Mon–Sat 7am–6pm · 24/7 Emergency Line
Serving Santa Ana & Central OC
SERVING SANTA ANA & CENTRAL ORANGE COUNTY

Professional Leak Detection & Repair Services in Santa Ana, CA

FIND IT. FIX IT. PROTECT IT.

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.

Leak Detection Santa Ana technicians who find and repair hidden water leaks in Santa Ana, CA
Our Services

What We Find & Fix

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.

Slab leak detection under a home's concrete foundation in Santa Ana

Slab Leak Detection & Repair

Pinpointing and repairing leaks under your home’s concrete foundation without demolition. A slab leak is a break or slow failure in a water or drain line buried under your home’s concrete foundation.
Slab leak detection and repair in Santa Ana
Whole-house repipe with PEX and copper supply lines

Whole-House Repipe

Replacing aging galvanized or copper supply lines with new PEX or copper, planned around your home’s age and layout.
Whole-house repipe in Santa Ana
Water heater leak detection and repair at the tank and connections

Water Heater Leak Detection

Finding and repairing a leak at or around your water heater (we detect and repair leaks; we don’t install or swap water heater units).
Water heater leak detection
Sewer line camera inspection running a scope into a cleanout

Sewer Line Camera Inspection

A video camera locates cracks, root intrusion, or breaks in your sewer line before any digging is considered.
Sewer line camera inspection
Pool and spa leak detection at the pool equipment pad

Pool & Spa Leak Detection

Locating leaks in pool and spa plumbing without draining or excavating the whole system.
Pool and spa leak detection
Gas leak detection with a handheld gas detector at a residential gas meter

Gas Line Leak Detection

Locating a gas leak using non-invasive methods so a repair can be scheduled safely.
Gas line leak detection
Irrigation and sprinkler leak detection in a residential yard

Irrigation & Sprinkler Leak Detection

Finding the real cause behind a wet or green patch in your yard.
Irrigation and sprinkler leak detection
Concealed wall and ceiling leak detection with a thermal camera and moisture meter

Concealed Wall & Ceiling Leak Detection

Finding a leak behind a wall or ceiling without opening it up first.
Concealed wall and ceiling leak detection
View All Our Services
Every leak we find & fix, in one place
Every one of these starts the same way: find it precisely, then fix it, not the other way around.
The Process

How Leak Detection Works in Santa Ana

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.

1
You tell us what you are seeing
A water bill that jumped, a warm patch of floor, running water with everything off, a wet spot in the yard. Scheduled visits and quotes run Monday through Saturday, 7am to 6pm. The 24/7 emergency line is answered day or night, in English or Spanish, for a burst pipe or an active slab leak.
2
We rule things out before we search
A meter or pressure test establishes whether the pressurized supply is losing water at all. That single check either confirms the problem or eliminates half the possibilities in five minutes, before any equipment comes off the van.
3
We locate the leak without opening anything
Acoustic listening, thermal imaging, tracer gas and video camera inspection narrow the leak to a spot we can mark on your floor or wall. About an hour for a straightforward slab leak, two to three hours where pressure testing is involved.
4
You get the price in writing, then we repair it
The repair is quoted before it starts, and the same team that found the leak does the work. Often same day for an accessible supply line, a fixture or a valve; larger jobs such as a repipe are scheduled properly instead of rushed.
Looking for leak detection near you? We work across Santa Ana and central Orange County, including Garden Grove, Orange, Tustin, Costa Mesa, Fountain Valley, Irvine, Westminster, Anaheim, Huntington Beach and Newport Beach. Leak detection near me or see the full service area list.
WHO WE SERVE

Who We Serve

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.

Residential Leak Detection

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.

Commercial Leak Detection

Retail, offices, restaurants, medical suites and light industrial. Occupied buildings worked before opening or after close, quoted per job.

Multi-Family, HOA & Property Managers

Water in one unit, pipe in another. The location plus the documentation a board or a manager can forward without rewriting it.

Real Estate, Escrow & Pre-Purchase

Sewer camera and hydrostatic testing before a sale closes. Pass or fail in writing, for the file.

The Equipment

Leak Detection Methods and Technology We Use

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.

Acoustic Leak Detection

Acoustic leak detection is the first tool on most pressurized water lines. A ground microphone and a set of listening discs pick up the sound of water forcing its way out of a pipe, which travels further through concrete than most people expect. Walking a grid across a slab and comparing what each position sounds like narrows a leak to a few square feet. It works best on a line still under pressure and hardly at all on a drain, which is why the pressure test comes first.
How non-invasive detection works

Infrared and Thermal Imaging Leak Detection

A thermal imaging camera reads surface temperature, not water. A hot-water line leaking under a slab warms the concrete above it, and that warm shape shows on the camera long before anything looks wet. Infrared leak detection is the fastest way to confirm a warm spot on the floor, and it also reads the cold left by evaporating moisture behind a wall or ceiling. It sees heat rather than pipes, so it narrows the area and the acoustic gear finishes the job.
Warm spot on the floor

Tracer Gas Leak Detection

When a line is quiet and thermal shows nothing, tracer gas settles it. The line is drained and charged with a safe hydrogen and nitrogen mix, the smallest molecule available, which escapes through the leak and rises to the surface. A detector then walks the same grid and finds the exact point of escape. This is the method for the leaks the other two disagree about, and for plastic pipe, which carries sound poorly.
Mystery leak detection

Camera Leak Detection and Sewer Inspection

A push camera goes in through a cleanout and puts the inside of a sewer or drain line on screen. Camera leak detection is the only way to see a cracked hub, an offset joint, root intrusion or a low spot holding water, because none of those makes a sound and none of them shows on a thermal camera. The locator on the camera head marks depth and position from above ground, so a repair can be planned without opening the line to find it.
Sewer camera inspection

Pressure and Hydrostatic Testing

Testing is not detection. It is the question that comes before it. Isolating a section and putting it under pressure establishes whether that section is losing water at all, in writing, pass or fail. A hydrostatic test does the same for the drain and sewer side, which acoustic gear cannot hear. It is usually what an escrow file or a pre-purchase leak detection inspection needs, and it stops a search that had no reason to start.
Hydrostatic testing

Pipe and Line Locating, Outside and Underground

Outside leak detection starts with knowing where the pipe actually runs. A transmitter clipped to the line and a receiver above ground trace a buried water service from the meter to the house, an irrigation main across a yard, or a sewer lateral out to the property line, with depth. Underground leak detection without that step is digging on a guess. With it, the search area is a strip a few feet wide instead of a whole yard.
Pipe and line locating
Which of these a visit uses is decided on site, by what the symptoms rule out. That is what comprehensive leak detection means here: the method is chosen by the evidence, not sold in advance. The flat rate does not change with it.
Think you have a leak? We find it before we fix it.
Get a Leak Checked
Our Guarantees

Standing Company Policy, Not a Limited-Time Offer

01
No-Find-No-Fee Detection
A no-find-no-fee guarantee is a flat-rate detection charge that isn’t billed when our equipment can’t locate the leak. You don’t pay the detection fee when we can’t find it. The detection fee is credited toward the repair if you move forward, not something we waive out of generosity.
02
2-Year Workmanship Warranty
Every repair we complete is backed by a 2-year workmanship warranty. The workmanship warranty covers the repair we perform for two years; it doesn’t extend to unrelated, pre-existing plumbing issues. These are standing company policy, not a limited-time offer.
03
Licensed & Insured
We’re a licensed and insured California plumbing contractor. Leak Detection Santa Ana was founded in 2026 by David Herrera, who has spent over 15 years finding leaks across Orange County, and the crew works in English and Spanish.
Before you hire any leak detection contractor, including us: how to choose the best leak detection company, and the questions worth asking on the phone.
SERVICE AREA

Serving Santa Ana & Central Orange County

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.

Bilingual Service (English & Spanish)

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.

The Leak Detection Santa Ana specialist team
Our Leak Detection Specialists
Why We Exist

“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.”

Founder, on 15+ years of Orange County leak-detection work
Our Specialists

Meet the Team

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.

Serving Santa Ana & OC

The Leak Detection Experts Who Come to Your House

A fully-equipped detection van with acoustic, thermal, and camera gear: we find the leak on-site, then fix it.

Leak Detection Santa Ana branded service van
FREQUENTLY ASKED

Questions Homeowners Ask Us

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.

Think You Have a Leak? Let’s Find 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.