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Waterproofing is one of the most critical — and often overlooked — stages of any renovation. A licensed waterproofer applies membranes to wet areas to Australian Standard AS 3740, preventing water ingress that leads to mould, structural damage and costly repairs.
What Waterproofers Do
Licence Requirement
Waterproofing of wet areas is a licensed trade in most Australian states. Work must comply with AS 3740 Waterproofing of Domestic Wet Areas.
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Common Questions About Waterproofers
How much does bathroom waterproofing cost?
Waterproofing a standard shower recess costs $300–$600. A full bathroom costs $600–$1,500. Balcony waterproofing costs $80–$200 per square metre. Remedial waterproofing (repairing an existing failed membrane) typically costs more due to the need to remove and relay tiles.
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