Leaks · 6 min

Signs of a slab leak in a San Diego house

A warm floor, a spinning meter, or the sound of water under the slab are the signs worth a leak detection visit.

What you'll learn

  • How to read the meter with every fixture off
  • Why hot-side leaks warm the floor
  • Why you locate the leak before cutting concrete

Step by step

  1. Walk the house and write down which fixture is affected, and whether the water is hot, cold, or both.
  2. If water is actively leaking, close the angle stop for that fixture. If that stop will not move, close the main.
  3. Take a photo of the water heater label or the leaking fitting before anyone takes it apart.
  4. Call the line and leave the city, the address, and what you already shut off.
  5. Ask the plumber for a written price after they see it. Compare that number with the ranges on our service pages.
  6. Before work starts, look up the contractor license at cslb.ca.gov.
Safety note

If you smell gas, leave the house and call the gas company and 911. Do not hunt for a plumbing fitting.

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