Tankless Water Heater Installation in St Charles, MO

Whether you’re building a new home or replacing an aging unit, choosing a tankless system ensures on-demand hot water, lower energy bills, and more space in your utility area. And when you partner with Warrior Sewer And Drain, you get the longest warranty in the industry and the peace of mind of working with local, licensed pros who stand behind their work—100% of the time.

Who We Are – Trusted. Local. Reliable.

Warrior Sewer And Drain isn’t your average plumbing company. We’re a team of certified, passionate professionals serving the greater St Charles region with a commitment to quality that runs deep.

As seen in our community-driven service approach, we believe in being transparent, punctual, and precise. We treat every job—big or small—with military-grade discipline and neighborly care. When it comes to plumbing upgrades like tankless water heater installation, our clients count on us for honest recommendations, flawless execution, and zero guesswork.

Our mission? To leave every home better than we found it—and back it up with the best guarantee in the business.

Why Choose a Tankless Water Heater?

Upgrading to a tankless water heater is one of the smartest long-term investments you can make in your home. Unlike traditional systems that store gallons of heated water (and keep reheating it all day), a tankless system only heats water when you need it.

Here are just a few reasons more homeowners in the St Charles area are switching to tankless:

• Energy Efficiency: Reduce energy bills by up to 30% annually.
  
• Unlimited Hot Water: Enjoy a constant supply, even during back-to-back showers or laundry runs.
  
• Longer Lifespan: Tankless models often last over 20 years with proper maintenance.
  
• More Space: Compact wall-mounted units free up floor space.
  
• Eco-Friendly: Reduce your carbon footprint with efficient technology.
  

Whether your goal is performance, savings, or sustainability, a tankless unit delivers on every front—and Warrior Sewer And Drain delivers the professional install that makes it possible.

Expert Installation Makes the Difference

Tankless water heater installation isn’t a “plug and play” operation. It takes proper sizing, fuel source compatibility (natural gas, propane, or electric), and specialized venting—along with flawless connections to your home’s water system.

Our team handles the entire process seamlessly:

1. On-site Assessment: We analyze your home’s layout, hot water needs, and existing plumbing.
   
2. Customized Recommendations: Based on your lifestyle and budget, we suggest top-rated systems.
   
3. Professional Installation: All plumbing, electrical, and venting work is performed to code.
   
4. System Testing and Education: We make sure it runs perfectly—and show you how to use it.
   
5. Full Cleanup: No mess left behind, ever.
   

We work with leading brands like Rinnai, Navien, Noritz, and Bosch, offering models that qualify for energy rebates and long-term manufacturer warranties.

And when Warrior Sewer And Drain installs it, you’ll be protected by the longest warranty in the industry—because we don’t believe in short-term solutions.

When Is the Right Time to Go Tankless?

If you’re facing any of the following, now may be the perfect time to consider upgrading:

• Your current water heater is 10+ years old
  
• You frequently run out of hot water
  
• Your energy bills are rising
  
• You hear strange noises or see rust-colored water
  
• Your space demands a more compact system
  
• You’re planning a remodel or adding a bathroom
  

Even if your current system hasn’t failed yet, upgrading proactively can save you hundreds of dollars in repair and operating costs—while giving you an improved user experience.

What Sets Warrior Sewer And Drain Apart?

Local Experience You Can Trust

We’re not a big-box chain or a faceless franchise. Warrior Sewer And Drain is family-owned, community-rooted, and focused on doing the job right—the first time.

Our certified plumbers are handpicked for their technical skills, but we only keep them on the team if they demonstrate honesty, respect, and accountability on every job.

Fast Scheduling. No Surprises.

We respect your time. Whether you call or book online, we keep our schedule commitments and keep you updated every step of the way. No surprises, no excuses.

Clean, Respectful Service

From floor protection to post-installation cleanup, we treat your home with the same care we’d give our own. Your property deserves respect—and we show it.

Iron-Clad Warranties

No one in the St Charles plumbing industry offers longer or stronger coverage. Our installation guarantee and the longest warranty in the industry are just more reasons locals continue to trust Warrior.

Long-Term Maintenance for Long-Term Performance

While tankless water heaters are low-maintenance, they aren’t no-maintenance. Our techs can help you set up a schedule for annual flushing, scale prevention, and filter replacement. This keeps your system efficient and your warranty valid for decades.

We also offer priority service and maintenance plans for added peace of mind.

Serving the Greater St Charles Community

From family homes to investment properties to small businesses, Warrior Sewer And Drain provides tankless water heater installation for a wide range of buildings and needs.

Some of the areas we commonly serve include:

• St Charles, MO
  
• O’Fallon
  
• Cottleville
  
• Weldon Spring
  
• St Peters
  
• Lake St Louis
  
• And surrounding Missouri neighborhoods
  

We’re proud to serve the community that supports us and treat every client like a neighbor—not a number.