Not every leak announces itself with a puddle. Many start behind walls, under floors, or beneath a slab, where they can run for weeks before causing obvious damage. Catching them early saves water, money, and repairs.
Watch for these signs
- A rising water bill. If your usage climbs without a change in habits, a leak is a prime suspect.
- A meter that keeps moving. With every fixture off, note the reading, wait, and check again. Movement means water is escaping somewhere.
- Damp or discolored spots. Stains on walls, ceilings, or floors often trace back to a nearby leak.
- Musty or earthy odors. Persistent damp smells can indicate hidden moisture.
- Warm spots on the floor. A warm patch can signal a hot-water line leaking under a slab.
- Sound of running water. If you hear water when nothing is on, it is worth investigating.
- Cracking or shifting flooring. Moisture under a slab can lift or crack hard flooring.
What to do next
If you suspect a leak, note what you have observed and avoid ignoring it, since water damage tends to worsen over time. Professional leak detection can pinpoint the source with minimal disruption, and a slab leak may need special care.
Leaks worth acting on quickly
Any leak near electrical outlets, in a ceiling, or under a slab deserves prompt attention. When in doubt, call (800) 390-6351 and describe what you are seeing.
Questions about your own plumbing? Contact us or call (800) 390-6351. This article is general guidance, not a diagnosis.