

Leak Detection Santa Ana is a residential leak detection and repair company working in Santa Ana and central Orange County. We find hidden water leaks under a concrete slab, behind a wall or ceiling, in the main water line, at the water heater, in a pool, or in a sewer line. The equipment is non-invasive. It puts the leak on the floor plan before anyone opens a wall or breaks a floor. This is a leak detection company built around one job rather than a general plumber who handles leaks occasionally: found precisely, then repaired.
Acoustic listening equipment, thermal imaging, tracer gas, and video camera inspection tell us where a leak is before any repair begins, and the same team that finds it fixes it, start to finish. Detection is a flat-rate $150 to $500 visit, credited toward the repair if you move forward, and every repair we complete carries a 2-year workmanship warranty.
Scheduled visits and quotes run Monday through Saturday, 7am to 6pm, and we keep a genuine 24/7 emergency line for burst pipes, active slab leaks, and flooding, answered in English and Spanish.

We find and fix slab leaks, whole-house repipes, water heater leaks, sewer line breaks, pool and spa leaks, gas leaks, irrigation and sprinkler leaks, and concealed leaks behind walls and ceilings. Every service below starts with professional leak detection equipment locating the exact source, and ends with a completed repair rather than a hand-off to a separate contractor.








Four steps, in this order, on every job. The point of the sequence is that nothing gets opened until we know what is behind it.
The equipment does not change with the building. What changes is access, who has to be told, and when the work can happen. We are the plumbing leak detection specialist for four kinds of property across Santa Ana and central Orange County: houses, occupied commercial buildings, multi-unit properties where the pipe and the damage belong to different people, and homes changing hands.
Residential work is most of what we do. Everything else is the same detection, scheduled differently and documented for whoever has to sign off on it.
Home leak detection for houses, condos and townhouses. Flat-rate detection credited toward the repair, with the same technician finding the leak and fixing it.
Retail, offices, restaurants, medical suites and light industrial. Occupied buildings worked before opening or after close, quoted per job.
Water in one unit, pipe in another. The location plus the documentation a board or a manager can forward without rewriting it.
Sewer camera and hydrostatic testing before a sale closes. Pass or fail in writing, for the file.
No single tool finds every leak. A hot-water slab leak shows on a thermal camera within minutes and is nearly silent on a ground microphone. A cracked sewer hub is invisible to both and obvious on a video camera. So a professional leak detection visit is a sequence of methods, worked through in the order the symptoms suggest, and the flat rate covers whichever ones the job turns out to need. Every one of them is non-invasive.
We serve Santa Ana first, including the neighborhoods of Floral Park, West Floral Park, Historic French Park, Washington Square, Wilshire Square, Fisher Park, Logan, Santa Anita, and Park Santiago, and we’re expanding service into central Orange County: Garden Grove, Orange, Tustin, Costa Mesa, Fountain Valley, and Irvine.
We are a local leak detection company working out of Santa Ana, not a national dispatch desk routing your call to whoever is free.
We serve Santa Ana homeowners in English and Spanish, from the first call through the finished repair. A large share of Santa Ana households speak Spanish at home, and our bilingual team means a leak problem doesn't also mean navigating it in a second language.

“A homeowner with a suspected slab leak deserves someone whose entire job is finding it precisely, the first time, not a side task for a plumber juggling ten other jobs that week.”
David Herrera founded Leak Detection Santa Ana after more than 15 years of hands-on plumbing and leak-detection work across Orange County, before this company existed. He leads a team of specialists: Miguel Torres on detection methods, Carlos Mendez on repair and repipe work (and bilingual service), and Kevin Nguyen on inspection and documentation, with Ana Reyes coordinating scheduling and dispatch.
A fully-equipped detection van with acoustic, thermal, and camera gear: we find the leak on-site, then fix it.

Santa Ana and central Orange County, including Garden Grove, Orange, Tustin, Costa Mesa, Fountain Valley, and Irvine. See our full service area list →
Yes. We serve homeowners in English and Spanish, from the first call through the finished repair.
Yes. Our 24/7 emergency line is answered day or night, in English or Spanish, for a burst pipe, an active slab leak, or flooding, and we can walk you through shutting off your water while a technician is dispatched. Scheduled visits and quotes run Monday through Saturday, 7am to 6pm; non-urgent after-hours messages are returned the next morning.
You don’t pay the detection fee when we can’t locate the leak.
No. We detect and repair leaks from an existing water heater; we don’t install or swap water heater units.
Yes. We’re a licensed California contractor, and we back every job with a no-find-no-fee detection guarantee and a 2-year workmanship warranty on every repair, from a specialist team with hands-on leak-detection experience.
Detection is a flat rate of $150 to $500, depending on the type of leak and how much of the property has to be covered. That fee is credited toward the repair if you go ahead with us. Flat rather than hourly, on purpose: it is what makes affordable leak detection possible on the hard jobs, because an hourly rate charges most for the leak that took longest to find. Repair pricing is quoted in writing before any work starts. See our full pricing →
About an hour for a straightforward slab leak with clear symptoms. Two to three hours where pressure testing is involved. A sewer camera inspection is usually under an hour, and a shower pan flood test takes about half a day, because the waiting is the test. What happens on a visit →
Yes. That is what non-invasive detection means. Acoustic listening picks up the sound of water escaping a pressurized line. Thermal imaging reads the temperature a leak creates through the surface above it. Tracer gas confirms the exact spot, and a video camera sees inside sewer and drain lines. A floor or a wall is opened once the leak has been located, and not before. How non-invasive detection works →
The usual signs: a water bill that jumped with no change in how you use water, a warm patch on the floor, running water heard with every fixture off, a wet spot in the yard that never dries, a musty smell in one room. The meter test settles it. Turn off every fixture, watch the leak indicator on the meter, and if it still moves, water is going somewhere. Run the meter test →
Yes. Main water line leaks, underground supply lines between the meter and the house, irrigation and sprinkler lines, and sewer laterals are all located the same way, with line locating equipment and acoustic listening rather than exploratory digging. Main water line repair → or pipe and line locating →
Yes. Retail, offices, restaurants, medical suites, multi-family and light industrial across Santa Ana and central Orange County. Detection in an occupied building is normally scheduled before opening or after close, and larger buildings are quoted per job rather than from the residential bands. Commercial leak detection →
Both, in the sense that matters. We are a licensed California plumbing contractor, which is what lets us carry out the repair rather than hand you to someone else for it. What we are not is a general plumber who finds leaks between other jobs. Detection is the whole practice here: the equipment, the training and the flat-rate visit are all built around it, and the technician who locates the leak is the one who repairs it.
Scheduled visits and quotes Monday–Saturday, 7am–6pm. Plus a genuine 24/7 emergency line for burst pipes, active slab leaks, and flooding, answered in English and Spanish.