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Water Damage Strip-Out in Cronulla: A Slow Pipe Leak and a Cracked Roof Tile
By Michael Nguyen | Indoor Environmental Professional (IEP) | IICRC WRT, AMRT, ASD (69486970) | Mould Testing Technician (NAT10913005) | Licensed Builder NSW 392154C (Supervisor, KBL+RENO)
This Cronulla home had water getting in from two places at once: a slow-leaking water pipe behind a wall, and a cracked roof tile letting rain in. Together they kept the wall wet long enough for mould to grow inside it, and the affected materials had to be stripped out.
Two Leaks, One Wet Wall
A slow pipe leak rarely looks like a flood. It wets the framing and the back of the plasterboard a little at a time, often for months, before anything shows on the painted side. A cracked roof tile adds more water every time it rains. When both feed the same area, the materials never get the chance to dry out, and mould grows inside the cavity.
Why a Strip-Out Was Needed
Under the IICRC S520 standard for mould remediation, porous building materials with mould growth, such as plasterboard and insulation, generally can't be cleaned and are removed. Stripping them out also exposes the timber framing so it can be properly cleaned and dried.
What We Found
Once the wall linings came off, mould growth was visible on the timber inside the wall cavity. Mould-affected timber that couldn't be saved was removed, and our technician worked on the exposed framing in full PPE: respirator, hooded coveralls and gloves.
Watch: The Strip-Out in Cronulla
What We Did
Stripped out the mould-affected wall materials
Set up fans and dehumidifiers to dry the framing and structure
Reinstated the wall with new plaster and paint once it was dry
Fix the Water First
Mould removal only lasts if every water source is fixed. On a job like this that means two repairs: a plumber for the leaking pipe and a roofer for the cracked tile. If only one is fixed, the wall gets wet again and the mould comes back.
Signs of a Hidden Leak in Your Home
A musty smell in one room or cupboard
Bubbling or flaking paint, or swollen skirting boards
Stains on ceilings or walls that get worse after rain
A water bill that's higher than usual
What an Inspection Costs
Our mould inspection and quote are free. If you need a professional moisture and mould report, for example for an insurance claim, reports start from $500 + GST. We service Cronulla and the Sutherland Shire as part of our Sutherland Shire mould removal and water damage services.
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About the Author
Michael Nguyen is the director of AAA Mould Removal and leads our water damage and mould remediation work across Sydney. His qualifications include:
Indoor Environmental Professional (IEP) – Testing Water-Damaged Buildings, Australian College of Environmental Studies (RTO 21740), 2026. Includes nationally recognised units NAT11429003 Conduct a comprehensive mould and moisture assessment and NAT11429007 Conduct post remediation verification mould testing (11429NAT Advanced Diploma of Building Biology)
IICRC Water Damage Restoration Technician (WRT)
IICRC Applied Microbial Remediation Technician (AMRT)
IICRC Applied Structural Drying (ASD), IICRC no. 69486970
Mould Testing Technician (NAT10913005)
Licensed Builder NSW 392154C (Supervisor, Kitchen, Bathroom & Laundry and Renovation)
Carpentry Licence
Worried About Mould or Water Damage?
Call AAA Mould Removal on 1300 739 783 or contact us online. We will find the moisture, remove the mould properly and dry your home to IICRC standards.
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