San Diego, CA · Water lines
Water Leak Detection in San Diego
Pressurized supply lines, service laterals and irrigation mains located to the square foot — inside walls, under slabs and out in the yard.
- Acoustic correlation on live lines
- Thermal imaging through finished floors
- Tracer gas for silent, low-volume leaks
- Meter and pressure-decay verification

Non-invasive locating
Four technologies, one square foot of certainty before anyone touches your slab.
- Acoustic
- Correlated listening on pressurized lines
- Thermal
- Hot-side imaging through finished floors
- Tracer gas
- Inert helium/nitrogen for silent leaks
- Pressure
- Zone isolation to confirm the failing loop
Dispatch & scheduling
(619) 923 - 0033How we find a hidden water leak in San Diego
A water leak in San Diego rarely shows up where it starts. Coastal soil hydrology through Oceanside, Carlsbad, Encinitas and the western bayfront moves escaping water sideways along sandy overburden and sandstone bedding, so the stain on a baseboard can sit twenty feet from the break. Inland, expansive valley clay in Escondido, El Cajon and Santee absorbs the water entirely until pressure finally forces it up through a control joint.
The sequence
We shut the house down at the meter and watch for movement, isolate hot from cold and irrigation from domestic, then put a correlator on the failing loop. Thermal imaging picks up hot-side breaks through tile and hardwood without lifting anything. Where the leak is too slow or too quiet to hear, inert tracer gas is introduced into the drained line and surfaced with a hydrocarbon sniffer.
What you get
A marked location, photo documentation, pressure readings, and a plain statement of what failed and why. Take that to your own plumber or let us open, repair and restore. If the failure is under concrete, keep reading on our slab leak detection page, and see the cost breakdown before you commit to anything.
What we locate
Leak detection services in San Diego
Every call starts with electronic locating — acoustic, thermal, tracer gas and pressure isolation — so the repair in San Diego is surgical instead of exploratory.

Water Leak Detection
Acoustic correlation, thermal imaging and tracer gas to pinpoint pressurized water line failures inside San Diego walls, ceilings and service laterals — no exploratory demolition.
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Pool Leak Detection
Dye testing, pressure isolation and hydrophone listening on pools, spas and plumbing loops losing water to dry Southern California evaporation-plus-leak conditions.
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Slab Leak Detection
Tracking hidden line failures beneath San Diego foundations — hot-side pinholes, copper corrosion and post-tension slab breaches located to the square foot before a single cut is made.
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Underground Utility Locating
Electromagnetic locating and ground penetrating radar to map water, sewer, gas and conduit runs across coastal fill and decomposed granite before you excavate.
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Gas Leak Detection
Certified combustible gas surveys, pressure decay testing and line isolation on residential and commercial natural gas and propane systems throughout San Diego County.
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Commercial Leak Detection
Multi-unit, hospitality, retail and industrial leak investigation with after-hours scheduling, documented findings and reports your insurer and property manager will accept.
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Leak detection questions San Diego homeowners ask
No call-center scripts. If your question isn't here, call (619) 923 - 0033.
Describe what you're seeing
Warm floor? Spiking bill? Sound of water with everything off?
Tell us the symptoms and we'll tell you what it usually means in San Diego — and what locating it will take. Most calls are scheduled same day.