In Southern California, where water quality varies by region and drought restrictions demand efficiency, your water heater plays a crucial role in daily comfort and energy usage. Regular maintenance can extend its lifespan, improve performance, and help you avoid unexpected cold showers—or worse, an emergency leak.


Use this easy-to-follow water heater maintenance checklist to keep your system running smoothly all year long.


Why Maintenance Matters in Southern California

From hard water in the Inland Empire to coastal corrosion in Orange County, Southern California homes face unique challenges that can wear down a water heater faster than expected. If neglected, your system may:

  1. Waste energy
  2. Leak or burst
  3. Deliver inconsistent water temperature
  4. Require costly replacement sooner than necessary


Your Annual Water Heater Maintenance Checklist

1. Check the Temperature Setting

Set your water heater to 120°F to prevent scalding and reduce energy consumption. Southern California utility companies often recommend this setting to balance efficiency and safety.

2. Drain and Flush the Tank

Hard water in areas like Riverside, San Bernardino, and Anaheim leads to mineral buildup in your tank. Sediment can cause:

  1. Noisy operation
  2. Decreased efficiency
  3. Corrosion over time

Flush the tank at least once a year to remove sediment and preserve your unit’s lifespan.

3. Inspect for Rust or Corrosion

Look for signs of:

  1. Rust around the base or fittings
  2. Leaks underneath the tank
  3. Discoloration in hot water

This may signal that the anode rod has deteriorated or that tank corrosion has started. In homes near the coast, salty air can speed up rusting—inspect more frequently if you live in places like Huntington Beach or Santa Monica.

4. Test the Pressure Relief Valve (T&P Valve)

This safety valve prevents the tank from over-pressurizing. Carefully lift and release the valve’s handle—water should flow freely and stop when you let go. If not, it may need to be replaced immediately to avoid pressure-related damage or explosion risk.

5. Insulate the Tank and Pipes

In cooler parts of SoCal like Pasadena or San Gabriel Valley, insulating your water heater and nearby pipes can:

  1. Minimize heat loss
  2. Improve efficiency
  3. Lower energy bills

Use an approved water heater blanket and pipe insulation for best results.

6. Check for Leaks and Listen for Noises

Strange popping or rumbling sounds usually point to sediment buildup. Even small leaks can indicate failing seals or valves. Catching these early can prevent expensive damage to surrounding walls or flooring.

7. Schedule a Professional Inspection

While DIY maintenance helps, an annual inspection by a licensed plumber is the best way to catch hidden issues. We recommend scheduling one every 12 months—especially if your unit is over 5 years old or has had previous issues.

How Long Should a Water Heater Last in Southern California?

Most tank water heaters last 8–12 years with proper care. Tankless models can last 15–20 years, but they still require regular descaling due to SoCal’s hard water.

Is It Time for a New Water Heater?

Watch for these signs:

  1. Inconsistent water temperature
  2. Rusty or discolored water
  3. Frequent repairs
  4. Unit older than 10 years

Protect Your Comfort — Schedule Water Heater Maintenance Today

Don’t let a preventable water heater issue turn into a costly emergency. At A-1 Performance Rooter & Plumbing, we provide expert maintenance, repairs, and full water heater replacements across Los Angeles, Orange County, and the Inland Empire.

Our licensed team offers:

  1. Annual water heater maintenance
  2. Tank flushing & descaling
  3. Pressure valve testing
  4. Energy-efficient upgrade options

Contact us today to book your water heater service.

Extend your system’s life. Save money. Stay comfortable — with A-1 Performance Rooter & Plumbing.