Why does my fireplace smell like rotten eggs even when it's off?
In Asheville — where most homes off the Montford, North Asheville, and South Asheville mains run on natural gas — a rotten-egg smell from a fireplace that's switched off means gas is escaping, and the added odorant is doing its job. Don't touch a switch or light anything. Get everyone outside, then call your gas utility and us at (828) 545-0525.
Old masonry, retrofitted gas lines
Montford and North Asheville homes often had gas logs fitted into original masonry fireplaces, adding a supply line, a shutoff valve, and a flex connector that can loosen over years of heating cycles. South Asheville's newer clean-face units are sealed, but they're still fed by a line that had to be run and connected. Either way, when the unit is off and you still smell sulfur, the gas is coming from a joint that isn't holding. Natural gas is lighter than air, so it rises and drifts — a lingering smell means it's actively escaping, not a one-time whiff.
Get out before you investigate
Treat it as the emergency it is. Leave switches, the thermostat, and the garage-door opener alone, don't strike a match or unplug anything, and walk everyone and the pets out the door. From the driveway or a neighbor's, call your gas provider or 911, then reach us. Because we're headquartered right here on Emma Rd, these neighborhoods are home turf; once the area is safe we locate the leak, pressure-test the line, and make the repair.
Why a pro has to touch it
In North Carolina, opening, repairing, or testing a gas line is licensed work — there's no do-it-yourself version of a leak. Steady Flame is a licensed gas contractor; we pull the Buncombe County permit, pressure-test the line, and stand behind the fix. A half-second whiff right at ignition can be normal; a rotten-egg smell that hangs in the room, especially with the fireplace off, always earns a call to (828) 545-0525.
Fireplace help in Asheville
We install and service fireplaces throughout Asheville and the rest of Buncombe County — we're headquartered right here.
Related questions
- Is it normal to smell a faint whiff of gas for a second or two when my fireplace ignites?
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- Why does my carbon monoxide detector go off when I use my fireplace?
- Why do I smell exhaust fumes when my direct-vent fireplace is running?
- Why does my ventless fireplace give me a headache or make the air feel stuffy?

