waterproofing of bathrooms and toilets helps control moisture levels, keeping these health hazards at bay and ensuring a healthier living environment.
Enhances Property Value
A well-maintained, waterproof bathroom floor & walls can enhance your property’s value. Buyers or property investors are more likely to invest in a home without underlying water damage issues, making investment in Brisbane bathroom waterproofing service near you is a wise choice.
Ensures Safety
Water damage can weaken your bathroom’s structural integrity, leading to potential accidents. Waterproofing of bathrooms and toilets ensures a safer environment.
Showcase of Our Waterproofing Projects
From Leaks to Lasting Protection – See Our Waterproofing Work in Brisbane & Gold Coast
Get A Free Quote Today
Protect your home from costly water damage with licensed bathroom waterproofing Brisbane & Gold Coast.
📞 Call us now at 0468 760 750!
Our Bathroom Waterproofing Process
At SuperiorWaterproofing, we follow a proven waterproofing steps process to make sure your bathroom is fully protected from water damage. Every stage is carried out by bathroom waterproofing experts in accordance with AS 3740:2021 – Waterproofing of Domestic Wet Areas and the National Construction Code (NCC).
Inspection & Preparation
Before starting waterproofing bathroom floor or wall, we begin with a thorough inspection of the bathroom substrate to identify cracks, gaps, or problem areas. Surfaces are cleaned, repaired, and primed.
Crack Repair and Sealing Joints
All wall/floor junctions, corners, and pipe penetrations are sealed with silicone or sealant. Bond breakers and reinforcing fabric are applied where needed to prevent membrane failure caused by movement. Next, we seal structural gaps in waterproofing retaining walls using epoxy or polyurethane injection.
Application of Bathroom Wall Waterproofing Membrane
A flexible, liquid-applied membrane is installed. Key coverage areas include: shower recess walls (minimum 1800mm high), Entire bathroom floor area, door thresholds and wall upturns, & a round all drains, wastes, and fixtures.
Second Coat & Full Coverage
A second membrane coat is applied to ensure complete protection. Drying times are strictly observed between coats as per manufacturer guidelines.
Final Inspection & Certification
Once the membrane has fully cured, we perform a quality inspection to check for uniform coverage. A compliance certificate and warranty are provided, giving you peace of mind that your bathroom wall waterproofing meets all standards.
Testimonials
What Our Happy Customers Are Saying
Call us now: 0468760750
I had a persistent leak in my bathroom, and Shawn and his waterproofing team 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 for anyone dealing with basement leaks!
Excellent customer service and perfect follow-through on every job. This Gold Coast bathroom waterproofing contractor is reliable, professional, and consistently delivers on time. They did an outstanding job waterproofing a bathroom floor & walls, and the results have held up beautifully. If you’re dealing with water seepage or need a fast turnaround on bathroom protection, I highly recommend getting in touch with these guys.
Do You Need Licensed Bathroom Waterproofing Contractor?
Call Us 0468 760 750 Now!
- Get obligation-free quotation from expert bathroom waterproofer, feel free to email us at admin@superiorwaterproofing.com.au
Signs You Need to Waterproof Bathroom Walls & Floors of Your House or Business
Here are some clear signs that it’s time to waterproof whole bathroom floor and walls:
Visible Water Stains
If you see brown or yellow stains on ceilings or walls, that indicates water infiltration. It means that moisture has penetrated your bathroom’s surfaces. It’s a clear sign you may need bathroom waterproofing close by to prevent further damage.
Peeling Paint or Wallpaper
Paint or wallpaper can bubble when there is excess moisture underneath them. This can result in peeling, and therefore, local bathroom waterproofing in your area is now needed.
Musty Odours
Persistent musty smells indicate mould growth, which thrives in damp environments, signalling that you need an expert in waterproofing bathroom renovations, including the shower and toilet areas.
Cracked or Missing Grout
Damaged grout can allow water to seep behind tiles, leading to hidden water damage that can worsen over time.
Australian Standards for Bathroom Waterproofing
Key Standard: AS 3740:2021 – Bathroom waterproofing details on wet areas.
This bathroom floor & wall waterproofing standard applies to all internal wet areas including laundries, and toilets. How to waterproof a bathroom in Australia? Here are the basic requirements: the surfaces are first cleaned and primed, cracks & junctions are sealed, and at least two coats of quality waterproofing membrane are applied—extending up walls and around fixtures—to meet AS 3740.
Waterproofing Bathroom Regulations:
- Waterproofing shower walls – Waterproofing 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.
Gradient Requirements:
- Membranes and surface finishes – All waterproofing membranes and finished surfaces must be properly graded to direct water towards the floor waste.
- Minimum fall – A fall of 1:80 is required to ensure adequate drainage.
- Maximum fall – The slope must not exceed 1:50, preventing uneven surfaces or safety hazards.
Building Code of Australia (BCA) & NCC Part 10.2
The NCC reinforces AS 3740 and adds further detail on:
- Substrate preparation: The surface must be clean, dry, and stable.
- Membrane installation: Follow manufacturer specifications
- Drainage connections: Drainage points must be secure
- Junction, Flashings and penetrations: Sealed with flashings
- Enclosed showers required to waterproof entire bathroom floor while unenclosed showers demand extended waterproofing.
Get A Free Quote Today
Protect your home from costly water damage with licensed bathroom waterproofing Gold Coast & Brisbane.
📞 Call us now at 0468 760 750!
Frequently Ask Questions
Didn’t find the answer you need? We’re happy to help—send us your question.
What is a Form 43, and why do I need it?
How long does it take to waterproof a bathroom in Brisbane or Gold Coast?
Most internal jobs are a 2-day process.
Day 1 typically involves surface preparation, priming, and the first coat.
Day 2 includes the second coat and detailing.
You generally must wait at least 24 hours after the final coat before tiling can begin.
Can I DIY my bathroom waterproofing?
No. Incorrect application is a leading cause of building defects in QLD, and most insurance companies will void claims for water damage if a compliance certificate from a licensed pro isn’t provided.
In Queensland, bathroom waterproofing is classed as “restricted building work.”
That means it must be carried out by a QBCC-licensed waterproofing contractor.
Even if:
You’re the homeowner
You’re renovating your own house
You’re “handy” or following manufacturer instructions
👉 You still can’t legally DIY it.
Why QLD is strict about it
- Bathrooms are considered high-risk wet areas
- Failures cause major structural damage, mould, and disputes
- Waterproofing must comply with AS 3740 and QBCC requirements
- Licensed contractors must issue a Form 43 / warranty (this protects owners and future buyers)
- What can you DIY?
You can legally do:
- Demolition
- Installing sheeting (with correct specs)
- Tiling after waterproofing is completed and signed off
But:
❌ You cannot apply the membrane
❌ You cannot sign off or certify the waterproofing
What happens if you DIY anyway?
Risks include:
- Insurance claims denied
- Sale issues (building inspections pick it up)
- Builder / QBCC disputes
- Having to rip everything out and redo it
Common workaround (legal)
Many renovators do this:
- DIY demo & prep
- Bring in a licensed waterproofer
- Get membrane + compliance done
- DIY tiling afterwards
How much does waterproofing a bathroom cost in Brisbane or Gold Coast?
Bathroom waterproofing costs for a standard-sized area may cost $600-$1000+GST, depending on the waterproofing method and accessories chosen, as well as the difficulty of the project. The best course of action is to request a quotation from a licensed bathroom waterproofing contractors.
Do I need a licensed waterproofer in Brisbane?
How many coats are required?
How long does bathroom waterproofing last?
Our manufacturers provide a 10-year product warranty while Superior provides a 7-year workmanship warranty. With proper installation and maintenance (like replacing silicone every few years), a quality membrane can last 20+ years.
Is waterproofing a bathroom wall and floor mandatory under Australian law?
Yes, waterproofing of bathrooms is required by law, and the Building Code of Australia requires waterproofing in all domestic wet areas. Non-compliance can void warranties and lead to costly bathroom repairs.
Do you need to waterproof entire bathroom floor & walls or just the shower area?
According to Australian Standard AS3740-2010, the shower, bath, walls, and floor in the bathroom must all be waterproofed.
For urgent bathroom waterproofing service near you, message or call 0468 760 750 as we are open for inquiries anytime!
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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SUPERIOR WATERPROOFING PTY LTD
Unit 1/27 Old Pacific Highway
Yatala, QLD 4207
Australia
ABN 65 633 595 098
QBCC license : 15134140
Tel: 046 8760750
