Quick Scoop

If your water heater is leaking from the bottom, turn off the power and water supply right away , then drain the tank if it’s safe to do so and call a plumber or replace the unit if the tank itself is leaking.

What to do first

  1. Shut off power.
    If it’s electric, switch off the breaker; if it’s gas, turn the gas control to off.
  1. Shut off the water supply.
    Close the cold-water inlet valve near the top of the heater, or use the main water shutoff if the valve is stuck.
  1. Drain the tank if needed.
    Attach a hose to the drain valve at the bottom and run it to a safe drain point; this helps limit water damage and makes inspection easier.

What the leak might mean

A leak from the bottom can come from a loose drain valve , faulty fittings , or condensation , but if water is actually coming from the tank body itself, that usually points to corrosion or a failed tank , which is often not worth repairing.

When to call a pro

Call a plumber promptly if:

  • The leak is steady or getting worse.
  • You see rust, corrosion, or water coming from the tank seam/body.
  • You smell gas, see electrical issues, or can’t safely shut the unit down.
  • Water has reached floors, walls, or nearby appliances.

A safe rule of thumb

If the leak is from a valve or connection , it may be repairable. If it’s from the tank itself , replacement is usually the realistic fix.

If you want, I can also give you a 1-minute checklist for gas vs. electric water heaters.