Tankless Water Heater Service in Long Beach, CA

If you’ve ever been halfway through a shower when the hot water runs cold—yep, you know the pain. Traditional water heaters have limits. They fill up, heat, run out, and then make you wait while they recharge. That might’ve worked in the past, but for most modern households in Long Beach, that delay is a dealbreaker.

That’s where tankless water heaters come in. They heat water on demand—no tank, no running out, no waiting. But like any piece of equipment, they need proper care. Whether you’re installing a new one, fixing a finicky unit, or just staying on top of maintenance, we’ve got you covered. At Mr. Fix It Plumbing, we specialize in tankless water heater service across Long Beach, CA, delivering peace of mind and plenty of hot water.

In this guide, I’ll walk you through why tankless service matters, signs of trouble, how it all works, and when to call. Let’s make sure your hot water never lets you down again.

How Can We Serve You?

Opt In For Text Messages

Plumbing Services

Emergency Services

Tankless Water Heater Services

Water Line Services, Repair & Repiping

Gas Line Repairs & Repiping

Water Leak Detection Testing

Water Softener Installation

Sewer Line Repair

Water Filtration System Installation

Sump Pump Installation

Building Drain & Sewer Repairs/Repipe

Water Heater Installation

Water Leak Detection & Burst Pipe

Gas Leak Detection

Camera Inspection

Drain & Sewer Cleaning/Unclogging

By: Mark Meng, Licensed Plumber (CA License #883839)
Owner of Mr Fix It Plumbing | 25+ years experience in residential/commercial plumbing

Key Takeaways

    • Tankless water heaters heat water instantly and never run out—ideal for busy households in Long Beach.
    • Regular maintenance keeps them running efficiently and extends their lifespan.
    • Common warning signs include temperature swings, error codes, and rumbling noises.
    • Mr. Fix It Plumbing offers fast, honest, and expert service you can count on.

Why It Matters

Hot water is one of those everyday comforts that’s easy to overlook—until it’s gone. If your tankless unit isn’t serviced regularly, mineral deposits, sensor issues, or blocked vents can bring your whole system down. When that happens, you’re stuck with cold water, high bills, or worse—damage to the system itself.

Proper service ensures your water heater runs clean, safe, and strong. In a place like Long Beach where hard water is common, routine maintenance isn’t just a “nice to have.” It’s a must.

Key Benefits of Routine Tankless Water Heater Maintenance

Benefit

Why It Matters

Energy Efficiency

Reduces strain on the unit and lowers utility bills

System Longevity

Prevents buildup and wear that shorten the unit’s lifespan

Consistent Temperature

Keeps showers hot and pressure steady, even with high demand

Fewer Breakdowns

Catches small issues before they turn into expensive repairs

Cleaner Water

Prevents scale buildup that can affect water taste and safety

Common Signs You Need Tankless Water Heater Service

Not sure if your system needs attention? Watch for these signs:

  • Water isn’t staying consistently hot 
  • You’re seeing error codes or warning lights 
  • Unit is making strange noises (like popping or rumbling) 
  • Hot water pressure is dropping 
  • You notice strange smells or discolored water 
  • It’s been more than a year since the last check-up 

These may seem minor at first, but they’re your unit’s way of crying out for help.

How Our Tankless Water Heater Service Works

Here’s what happens during a typical tankless water heater service from Mr. Fix It Plumbing:

  1. System Inspection – We check for leaks, corrosion, proper flow rate, and error codes.

     

  2. Descaling – Hard water leaves mineral deposits inside your unit. We flush and descale to clean out that buildup.

     

  3. Cleaning the Filter – Sediment and debris can clog the system. We remove and clean all filters.

     

  4. Sensor & Vent Check – We test all sensors, gas connections, and venting systems for safety and accuracy.

     

  5. Performance Testing – Before we leave, we verify your system is heating properly and efficiently.

     

We bring the tools and know-how to keep your system running like new. No guesswork. No shortcuts.

When Should You Call Us?

If your hot water is acting up, don’t wait. These systems are efficient, but they’re also sensitive. Ignoring early warning signs can lead to expensive repairs—or even total replacement.

You should call Mr. Fix It Plumbing if:

  • You notice signs of trouble (see above) 
  • You’ve gone more than a year without a check-up 
  • You just moved into a home with an existing tankless unit 
  • You need help choosing or installing a new system 

How Often Should a Tankless Water Heater Be Serviced?

Household Type

Recommended Service Interval

Single or couple

Every 18–24 months

Family of 4+

Every 12 months

Homes in hard water areas

Every 6–12 months (Long Beach is one of these!)

Older or high-use systems

Annually, with mid-year checks if problems arise

If you’re not sure when your unit was last serviced, it’s probably time to give us a call.

Final Thoughts

Tankless water heaters are a smart investment—when they’re taken care of. A little maintenance goes a long way in keeping your hot water steady, your bills low, and your home safe.

At Mr. Fix It Plumbing, we’ve been serving Long Beach families for decades. We show up on time, give honest advice, and treat your home like it’s our own. Whether you need a quick repair, a full descaling, or a brand-new system, we’re ready to help.

Give us a call at (562) 988-2454 and book your tankless water heater service today. Hot water should be the one thing you don’t have to worry about.

FAQs About Tankless Water Heaters

H3: How long does a tankless water heater last?
Most tankless units last between 15 and 20 years with regular maintenance. If you take care of it, it’ll take care of you—simple as that. Routine flushing and part checks are key to reaching those longer lifespans.

H3: Can I service a tankless water heater myself?
Some light maintenance—like flushing it with vinegar—is doable if you’re handy. But it’s not just about cleaning. Professional service checks the gas or electric connections, diagnostics, and internal sensors. That’s not something you want to wing.

H3: What’s the average cost for service?
Most homeowners in Long Beach can expect to pay between $150–$300 for a full professional cleaning and inspection. Our pricing is always upfront and honest. No gimmicks. No mystery fees.

H3: Will this lower my energy bill?
Definitely. If your system is struggling with scale or buildup, it has to work harder—and that means higher bills. Cleaning it keeps it efficient and fast, which saves you money month after month.

H3: Do I need a water softener for my tankless system?
If you live in Long Beach, the answer is yes. Our water is hard, and hard water creates scale buildup. A water softener helps protect your system, keep it clean, and avoid premature failure. We can help with that too.

Need expert tankless water heater service in Long Beach?
Call Mr. Fix It Plumbing at (562) 988-2454 — we served our country, now we’re here to serve you.

About the Author

Mark Meng is a licensed Plumber (CA Lic: 883839) based in Long Beach, CA. He’s the founder of Mr. Fix It Plumbing, a veteran-owned business known for honest service, fast response, and getting the job done right the first time. His expertise was featured on an episode of Bar Rescue, where his team stepped in to resolve critical plumbing issues under pressure—on national TV.