San Diego, CA · Natural gas & propane
Gas Leak Detection in San Diego
Certified combustible gas surveys, pressure decay testing and line isolation on residential and commercial natural gas and propane systems throughout San Diego County.
- Combustible gas indicator surveys
- Pressure decay and line isolation testing
- Buried yard-line and riser locating
- Documentation for utility re-light

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 - 0033Smell gas? Leave the building and call from outside.
If you smell gas, hear hissing or feel lightheaded, evacuate and call 911 and SDG&E first. Our work begins once the property is safe: finding the specific section of line that failed, and proving the rest of the system holds.
Where San Diego gas lines fail
Buried steel yard lines are the usual culprit. Coastal soil hydrology through the western county keeps that steel in permanently damp, chloride-bearing ground, and external corrosion eats through the wall from the outside in. Inland, expansive valley clay in Escondido, El Cajon and Santee shifts seasonally and stresses risers and threaded joints where the line transitions out of the ground. Older interior black-iron branches loosen at unions under the same slab movement that drives our slab leak detection calls.
How we test
The system is isolated at the meter and put under a calibrated pressure decay test to confirm loss. From there each branch is valved off in sequence to bracket the failing run, and a combustible gas indicator plus soil-probe bar-holing pinpoints buried breaks. Every appliance connection, flex line and union is surveyed before we close the ticket.
Reporting
You receive test pressures, hold times, the located failure point and photo documentation — the paperwork utilities and property managers require before a system is re-lit. Commercial kitchens, multi-unit buildings and retail sites are handled through our commercial leak detection program with after-hours scheduling.
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.