Slab leak detection in South Orange County, CA

Most slab leaks come from aging or corroded copper pipes, poor original installation, shifting soil, or abrasion where a pipe rubs against concrete or rebar over time.

Acoustic listening equipment detects the sound of pressurized water escaping underground, and thermal imaging can reveal temperature differences from hot water leaks — together narrowing the leak to a small, specific area.

A single, accessible leak is often a candidate for a spot repair. Repeated leaks or aging copper throughout the home may make a reroute or full repipe the smarter long-term option — something we discuss after diagnosis, never before.

A slab leak is an underground leak, but not every underground leak sits under the slab. Supply lines can also run beneath the yard, driveway, or patio. We pressure test and isolate to confirm which line is losing water, then use acoustic listening and line tracing to determine whether the leak is under the foundation or outside it. That distinction changes both the repair and the cost.

Yes. Acoustic listening works through finished flooring because it tracks the sound of pressurized water escaping the pipe rather than looking at the surface. Thermal imaging is most useful on hot water leaks and can be limited by thick flooring, so acoustic detection usually leads. The goal is to narrow the leak to a small area before any flooring or concrete is opened.

Most detection visits take one to a few hours, depending on the size of the home and how quickly the source is isolated. We go over your options on the spot. A spot repair is often done the same day or the next, a reroute usually takes one to two days, and a whole-house repipe a few days. More in how long slab leak repair takes.

Not always. Acoustic detection narrows the leak to a small spot, so any opening is as small as possible. A reroute often avoids opening the floor at all by running a new line through the attic or walls. If a spot repair under tile or hardwood is the best option, you will know where the access point is and roughly how big it will be before you decide.

Shut off the main valve right away if water is coming up through the floor, the meter is spinning fast, or a warm spot is spreading. For a suspected hot water leak, closing the cold-water valve on top of a tank water heater stops flow to the hot side while the rest of the house keeps water. If the meter is only creeping, you usually do not need to go without water, but get it diagnosed soon. See what to do first.

The repaired section itself should not be the problem. But copper tends to corrode throughout a system, so if one section of an older line has failed, other sections of the same age often are not far behind. Two or more leaks within a few years is a common point to consider a reroute or repipe. New PEX greatly lowers the risk, though no plumbing system is leak-proof forever. More in why some homes get repeat slab leaks.

Coverage varies by policy and is never something we can promise. Many policies handle the resulting water damage and access to the pipe, while the pipe repair itself is sometimes treated as a maintenance item. A documented diagnosis with the affected line, location, and findings typically makes the claim conversation much easier. See does insurance cover slab leaks for more detail.