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A leaking gas water heater is two problems at once: water where it should not be, and a fuel-burning appliance sitting in it. The water side follows the same trace as any heater. The gas side adds rules that are not optional — and the first one is about smell, not water.
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If you smell gas: leave the home, and call the utility's emergency line or 911 from outside. Do not relight pilots, flip switches, or investigate. For water alone, with no gas smell: you can close the cold water supply to the heater if safely reachable, and the gas control can be set to 'pilot' or off per the unit's label instructions — but never dismantle gas piping, the flue, or the burner to look for a leak. Venting faults and combustion problems are diagnosis work for a trained technician with the right instruments.
Beyond tracing the water, a proper gas-unit inspection includes burner and flue condition, signs of backdrafting or scorching, the state of the gas control, and whether water has reached components that must be replaced rather than dried out. You will get the leak finding and any safety findings together, in writing, before approving work.
Related help: Water heater repair · Tank leak guide · All leak help
Call to discuss the symptoms. We confirm availability and any diagnostic fee on the call — and the full price in writing before any work starts.
Call (317) 680-1542Water Leak Repair Pros — your Westfield water heater team.
Leave first and call the utility or 911 from outside — that is the whole instruction. Gas smell is never a 'wait and see', with or without a leak.
Yes. Water reaching the burner, control valve or flue can corrode parts and create combustion and venting hazards. That is why a gas unit that has sat in water gets a safety check, not just a fitting repair.
Very possibly — moisture, rust debris and a compromised thermocouple are a common chain. Repeatedly relighting is not a fix; the unit needs diagnosis.