No hot water, or a heater that’s leaking, rumbling, or running out fast? Authority Plumbing & Drain repairs, replaces, and installs gas, electric, and tankless water heaters across St. Charles County. We’re licensed, bonded, and insured with 25+ years of experience and a 4.9-star rating. Call and we’ll get your hot water back.
Water heater repair near St. Charles, MO
Not every water heater problem means replacement. Often a repair gets you years more out of the unit. We diagnose and fix the common failures: a bad heating element or thermostat on electric units, a failed gas valve, thermocouple, or pilot on gas units, leaking fittings, sediment rumble, and tripping breakers. If your water is lukewarm, takes too long to recover, or you smell gas, call us before it gets worse.
Water heater installation & replacement
When a heater is past saving, usually 8 to 12 years old, leaking from the tank, or failing repeatedly, replacement is the smarter spend. We size the new unit to your household, handle the haul-away, and install it to code with proper venting, expansion tank, and shut-offs. We install standard and high-efficiency gas, electric, and tankless systems from trusted brands including Rheem, A.O. Smith, State, Bradford White, and Noritz.
Tank water heaters
Lower upfront cost and simple to service. A good fit for most St. Charles County homes. We carry common sizes and can often replace a failed tank same-day or next-day.
Tankless water heaters
Endless hot water, lower standby energy use, and a smaller footprint. We handle tankless water heater installation in St. Charles, including the gas and venting upgrades some homes need.
Signs it’s time to repair or replace
- No hot water, or it runs out far faster than it used to
- Rumbling or popping from the tank (sediment buildup, which is common with St. Charles County’s harder water)
- Water around the base of the tank, or rust-colored hot water
- The unit is 8–12+ years old and needing repeated repairs
- Higher energy bills from an aging, inefficient unit
Hard water speeds up sediment and scale, which shortens a heater’s life and hurts efficiency. That’s one reason St. Charles County units often need attention sooner than the label suggests.
Water heater questions, answered
Can you replace a water heater the same day?
Often, yes. For common tank sizes we can usually replace a failed unit same-day or next-day. Tankless and units needing gas or venting changes may take a bit longer.
How much does water heater replacement cost in St. Charles?
It depends on the type, size, and any code or venting upgrades needed. We give a clear price before any work starts, with no surprises at the end.
Is tankless worth it?
For many households, yes. You get endless hot water and lower standby losses. We’ll tell you honestly whether your home is a good candidate or whether a quality tank unit makes more sense.
Do you service the water heater you didn’t install?
Yes. We repair and maintain water heaters regardless of who installed them.
Get your hot water back
Licensed water heater repair, replacement, and installation across St. Charles County.
Call (314) 326-1160