Water Heater Leaking

Waking up to a leaking water heater emergency is no one’s ideal way to start the day. But if you follow these steps you can prevent an emergency from becoming a disaster.

I Have No Hot Water

If your hot water heater is no longer providing hot water and the tank is electric-powered, check the fuse at the breaker and make sure it hasn’t flipped. If you have a gas hot water heater, you can also check the pilot light to determine if it is still operating. If neither of these simple fixes work, our customer service representative can help schedule a service call with one of our technicians.

Hot Water Heater Leaking

What to do when your water heater is leakingIf your water heater is leaking, we recommend that you turn off the water to the tank. Your water heater tank should have a dedicated shutoff valve on the cold inlet side of the water heater. If this is a gate-style valve (a wheel that turns), turn the valve clockwise as far as you can turn it. If the valve is a ball-style valve, turn the handle 180 degrees. We can help talk you through this if you call us at 1-866-465-7442.

If this valve is broken, you can shut the water off to your home. Each home should have a main water shut off valve that would stop the flow water to the entire house. If you are unable to locate this shut off valve, please give us a call and we can schedule a time to have one of our service technicians out to your home to help you right away.

Next, you will need to turn off the power supply. If you have an electric water heater, turn the power off at the breaker. If you have a gas water heater, you can turn off the gas at the dedicated gas shut off valve on the gas line leading to the tank.

Why is My Water Heater Leaking?

Hot water heaters are built with a glass-lined storage tank. Over time, the natural minerals in the water can calcify, and create deposits on the inside of the tank. These can crack the glass lining and cause the water heater to leak. Also, as water is heated, it expands. Over time, this expansion creates stress on the glass lining and can cause it to crack.

Unfortunately, when this happens, your hot water heater will need to be replaced; the cracks in the glass liner are not repairable. Sometimes, these leaks will not affect the performance or function of the water heater and people elect to wait on replacing the unit. As long as the leaking water isn’t causing damage, this is fine, but ultimately the unit will need to be replaced.

Electric Water Heaters

If you have an electric tank and are experiencing difficulty, we recommend that you shut off the power at the breaker before working with the tank. Just flip the breaker to off.

Gas Water Heaters

If you have a gas-powered water heater and are experiencing difficulty, we recommend that you shut off the gas supply before working with the tank. There should be a dedicated gas shut off valve on the gas line leading to the tank. See below for a visual illustration of a gas water heater shut down

How to Shut Down A Water Heater

  1. Turn off gas

  2. Turn off water supply

  3. Drain water tank

Our technician will drain your tank when they begin work. However, if your tank is leaking badly, you may want to drain it immediately to prevent water damage. You can do this with an ordinary garden hose by screwing the hose onto the drain at the bottom of the tank and then turning the drain valve to open.

It’s important that you make sure to drain the tank to a proper location such as a gutter drain or sink. Do not drain the water onto your lawn or driveway as sediment and rust from the tank can harm your grass or stain your driveway.

My Gas is Leaking- I Smell Gas!

If you believe you have a gas leak at the water heater, you can turn off the gas at the dedicated gas shut off valve on the gas line leading to the water heater. If you believe that you continue to have a gas leak problem, you can call Fast for service at 1-866-574-2963.

In the case of a serious gas leak or emergency, it is always best to contact your energy company immediately.


  • If You smell gas:
    • Locate the meter outside your home. Turn gas valve ¼ turn from ON to OFF.
    • Contact your gas company