A leaky water heater can quickly become a serious issue, causing water damage to your floors, walls, and surrounding structures. 

Many homeowners don’t realize there’s a problem until they see water pooling around the unit's base, by which point the damage may already be done. Even a tiny leak from the bottom of the water heater can lead to structural damage, mold growth, and expensive repairs if left unchecked.

If you’re facing water damage restoration in Maple Shade, NJ, Restoration Specialists can help assess and repair the damage before it worsens. Understanding the causes of water heater leaks and taking preventative measures can help you avoid unnecessary costs and keep your home safe.

Common Causes of Water Heater Leaks

A leaking water heater can stem from various issues, including faulty components, corrosion, or excessive water pressure. Some of the most common causes include:

• Pressure Relief Valve Malfunction – If the pressure relief valve is stuck or broken, water can escape from the hot water tank.

• Corrosion and Rust – Over time, water heaters corrode, leading to holes and cracks in the tank that allow water to leak.

• Loose Drain Valve – If the drain valve is not fully closed or has become loose, water can seep out slowly, creating puddles around the heater.

• High Water Pressure – Excessive water pressure can strain the water heater, causing leaks or bursts in the connections.

• Sediment Buildup – Hard water deposits accumulate at the bottom of the tank, leading to overheating and eventual leaks.

Signs That Your Water Heater Is Leaking

Detecting a water heater leak early can help prevent severe water damage. Look out for the following warning signs:

• Puddles of water around the base of the heater

• Rusty or discolored water coming from your taps.

• Unusual sounds like banging or popping from the heater

• A sudden spike in your water bill

• A lack of hot water or inconsistent water temperature can indicate issues with the water heater.

If you notice any of these signs, take immediate action to prevent further damage.

Steps to Prevent Water Heater Leaks

Regular inspection and maintenance can extend the life of your water heater and reduce the risk of leaks. Here’s how to prevent water damage from a leaking water heater:

1. Inspect the Water Heater Regularly

• Check for visible leaks, rust, or corrosion on the water tank and pipes.

• Examine the pressure relief valve for any dripping water.

• Look for moisture or water pooling at the base of the unit.

2. Flush the Tank Annually

• Sediment buildup in the hot water tank can increase pressure and cause leaks.

• Drain and flush the tank once a year to remove minerals and debris.

• Connect a hose to the drain valve and flush until clear water flows out.

3. Maintain the Pressure Relief Valve

• Test the pressure relief valve by lifting and releasing the lever—water should flow out momentarily before stopping.

• If the valve is leaking or not working correctly, replace it immediately.

4. Check the Water Pressure

• High water pressure can stress the tank and cause leaks.

• Install a water pressure regulator to keep levels within 40-60 psi.

• If your home’s water pressure is too high, consider installing an expansion tank to relieve strain on the heater.

5. Replace the Anode Rod

• The anode rod prevents the tank from corroding by attracting minerals and sediment.

• Replace the anode rod every 3-5 years to prolong the life of your water heater.

6. Secure the Drain Valve

• Ensure the drain valve is tightly closed to prevent minor leaks.

• If the valve is faulty, replace it with a brass valve, which is more durable than plastic ones.

7. Install a Leak Detection System

• Leak detection systems alert you when water leaks from the hot water tank.

• Some advanced systems can automatically shut off the water supply to prevent flooding and damage.

What to Do If Your Water Heater Starts Leaking

Despite regular maintenance, a water heater leak can still happen. If you discover a leak, follow these emergency steps to prevent further water damage:

1. Turn Off the Power

   • For electric water heaters, switch off the circuit breaker.

   • For gas water heaters, turn the gas supply valve off.

2. Shut Off the Water Supply

   • Locate the cold water shut-off valve and turn it clockwise to stop the water flow, ensuring no water leaking occurs.

3. Drain the Tank

   • Attach a hose to the drain valve at the bottom of the heater and drain the water into a safe location.

4. Assess the Damage

   • Inspect the area for signs of water damage, including wet flooring, drywall, or mold growth.

5. Call a Professional Plumber or Water Damage Restoration Company

   • If the leak is severe, call a plumber to assess and repair the issue.

   • If the water damage is extensive, contact a water damage restoration service to mitigate damage and prevent mold growth.

How Water Damage from a Leaky Water Heater Can Affect Your Home

Ignoring a leaky water heater can lead to serious problems, including:

• Structural Damage: Water can weaken wood, drywall, and flooring, leading to costly repairs.

• Mold Growth: Excess moisture creates the perfect environment for mold and mildew, which can affect air quality and health.

• Electrical Hazards: Water and electricity don’t mix, and a leak near electrical outlets or wiring poses a serious safety risk.

• Higher Utility Bills: A leaky heater forces the unit to work harder, leading to higher energy and water bills.

When to Replace Your Water Heater

If your water heater is over 10 years old or leaks frequently, replace it with a new water heater. Consider upgrading to:

• Tankless Water Heaters – These systems provide hot water on demand and are less prone to leaks.

• Energy-Efficient Models – Modern water heaters are designed to use less energy, reducing your monthly bills.

• Smart Water Heaters—Some new models have leak-detection features and allow you to monitor water usage remotely.

Preventing water damage from a leaky water heater starts with regular maintenance and early detection. You can avoid costly repairs and structural damage by inspecting your water heater, flushing the tank, and installing leak detection systems.

If you experience water damage in your home, Restoration Specialists offers expert water damage restoration in Maple Shade, NJ. Our team can quickly assess and restore affected areas, helping protect your home from further issues.