Maintenance Guides / Plumbing & Water

Listen for slab leaks

Difficulty: easyTime: 20 mins

Why it matters

Hot water lines in slab corrode and leak silently; early detection saves $5-15k.

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How to do it

  • 1

    Turn off water main and ensure all fixtures off.

  • 2

    Wait 5 minutes for system to stabilize.

  • 3

    Listen near foundation in hot-water-line areas.

  • 4

    Listen for hissing, rushing, trickling sounds.

  • 5

    Check water meter (should not spin).

  • 6

    If hissing or meter moves, call slab leak specialist.