By the Salem Oregon Plumbing Guys team. Reviewed against the Oregon Plumbing Specialty Code (OPSC), based on the Uniform Plumbing Code (UPC), and the permit requirements of the Oregon Building Codes Division.
This page exists to be direct rather than exploratory, because a gas smell in a home is a genuine safety situation, not a diagnostic puzzle to work through calmly. The correct response is short, and it's worth reading now, before it's ever needed, rather than trying to remember it in the moment.
Leave the property immediately. Get everyone, including pets, out of the house and away from it, to a safe distance outside. This is the first and most important step, and everything else on this page happens after that step, not before or instead of it.
On the way out, do not touch, flip, or operate any light switch, electrical outlet, appliance, garage door opener, or anything else that could create a spark. Natural gas requires a spark or flame source to ignite, and eliminating that possibility while evacuating is a critical part of the safety response, not an optional precaution.
Do not attempt to locate the source of the smell, open windows for ventilation, or do anything else inside the home once a gas smell is noticed. The instinct to investigate or ventilate is understandable, but it delays getting people out, and it's not the priority in this specific situation. Investigation and ventilation are for after everyone is safely away from the structure.
Once safely outside and away from the house, call to report the gas smell from a safe distance, using a phone away from the building rather than a landline inside it. NW Natural, Salem's gas utility provider, maintains an emergency line specifically for this, and calling them directly is the appropriate first call for a suspected gas leak, alongside 911 if there's any immediate danger.
Do not re-enter the home until it's been confirmed safe by the gas utility or emergency responders. This can feel like an overly cautious wait when nothing seems to be actively wrong, but a leak that isn't yet at a dangerous concentration inside the home can still be actively ongoing, and a professional confirmation that it's safe is worth the wait every time.
Once the immediate safety situation is resolved and the source is identified, the follow-up plumbing work, repairing or replacing the affected line, verifying the rest of the system, and re-inspecting connections, falls under fuel gas provisions of the Oregon Plumbing Specialty Code and requires a licensed plumber and, in most cases, a permit and inspection before gas service is restored to that line.
A faint, occasional gas-like smell that comes and goes, rather than a persistent, strong odor, still deserves the same seriousness of response, not a wait-and-see approach. Natural gas has an added odorant specifically so it's detectable at low concentrations before it reaches a dangerous level, which means noticing even a faint smell is the system working as intended, not something to dismiss as probably nothing.
Outdoor gas smells, near a meter, a gas fireplace vent, or where a line enters the house from outside, deserve the same seriousness as an indoor smell, though the immediate evacuation instruction shifts slightly: move away from that specific area and call from a genuinely safe distance rather than continuing to investigate or stand near the source while waiting for a callback.
Carbon monoxide detectors and gas leak detectors are two different devices worth having both of, not one instead of the other, since a gas leak detector responds to the fuel itself while a carbon monoxide detector responds to a byproduct of incomplete combustion from a malfunctioning appliance. Neither replaces the human sense of smell as the primary warning system, but both add a genuine layer of protection worth the modest cost.
Anyone who's had gas service restored after a leak repair should confirm with the technician, before they leave, that every appliance on that line, water heater, furnace, range, stove, has actually been relit and is working correctly, rather than assuming restored service automatically means every connected appliance is back to normal.
| Do | Don't |
|---|
| Leave the house immediately | Investigate the source yourself |
| Get everyone and pets outside | Turn any light switch or appliance on or off |
| Call from a safe distance outside | Use a phone or landline inside the home |
| Wait for confirmation it's safe | Re-enter before that confirmation |
- Leave immediately, don't stop to investigate
- Don't touch any switch, outlet, or appliance on the way out
- Call from outside, away from the building
- Don't go back in until told it's safe
If this is the kind of problem you're dealing with right now, it may be time to look at gas line installation and repair, water heater installation, and tankless water heater directly rather than just reading about it.
Call (971) 326-9890 and describe what to do next in your situation