Why is my water heater leaking?

Your water heater may leak due to a loose drain valve, faulty pressure relief valve, corroded tank, or leaky pipe connections. In some cases, it’s just condensation. Inspect the unit to identify the source, and consult a professional if the leak persists or involves pressure or tank damage.

Noticing water around your water heater can feel like a minor nuisance, but it often points to a problem that needs attention. Whether you’re dealing with a steady drip or a more serious leak, pinpointing the cause is the first step toward a solution.

This guide covers the most common reasons your water heater might be leaking, how to handle repairs safely, and when it makes sense to bring in a professional for water heater repair in Las Vegas.

Is Your Water Heater Really Leaking?

Before assuming the worst, confirm the water is coming from the unit itself. Sometimes condensation or water from nearby plumbing can look like a leak. Take a few minutes to inspect the area closely.

Signs of a Leak

• A visible puddle near the base of the heater
  
  
• Dampness around the bottom or sides of the tank
  
  
• Drips from attached pipes
  
  
• Water escaping from the pressure relief or drain valves
  
  
• Rust forming on the exterior
  
  
• Stains or discoloration on surrounding walls or floors
  
  

If any of these symptoms are present, you’re likely dealing with a leak.

Common Causes of a Water Heater Leak

1. Loose or Damaged Drain Valve

Located near the base of the tank, the drain valve allows you to empty the unit during maintenance. Over time, it can loosen or wear out.

What to Do: Check the valve connection. If it’s dripping, try tightening it gently with a wrench. If the valve is cracked or continues leaking, replacement is the best option.

2. Faulty Pressure Relief Valve (TPR Valve)

This valve keeps the tank from building too much pressure. When it leaks, the cause might be excess pressure or a malfunction.

What to Do: Inspect the valve (usually located on the side or top) and the pipe attached to it. A stuck or worn valve might need flushing or replacement. If high pressure is behind the leak, call a professional.

3. Corroded Tank

Water heaters typically last 8 to 12 years. As they age, rust and sediment can eat away at the tank walls.

What to Do: Look for rust on the outside of the tank or rusty water pooling underneath. If the tank itself is compromised, replacement is the only fix.

4. Leaky Pipe Connections

Cold water enters through one pipe, and hot water exits through another. These joints can loosen over time.

What to Do:
Check the connections at the top of the tank for moisture. Tighten them if needed. If the fittings look damaged or corroded, a plumber may need to step in.

5. Condensation

Especially during cooler weather, condensation can collect on the outside of the tank as cold water enters.

What to Do: Dry the tank and check again after a few hours. If the moisture returns but doesn’t seem consistent, it’s probably condensation. Insulation can help prevent this. If you’re unsure, a technician can confirm.

6. Worn Gasket in Electric Units

Electric water heaters have gaskets around the heating elements. These can wear out over time.

What to Do: Turn off power and water supply. Remove the access panel to inspect the gasket for leaks. Replacing the gasket usually solves the issue. If you’re not comfortable working with electrical systems, leave this to a professional.

Safe Steps for Repairing a Leaky Water Heater

If you’re confident tackling small repairs, follow these steps to safely check and possibly fix the issue:

Step 1: Turn Off Power or Gas

• Electric: shut off the circuit breaker
  
  
• Gas: turn the gas control to “off” and close the gas valve
  
  

Step 2: Turn Off the Water Supply

• Rotate the cold water valve at the top of the heater clockwise until it stops
  
  

Step 3: Drain the Tank (If Needed)

• Connect a garden hose to the drain valve
  
  
• Direct the hose outside or to a floor drain
  
  
• Open the valve carefully and let the tank empty
  
  

Step 4: Locate the Leak

• Use the above checklist to find the source
  
  

Step 5: Repair or Replace Parts

• Tighten loose valves or connections
  
  
• Replace worn gaskets
  
  
• Call for professional service if the tank is damaged
  
  

When to Call for Water Heater Repair in Las Vegas

Local conditions like hard water and temperature fluctuations can wear down water heaters faster than expected. If the leak persists or the problem isn’t clear, it’s time to bring in a professional.

Call a plumber if:

• Water is leaking from the tank body
  
  
• Pressure issues seem to be involved
  
  
• Leaks keep coming back
  
  
• You’ve tried basic repairs with no improvement
  
  
• The unit is over a decade old and showing signs of rust
  
  

At Evolve Air Conditioning, Heating & Plumbing, our licensed technicians can handle everything from minor repairs to full water heater replacements.

Should You Replace Your Water Heater?

Frequent leaks, rising energy bills, and unreliable hot water are common signs that your system is on its last legs. Upgrading to a newer model can improve performance and reduce the chance of future problems.

Advantages of a New Unit:

• Better energy performance
  
  
• Reliable hot water
  
  
• Fewer repair needs
  
  
• Tankless options with extended lifespans
  
  

We can inspect your current setup and provide honest recommendations on repair versus replacement.

Let a Pro Handle It

Leaks may start small, but they rarely stay that way. Acting early can help prevent water damage, lower your energy costs, and keep your home running smoothly.

If you’re dealing with a water heater leak and aren’t sure what to do next, contact Evolve Air Conditioning, Heating & Plumbing in Las Vegas. Our technicians will troubleshoot the issue and offer the right fix—without the hassle. Get in touch today for a quote and fast service.

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