Water Heater Installation in St Charles, MO

Why Choose Warrior Sewer and Drain?
With a reputation for integrity, professionalism, and long-lasting results, Warrior Sewer and Drain isn't your average plumbing contractor. We're proud to be locally owned and operated, providing premium service and elite craftsmanship to every customer we serve. Our approach is simple—get the job done right the first time and stand behind our work with unmatched guarantees.
From the moment you call, you’re treated with respect and transparency. Every water heater installation is tailored to your household’s hot water needs, budget, and home layout. We don’t push products. Instead, we recommend what’s best for your family based on honest assessment and years of field-tested experience.
Water Heater Installations That Go the Distance
When it comes to installing a new water heater, the quality of your technician matters just as much as the quality of the tank. Improper installations can lead to sediment buildup, premature system failure, water damage, and safety hazards. That’s why our licensed professionals undergo rigorous training and maintain the highest standards of technical know-how.
We install both traditional tank water heaters and advanced tankless systems, helping you make informed decisions on:
- System capacity and flow rate
- Gas vs. electric configurations
- Energy efficiency ratings
- Recirculation options for instant hot water
- Upgrades for smart thermostat compatibility
Each installation includes careful removal and disposal of your old unit, code-compliant setup, and final inspection to ensure long-term performance and safety.
Is It Time to Replace Your Water Heater?
Many homeowners in St Charles delay replacing their water heaters until a cold shower or unexpected leak forces their hand. But waiting too long can cost you—both in emergency repair bills and potential water damage.
Here are some clear signs it’s time to upgrade:
- Your water heater is more than 10 years old
- The tank makes rumbling or popping noises
- Water has a rusty tint or a strange odor
- Hot water runs out too quickly
- You notice leaks or moisture near the base
- Energy bills are higher without explanation
If any of these sound familiar, our team is ready to help. We offer on-site evaluations and fair, upfront pricing, so you know exactly what to expect—no hidden fees, no gimmicks.
Gas and Electric Water Heater Installation Services
Different homes require different heating solutions. That’s why we specialize in both gas and electric water heater installations, making sure each system fits your home’s power source and efficiency goals.
Gas Water Heaters:
Efficient and cost-effective, gas water heaters are a popular choice for homes with natural gas lines. We install high-efficiency models with modern safety controls and precise temperature regulation. Many St Charles homeowners choose gas for its fast heating capability and lower monthly utility costs.
Electric Water Heaters:
Perfect for homes without gas access or where quieter operation is a must, electric water heaters offer dependable performance. We install top-rated electric systems that meet modern energy codes and reduce your electricity consumption over time.
Tankless Water Heaters:
Looking to eliminate standby heat loss and enjoy endless hot water on demand? A tankless water heater could be your solution. These compact systems are perfect for maximizing space and boosting energy savings. We guide you through sizing, flow-rate considerations, and installation timelines to ensure smooth transitions.
Built to Last—Protected Like No Other
When you hire Warrior Sewer and Drain, you’re not just buying a new water heater—you’re investing in decades of dependable performance and the strongest warranty coverage in the business. Many companies offer standard 6-year warranties. We go far beyond that.
What sets us apart?
- Industry-leading manufacturer warranties
- Extended labor guarantees
- Ongoing service support from the same trusted team
- Quality assurance backed by over 20 years of plumbing experience
We don’t install it and disappear—we’re your long-term plumbing partner.
Local Experts, Trusted Service
As part of the St Charles community, we take pride in treating our customers like neighbors—because they are. We're known for fast response times, transparent estimates, and respectful service every step of the way. No mess, no shortcuts, and no excuses.
What makes us different?
- Licensed, insured professionals with real expertise
- Flat-rate pricing—no surprise costs
- Clean job sites and safe work practices
- Prompt scheduling and clear communication
We’re not just installing water heaters—we’re protecting your comfort, your safety, and your investment.
Energy-Efficient Solutions for Today’s Homes
Energy efficiency isn’t just a buzzword—it’s a smart way to lower your utility bills and extend the lifespan of your system. Our team helps you choose water heaters with high Energy Factor (EF) ratings and guides you through available rebates or energy incentives.
We also offer:
- Installation of expansion tanks to relieve system pressure
- Thermal insulation upgrades to reduce heat loss
- Smart controls and Wi-Fi connectivity for remote management
Your new system will be as intelligent as it is powerful.
Emergency Replacement? We've Got You Covered
Nothing ruins a morning quite like an ice-cold shower. If your water heater has failed unexpectedly, we offer emergency replacements and same-day installations whenever possible. With fully stocked service trucks and experienced crews on call, we can restore your hot water with minimal downtime.
How It Works
Your water heater installation begins with a consultation. We'll assess your home’s current system, water usage, and plumbing layout, then offer our expert recommendations. Once approved, we schedule the installation at your convenience and handle everything from permits to haul-away. When we leave, you’ll have clean, consistent hot water—guaranteed.
Frequently Asked Questions
Most water heater installations can be completed in 2 to 4 hours, depending on the type of unit and whether modifications are needed. If you're upgrading from a tank to a tankless system, it may take a bit longer due to venting or electrical adjustments.
The right size depends on your household’s water usage. A family of four typically needs a 50-gallon tank or a tankless unit with at least a 7 GPM flow rate. We help determine the best fit based on your number of bathrooms, appliances, and daily habits.
A traditional tank water heater usually lasts 8 to 12 years, while tankless units can operate for 15 to 20 years with proper maintenance. Regular flushing and professional servicing extend the lifespan significantly.


Call the Professionals Who Stand Behind Their Work
Water heater installation isn’t something you want to gamble on. Leaks, energy waste, and comfort loss are all too common when corners are cut. At Warrior Sewer and Drain, we take the time to get it right—so you don’t have to worry later.
We’re committed to honesty, craftsmanship, and long-term solutions, not quick fixes. With industry-best warranties and a reputation for doing the job right, there’s no better team to trust with your water heater needs.
Ready to Upgrade Your Hot Water System?
Don’t wait for your old water heater to leave you in the cold. Call Warrior Sewer and Drain today at 636-498-2686 or schedule online here. We’ll guide you to the perfect system and handle your installation with the speed, professionalism, and care that has made us a trusted name across the region.
Hot water is comfort. Let us protect yours.
