A sudden spike in your bill often points to an underground water leak. You can spot clues: the water meter turning when all fixtures are off, damp or sunken spots in the yard, an isolated strip of extra‑green grass, lower water pressure, a faint hiss from pipes, warm areas on a slab floor, hairline cracks in concrete, or a pool auto‑fill that seems to run all the time.
Start with the meter. Turn off faucets, showers, ice makers, and irrigation timers, then look at the leak indicator on the water meter. If it moves, water is leaving the system. If you close the house shutoff valve and it still moves, the leak is likely between the meter and the home or in a buried outdoor line.
In Scottsdale’s dry soil, underground leaks can disappear into the ground without obvious puddles. Check for soft soil that doesn’t dry, small sinkholes, or water in the meter box. You might see a damp line along a trench where your water service was buried, or water seeping at the curb during dry weather.
Under a slab, hot‑water leaks often show as a warm spot under bare feet, floors that cup or buckle, or baseboards that swell. You may hear faint running water with everything off. If your water heater refills frequently or never seems to rest, a hidden hot‑line leak may be feeding it.
Pools can drive a bill up if an underground pool line leaks. Watch for a faster‑than‑normal drop in water level, frequent need to add water, or an auto‑fill valve that cycles constantly even on cooler days. Damp soil around the pool equipment pad or along buried lines is another hint.
Rule out easy indoor causes while you check. A running toilet or dripping faucet can add up fast; if you shut the house valve and the meter stops, reopen it and listen for toilets refilling or look for movement in the bowl. If those are quiet and the meter still moves with fixtures off, focus on an underground leak.
Don’t dig blindly. Underground water line leaks can undermine soil, nick other utilities, and waste time and money. Precise underground water leak detection uses acoustic listening, pressure testing, and thermal tools to pinpoint the break under soil or slab so repair is targeted.
Scottsdale Leak Detection Pros finds and fixes these problems. We handle underground water leak detection, water line leak repair, slab leak detection and repair, pool leak detection and pool leak repair, pipe leak detection, and underground leak repair. Call us to schedule. We will give you an arrival window when you call and explain the plan before work starts.
