Complex Leak Investigation at Melbourne Shopping Centre

Previous investigations had failed because assumptions led investigators away from the actual source. Our team — Matthew Robertson, Bailey Fry, and Ben Walker — conducted a comprehensive initial assessment, followed by strategic investigation cuts that traced horizontal water movement through wall cavities from an adjacent tenancy’s back-of-house kitchen.

The root cause: a cleaner’s sink with a faulty cold water tap spindle containing an incorrect rubber washer, causing continuous slow leakage that travelled horizontally through blockwork to appear in a completely different area.

The repair itself was straightforward — replacing the incorrect rubber washer with the correct component — but the disciplined investigation methodology made the difference. Thorough testing, coordination with plastering contractors, and ongoing monitoring confirmed the leak was permanently resolved.

Key Outcomes: Leak permanently stopped after three months of disruption, investigation completed within 24 hours, minimal business impact through early-morning scheduling, and affected tenants’ operations fully restored.