Slab leaks hide under your foundation, so they're easy to miss until the damage adds up. Watch for these signs — if you notice one or more, get it checked early.
A slab leak runs 24/7 under the foundation, so a sudden jump in usage with no change in habits is one of the most common first signs.
With all fixtures closed, a faint hissing or running-water sound can mean water escaping from a line beneath the slab.
A leak in a hot-water line under the slab can heat the floor above it — noticeable on tile especially.
Water eroding the soil under a slab can shift the foundation, showing up as new cracks.
Persistent moisture under flooring can create mildew and odor even when you can't see standing water.
A significant leak can drop pressure throughout the home.
Noticing any of these? Early detection keeps a slab leak from becoming a foundation problem.
Turn off every faucet, appliance and the irrigation controller, then find your water meter and look at the small leak indicator or the sweep hand. If it keeps moving after a few minutes with nothing running, water is escaping somewhere. It doesn’t prove the leak is under the slab, but it confirms you have one worth locating.
Shut the cold-water supply valve on top of the water heater and repeat the meter check. If the meter stops, the leak is likely on the hot side, which matches warm floor spots. If it keeps moving, the cold side or the main line is more likely. Mention what you found when you contact us.
Las Vegas homes have a few common sources that mimic a slab leak: a toilet flapper that leaks silently, a pool auto-fill that keeps topping up, and drip irrigation lines in desert landscaping. Put a few drops of food coloring in each toilet tank, check the pool fill valve and pause irrigation before you blame the slab.
Walk the floors barefoot, especially tile in kitchens, bathrooms and hallways, and feel for a section that stays warm. Late at night, when the house is quiet, listen near the water heater and along interior walls for a faint hiss. Both clues help narrow down where to look, and our detection steps take it from there.
A warm floor combined with a moving meter, water coming up through flooring, or new cracks appearing quickly are reasons not to wait. A slab leak runs around the clock, so every day adds to the water bill and the soil washout. Our FAQ covers timing, and our process explains what happens next.