Leak Detection in San Antonio, TX
Hidden water leaks, slab leaks and burst pipes across San Antonio and Bexar County. Connect with a local specialist who can find the source before anything is opened up.
Call (888) 239-9523Leak Detection in San Antonio, Texas
San Antonio sits on limestone and clay, and the ground moves enough with wet and dry cycles to stress buried lines. Summers are long and hot, and the occasional hard freeze catches exposed pipes and backflow assemblies off guard. Much of the city was built during rapid growth between the 1970s and 2000s, which means a large share of homes are now at the age where fittings and water heaters begin to fail.
Local water is hard, so scale builds inside pipes and shortens the life of water heaters and fixtures. Slab foundations dominate, and a supply leak beneath one can go unnoticed until the floor feels warm or a baseboard starts to swell. In newer subdivisions on the north and west sides, irrigation systems and failed pressure regulators are frequent causes of high bills.
Leak Services in San Antonio
Hidden Water Leak Detection
Acoustic listening, thermal imaging and moisture meters locate leaks behind walls, under cabinets and beneath floors without exploratory demolition.
Slab Leak Detection
Warm floors, a climbing water bill or a damp slab edge can mean a leak under the foundation. Pressure isolation and thermal imaging pinpoint it before concrete is opened.
Burst Pipe & Emergency Repair
Active leaks get worse by the hour. Call the 24/7 line for shut-off guidance and a connection to the nearest available specialist.
More Leak Services in San Antonio
Main Water Line Leaks
Wet patches in the yard or a meter that never stops moving often point to the service line between the street and the house.
Water line repair →
Pool & Spa Leaks
Losing more than a quarter inch of water a day? Pressure and dye testing separate evaporation from a real plumbing leak.
Pool leak detection →
24/7 Emergency Service
Water damage compounds overnight. The phone line is answered around the clock, including weekends and holidays.
Call (888) 239-9523 →Leak Detection Advice for San Antonio Homeowners
In older neighborhoods near downtown, Southtown and the near West Side, galvanized lines and cast iron drains are still common. In Stone Oak, Alamo Ranch and the northern suburbs, the more likely culprits are irrigation zones, pool equipment and hose bibs. A leak that only appears when the irrigation cycle runs is a yard leak, not a slab leak, and that distinction saves a lot of unnecessary work.
San Antonio Water System customers can use the online portal to compare daily usage. A spike that repeats at the same hour usually points to an irrigation zone or a water softener regenerating. A constant baseline that never drops to zero suggests a supply leak inside the house. Bring that usage history to the call — it shortens the detection visit.
San Antonio Leak Detection Questions
Hard water deposits scale inside pipes and appliances. Over time that narrows flow, raises pressure at joints and shortens water heater life. It is one reason older San Antonio homes see fitting failures and pinhole leaks.
Turn the irrigation controller off for 24 hours and check the meter again. If the meter stops moving, the loss is in the irrigation system. If it keeps moving, the household supply — possibly under the slab — is the source.
Yes. Acoustic listening and thermal imaging are used to locate the leak point first. Cutting is then limited to the repair area rather than a large section of floor.
Water expands as it freezes and splits the pipe or pushes a joint apart. The leak often appears after the thaw. Exposed lines in garages, attics and backflow assemblies are the most vulnerable in San Antonio.
Your ZIP code, the location of the water you can see or hear, whether the meter is moving and a recent bill with usage history. If the leak is active, say so — those calls are prioritized.