San Diego County · Detection
Locate natural gas and propane leaks quickly for safety and code compliance.
Naomi S., who lives in Mile of Cars Corridor, National City, reached out after noticing a hissing sound near a gas line, meter, or appliance connection. SDG&E serves National City, where gas infrastructure counts among the oldest in San Diego County given the city's 1887 founding. The diagnostic report was enough to move the insurance claim forward without further back-and-forth.
— Naomi S., Mile of Cars Corridor, National City
SDG&E serves National City, where gas infrastructure counts among the oldest in San Diego County given the city's 1887 founding.
Gas service in National City is provided by SDG&E, and any leak confirmed on the utility side of the meter gets reported and coordinated directly with them as part of the repair process.
Gas leaks are a safety priority, not a wait-and-see issue. Our technicians use electronic gas detection equipment and line pressure testing to trace leaks along buried and exposed gas lines, at meter connections, and at appliance shutoff valves. If you smell gas or hear a hiss near a gas line or appliance, treat it as an emergency: leave the area, avoid switches or open flame, and call your gas utility's emergency line before anything else.
We combine handheld electronic sniffers with pressure-decay testing on the line to confirm both the presence of a leak and its approximate location, then coordinate next steps with your utility or a licensed repair contractor.
A rotten-egg or sulfur smell near appliances, meters, or the yardA hissing sound near a gas line, meter, or appliance connectionDead or discolored patches of vegetation in an otherwise healthy lawnHigher than usual gas bills with no added usagePilot lights that won't stay litPhysical damage or corrosion visible on exposed gas pipingFrom Old Town National City, Las Palmas, El Toyon, Mile of Cars Corridor, we handle gas leak detection calls across National City, matching the approach to each property's age, soil, and layout.
Call or request an appointment online. Same-day slots are available across California for active leaks.
A technician arrives with acoustic listening equipment, thermal imaging, and pressure or camera tools matched to your specific leak type.
The leak's exact location is marked and explained to you in plain terms, so nothing gets opened up on a guess.
You receive a written diagnostic report you can hand to your plumber, restoration team, or insurance company, with repair or fix options discussed on the spot.
“The floor in our hallway had a warm spot for weeks. They found the slab leak in under an hour with the listening equipment and marked a tiny area instead of tearing up the whole hallway. Huge relief.”
“Our water bill jumped for two months straight and we couldn't find why. Turned out it was a slow leak behind the water heater. Professional, on time, and explained everything on the spot.”
“Salt air had corroded a fitting outside near the meter box. They traced it with the acoustic equipment without digging up my whole side yard first. Appreciated the straightforward report.”
“Good experience overall, technician was knowledgeable and thorough. Took a little longer than expected but they were clearly being careful about pinpointing the exact spot before marking it.”
“Old Victorian with plaster walls everywhere, so I was dreading this. They used thermal imaging and found the leak behind one wall panel instead of opening up the whole room. Saved us a big repair bill.”
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