Why Is My Water Heater Leaking? Common Causes & Solutions

A leaking water heater can quickly go from a small inconvenience to a major problem. If you’re a homeowner in Baldwin Park, CA, you’re not alone — this is one of the most common plumbing issues we see. In this article, we’ll explain why your water heater might be leaking, what to do about it, and when to call a professional.

🔍 Common Reasons Your Water Heater Is Leaking:

1. Faulty Pressure Relief Valve
This valve releases pressure when your tank gets too hot. If it’s worn out or stuck, it can drip water continuously.

2. Loose Water Connections
Over time, the connections at the top of your water heater (inlet and outlet pipes) can loosen, causing visible leaks.

3. Internal Tank Corrosion
Rust inside the tank is a sign that the anode rod may have failed — and once the tank starts corroding, leaks are likely.

4. Sediment Buildup
Minerals in your water settle at the bottom of the tank. This buildup can cause overheating, cracking, and leaking from the base.

5. Cracked Drain Valve
If the drain valve at the bottom is leaking, it may just need to be tightened or replaced — but ignoring it can lead to bigger issues.

🛠️ What To Do If Your Water Heater Is Leaking:

• Step 1: Turn Off Power or Gas
  Electric heater? Shut off the breaker. Gas heater? Turn off the gas valve safely.
• Step 2: Shut Off Water Supply
  Find the cold water valve at the top and turn it off to stop more water from entering the tank.
• Step 3: Call a Certified Plumber
  A licensed plumber can diagnose the issue, recommend repair or replacement, and get your hot water running again — safely and quickly.

📞 Need Help in Baldwin Park?

At MCD Plumbing, Martin Herrera offers certified, honest service you can trust. We provide free in-home estimates, explain everything clearly, and even show you before-and-after photos of the work. Whether it’s a minor fix or a full replacement, you’ll always know what you’re getting — and why it matters.