Emergencies
Water Heater Leaking? What to Do Right Now
Updated · Copperline editorial
Find where it's leaking
- Fittings on top: often fixable by tightening or replacing a connector
- Relief valve discharge: can signal high pressure or temperature
- Bottom of the tank: usually a corroded tank that needs replacing
Shut it down safely
Close the cold inlet valve. For electric tanks, turn off the breaker. For gas, turn the control to off. Let the water cool before draining.
Check for hidden spread
Garage water heaters can push water under the door into the house; closet units leak into adjoining walls and flooring. Appliance leak water damage covers what to check.
Arizona hard water
Southern Arizona water is hard, which builds sediment in tanks and shortens their life. Many subdivision homes are now at the age when original tanks fail.
Garage and closet installs
Many Arizona homes have water heaters in garages or interior closets. A tank leak in an interior closet can soak adjacent drywall and flooring quickly; a drain pan with a drain line limits damage.
Water Heater Leaking? What to Do Right Now: follow-up questions
How do I shut off a water heater?
Close the cold-water inlet valve on top, and turn the gas control to off or switch off the breaker for an electric heater.
Can a leaking water heater be repaired?
Leaks at fittings or valves often can. A leak from the tank itself means replacement.
Every home differs; editorial standards.