By the All Systems Pros service team · Updated July 20, 2026
First, the safety sequence
If you smell gas (the rotten-egg odorant) indoors:
- Don't flip switches, light flames, or unplug anything — any spark is a risk
- Open doors on your way out; don't stop to open windows
- Get everyone (pets included) out and away from the building
- From a safe distance, call your gas utility's emergency line — SoCalGas: 1-800-427-2200
- Don't re-enter until the utility clears the building
The utility stops the danger; the repair comes next
The utility's job is to make the scene safe — typically by shutting gas off at the meter. Restoring service is the licensed plumber's job: locating the leak, repairing or replacing the failed section, adding code items like shut-off valves and sediment traps where they're missing, and pressure-testing the system before gas flows again.
What quality gas work looks like
Gas work is licensed work for a reason. Every All Systems Pros gas job — leak repair, rusted line replacement, or a new run for a range, dryer, or tankless water heater — ends with a pressure test and leak check, verified safe before we leave. One of our own public reviews describes exactly this job: a rusted gas line found, explained, and replaced at a fair price, quickly.
Slow leaks are still emergencies
A faint intermittent odor near an appliance, a hissing fitting, dead vegetation over a buried line, or a gas bill creeping up without explanation — small signs deserve the same respect. We dispatch 24/7; the check is fast, and the peace of mind is worth every minute.
About the author
Written and reviewed by the All Systems Pros service team — licensed plumbers holding Rheem ProPartner, A. O. Smith, and Raypak factory certifications, with 30+ years of combined service experience, based in Monrovia, CA.