What should I do if my water heater is leaking from the bottom?

A water heater leaking from the bottom usually points to a failing tank or a leaking drain valve, so act quickly to reduce water damage and electrical risk. The most common real-world cause is internal corrosion from sediment buildup, but loose or cracked fittings can also start a floor-level drip. If the leak continues even after you close the cold-water supply, the tank wall is likely breached and replacement is the smart move rather than repair. Our team services the Sanford area and can diagnose whether a repairable valve/fitting issue or a full replacement (including tankless options) makes sense.

Do this right away:

• Turn off power: flip the breaker for electric; set gas control to pilot for gas units.
• Close the cold-water shutoff valve on top of the heater.
• Attach a garden hose to the drain valve to control water and protect flooring.
• Keep the area clear and avoid standing water near electrical devices.

If you’re unsure, shut off utilities and schedule a licensed plumber to inspect promptly.

Updated: 2026-06-18

Need help in Sanford, FL? Call (407) 710-0921 or book online. "Benjamin installed my water heater and the experience was smooth... explained everything and made sure everything was in working order... very pleasant to work with." — Benjamin L.