Gas Leak Detection & Repair in the Las Vegas Valley

Gas leak detection is the process of confirming whether a natural gas system is leaking and pinpointing exactly where. We use electronic combustible gas detectors along the piping and at every fitting, and a pressure test that shows whether the system holds pressure over time. Repair means replacing the failed fitting, connector, valve or section of pipe with code-approved materials, then testing the system again before service is restored.

Natural gas has no smell of its own. The utility adds an odorant, usually described as rotten eggs or sulfur, so that even a faint trace gets noticed. That is why a smell that comes and goes still matters. Leaks in Las Vegas Valley homes most often start at threaded fittings that have loosened over the years, at old flexible appliance connectors, at worn shut-off valves, or on a buried yard line where the coating has failed. Caliche, the cemented calcium-carbonate hardpan found across much of the valley, is abrasive and can wear through the protective wrap on a line that runs against it.

Once Southwest Gas has made the area safe, we test the system rather than guess. Electronic detectors sweep each joint and connector, and a pressure test tells us whether a leak sits somewhere we cannot see, inside a wall or underground. When we find it, we replace the failed part with approved materials, retest, and only then relight appliances. Our trucks carry common repair parts, so many leaks are repaired in one visit.

If the leak traces back to an undersized or badly routed line, Gas Line Rerouting & Upsizing may be the right long-term fix, and a Gas Safety Inspection is worth considering on an older system. Active Plumbing is a fourth-generation family business serving the valley since 1991. Call (702) 438-3357 any time, day or night.

Threaded fittings that have loosened or corroded over the years. Old flexible appliance connectors that have cracked or kinked. Worn shut-off valves at a range, dryer or water heater. A buried yard line with damaged coating where it runs through abrasive caliche. Leaks left behind by unpermitted work or a do-it-yourself appliance hookup.

Gas leak detection typically runs $150 to $300 in the Las Vegas Valley, and gas leak repairs typically run $200 to $600. Those are typical ranges, not a quote. The actual figure depends on where the leak is, what part has failed, and whether a buried line has to be dug up, which takes longer through caliche. We can give a general idea on the phone and a written price on site before work starts. Many indoor leaks are found and repaired in one visit, and buried line work can take longer.

We sweep the system with electronic combustible gas detectors and run a pressure test to confirm whether the piping holds. Failed fittings, connectors and valves are replaced with parts approved for natural gas, using proper joint compound or tape rated for gas and correct support. Buried sections are repaired with properly coated pipe or a listed system and backfilled with compacted fill. Under the Southern Nevada Amendments, gas piping under a slab must be removable without disturbing the slab, so it runs in a conduit or a listed system. Every repair is pressure tested again before appliances are relit.

If you smell gas, leave the building first. Do not flip light switches, unplug anything, use a phone indoors or light a flame. Once everyone is outside and well away, call Southwest Gas, then call Active Plumbing at (702) 438-3357. We can give a general idea of cost on the phone and a written price on site before any work starts.