Short answer
Leave the house immediately. Don't switch lights on or off, use the garage door, or make calls inside. From a safe distance, call 911 or your gas utility's emergency number, which is printed on your gas bill. Once the utility has made it safe, a plumber repairs the leak.
Get out first
Natural gas smells like rotten eggs because of an added odorant. Any spark, from a switch, a doorbell or a phone, can ignite a strong concentration. Leave doors open as you go if it's safe, and get everyone out, pets included.
Who to call
- 911 for an immediate hazard
- Your gas utility's 24-hour emergency line, printed on your bill and on the utility's website
- Your propane supplier, if your home runs on a propane tank
After the utility visit
The utility may shut off and lock the meter. A licensed plumber then locates and repairs the leak, pressure-tests the system and relights appliances, and the utility restores service.
When to call a plumber
- The utility has made it safe and you need the line repaired.
- You want a gas line added for a new appliance.
What the plumber does: see gas line repair.
Common questions
Can I shut off the gas at the meter myself?
Only if it's safe and you know how. Otherwise leave it to the utility or the fire department.
Editorial note: this guide is general information for homeowners, not a diagnosis. Conditions vary by home, so a licensed plumber should confirm the cause before any repair.