Waterproofing is one of the most critical steps in any bathroom renovation, ensuring protection against water damage, leaks, and mould growth. Without proper waterproofing, moisture can seep into the walls and floors, leading to structural damage, costly repairs, and health hazards.
At Only Bathrooms Gold Coast, we provide certified waterproofing solutions that comply with Australian Standards (AS 3740-2010), ensuring durability and long-term protection. Whether you’re renovating a small ensuite, a luxury bathroom, or a laundry, we ensure every surface is properly sealed.
Waterproofing creates a protective barrier that prevents water from penetrating walls, floors, and substructures.
A waterproofing membrane is a liquid or sheet-based protective layer applied to surfaces before tiling. It forms a seamless, flexible barrier that repels moisture while allowing the structure to breathe.
A high-quality waterproofing membrane is applied to:
All surfaces must be clean, dry, and free of dust before applying waterproofing. Any cracks or gaps are repaired to ensure a smooth base.
Typically, two to three coats of waterproofing are applied, allowing adequate drying time between each layer.
The membrane must fully dry before tiling can begin. Drying time varies depending on the product, temperature, and humidity.
Waterproofing costs depend on bathroom size, complexity, and materials used.
Standard waterproofing From $40 to $80 per square meter
Full bathroom waterproofing Starting at $500+
Luxury bathrooms & additional layers $1,000+
Yes! In Queensland, waterproofing must be carried out by a licensed professional, and a waterproofing certificate is issued upon completion to verify compliance.
Is Failed Waterproofing Covered by Insurance?
No. Waterproofing membranes are designed to be tiled over, not painted. Painting over them compromises their integrity.
Most bathrooms require two to three coats, with drying time between each layer.
Yes, if it has a floor drain or is adjacent to a wet area like a bathroom or kitchen.
With proper installation, waterproofing can last 10+ years, but should be checked for signs of wear over time.
No. Rendering should be applied before waterproofing to ensure a stable surface for tile adhesion.
Most professional waterproofing comes with a 7 to 10-year warranty, depending on the product and service provider.
At Only Bathrooms Gold Coast, we provide expert waterproofing solutions that ensure your renovation is fully compliant, leak-proof, and built to last.
We service Southport, Broadbeach, Burleigh Heads, Robina, Nerang, Helensvale, Coomera, Palm Beach, and other Gold Coast suburbs.
0412 720 336
onlybathrooms.gc@gmail.com
