Water Heater Smells Like Gas? Here's What to Do

A faint or occasional gas smell still needs an immediate response. Do not stay beside the water heater to work out whether the odor is serious. Leave the property, contact emergency responders and your gas utility from a safe location, and follow their instructions.

What to Do If You Smell Gas Near a Water Heater

• Get everyone out of the affected building and move a safe distance away.
• Avoid switches, plugs, phones, flames, vehicle ignition and automatic garage-door controls in the affected area.
• Call 911 and your gas utility from the safe location. Describe the suspected leak and property address.
• Wait for responders to say the property is safe before returning.

Do not attempt a pilot relight, valve adjustment, leak test or repair while a gas leak is suspected. Do not delay leaving to ventilate the room or inspect the equipment. Atmos Energy’s leak guidance directs people to leave immediately and report a suspected leak from a safe distance. Use your own gas provider’s emergency contact; Atmos is not every household’s utility.

Is a Faint Gas Smell Safer Than a Strong One?

Odor strength cannot establish safety. Atmos explains that continued exposure can reduce a person’s ability to notice the odor, and other conditions can mask or diminish it. A fading smell or lack of hissing does not clear the property for use. PHMSA’s emergency guidance also says to leave rather than search for the source, avoid ignition sources and report the concern from a safe location.

Gas Smell Near the Heater or Odor in Hot Water?

Water can have a sulfur-like odor for reasons that need a plumbing or water-quality assessment. That possibility does not rule out a gas leak. If the odor is in the room, near the appliance, or its source is uncertain, follow the suspected-leak steps above instead of running a home smell test.

After responders have cleared a suspected gas hazard, describe when and where an odor occurs to your plumber. Bradford White’s homeowner guidance recommends professional help for rotten-egg-smelling water. Do not remove the anode rod or change components on a guess; use the exact model’s service requirements.

What Happens After the Property Is Cleared?

Keep any utility or responder instructions, including restrictions on using the equipment. A licensed professional can then assess permitted repair work, the gas connections, controls, burner and venting as appropriate to the installation. A smell alone does not identify a failed thermocouple, gas valve or other component.

Ask for the diagnosis, repair options, any required replacement scope and a written price before approving work. Costs and timing depend on the actual fault, parts and installation; this article does not quote a standard gas-leak repair price. Follow the utility’s instructions about restoring gas service.

Schedule Plumbing Repair in Central Texas

Kimco Plumbing & Air is based in Lexington and provides scheduled gas line service and water heater service across its Central Texas coverage area. Kimco does not provide emergency dispatch or after-hours response. For a suspected gas leak, contact 911 and the gas utility first.

After the property is cleared, call (737) 260-7255, Monday–Friday, 8 AM–5 PM Central Time, with your town, equipment information and any responder instructions. Confirm coverage, the next appointment and the repair scope. Texas plumbing license: M-37654.

For scheduled work, see local water heater service in Elgin, Bastrop, Smithville, Giddings and Pflugerville.

Sources

Emergency steps follow Atmos Energy and the Pipeline and Hazardous Materials Safety Administration. The separate water-odor guidance follows Bradford White. Sources checked October 12, 2026. Follow your utility and emergency responders for the situation at your property.