Hot Water Heater Leaking? – 7 Steps to Take

Is there anything more frustrating than discovering a hot water leak in your home? Not only can it lead to a higher water bill, but it can also damage your property if left unattended. But don’t worry, we’re here to help you tackle this plumbing issue head-on! In this guide, we’ll walk you through the steps to fix a hot water leak, whether it’s a small drip or a more significant problem. Let’s get started on your journey to a dry and worry-free home!

Inside this blog:

  • The 7 essential steps to fix your hot water heater from leaking
  • Tips to follow for each key step

Keep reading to discover everything you need to know about how to fix a leaky water heater so you can ensure you have hot water all year round!

Step 1: Turn Off the Power and Water Supply ๐Ÿšฐ

You’re likely very eager to fix your hot water heater leaking, but before you begin any work on your hot water system, safety should be your top priority:

  • Shut Off the Power: Turn off the electricity supply to your water heater at the circuit breaker or fuse box. This prevents any electrical hazards while working on the unit.
  • Turn Off the Water Supply: Locate the cold water supply valve near your water heater and turn it off. This stops the flow of water into the tank.

Step 2: Identify the Source of the Leak ๐Ÿ•ต๏ธ


Once you’ve ensured safety, it’s time to pinpoint the source of the leak:

Step 3: Drain the Tank ๐Ÿšฝ

To work on the water heater, you’ll need to drain the tank:

  • Attach a Hose: Connect a garden hose to the drain valve located near the bottom of the tank. Ensure the other end of the hose is placed in a suitable drainage location, like a floor drain or outside. Using a hose directs the water safely away from the work area.
  • Open the Valve: Slowly open the drain valve to allow water to flow out of the tank. This process may take some time, so be patient. It’s important to do this gradually to prevent excessive splashing or sudden pressure release.

Step 4: Replace or Repair the Faulty Part ๐Ÿ› ๏ธ

Depending on what you’ve identified in Step 2, you may need to:

  • Replace a Leaking Tank: If the tank itself is leaking, you may need to replace the entire water heater. Consult a professional for this task. Keep in mind that replacing the tank is a more significant undertaking and should be done by a trained technician.
  • Replace a Faulty Valve: If the pressure relief valve or any other valve is the source of the leak, consider replacing it. Consult the manufacturer’s instructions or a professional plumber for guidance. Valves are crucial components of your hot water system, and proper replacement ensures the continued safe and efficient operation of your heater.

Step 5: Test the Repairs ๐Ÿšฟ

After completing the necessary repairs or replacements:

  • Close the Drain Valve: Once the tank is empty, close the drain valve. Ensure it is tightly closed to prevent any water from escaping during the refill.
  • Turn On the Water Supply: Reopen the cold water supply valve to fill the tank. Allow the tank to fill completely before proceeding to the next step.
  • Turn On the Power: Switch the electricity back on at the circuit breaker or fuse box. Make sure to do this step only after ensuring that the tank is full to avoid any damage to the heating elements.

Step 6: Check for Leaks ๐Ÿ”Ž

Keep a close eye on your water heater to ensure that your repairs were successful:

  • Inspect for Leaks: Check around the water heater and valves for any signs of new leaks. If you notice any, promptly address the issue. Small leaks can quickly escalate if left untreated.
  • Monitor the Pressure Relief Valve: Keep an eye on the pressure relief valve to ensure it’s not releasing excessive water. If it continues to do so, it may indicate an underlying problem that requires professional attention. Ignoring this issue can lead to both water waste and potential damage to your water heater.

Step 7: Routine Maintenance and Prevention ๐Ÿ’ง


To prevent future leaks and maintain your hot water system:

  • Schedule Regular Maintenance: Consider having your water heater serviced annually by a professional plumber. They can inspect, clean, and maintain the unit to prolong its lifespan.
  • Replace Anode Rod: Water heaters have sacrificial anode rods that help prevent corrosion. Have a plumber check and replace them as needed to extend your tank’s life.
  • Monitor Water Pressure: Excessively high water pressure can strain your water heater and plumbing. Consider installing a pressure-reducing valve (PRV) if your water pressure is consistently high.
  • Inspect for Corrosion: Regularly check for signs of corrosion on the tank and connections. Address any rust or corrosion promptly to prevent leaks.

Give Yourself Dry and Comfortable Living ๐Ÿก

A hot water leak can be a headache, but by following these steps and taking preventive measures, you can fix the issue and ensure a reliable supply of hot water in your home. Remember that safety should always come first, so turn off the power and water supply before attempting any repairs. If you’re uncertain or uncomfortable with the process, don’t hesitate to call a professional plumber for assistance. With proper maintenance and vigilance, you can enjoy a dry and comfortable living space for years to come. Happy plumbing! 

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