Last updated: September 24, 2026
What affects the price
When you are shopping for a new water heater, the final cost depends on a few moving parts. First, consider the fuel source—switching from electric to gas or vice versa involves more labor. The capacity you need, measured in gallons, also changes the price tag, as does the physical footprint of the unit in your home. If your current plumbing or venting needs updates to meet modern safety codes, that adds to the work involved. We help you sort through these variables, with exact pricing confirmed free on the call.
About this service
When your RV water heater stops heating or leaks, it is usually due to a faulty heating element, burner assembly, or a damaged tank. Since these units are compact and use specific power sources like propane or 12V electricity, they require specialized diagnostic tools. You should call for help if you notice cold water during trips or signs of corrosion around the unit. Costs depend on the specific parts needed for your RV model. Exact pricing confirmed free on the call.
Frequently asked in St. Louis
How long do hot water heaters typically last?
RV water heaters typically last between 10 to 15 years, but this can vary based on usage and maintenance. Factors like water quality and whether the unit is winterized properly can influence its lifespan in the St. Louis climate. If your heater is nearing this age and exhibiting problems, it's a good idea to get it checked.
What is the average cost of putting in a water heater?
What is the most efficient type of water heater?
Tankless water heaters are generally considered more efficient for RVs because they heat water on demand, which saves energy and space. They can have a higher initial cost, though. Traditional tank water heaters are also a reliable option. The most efficient choice for your RV in St. Louis will depend on your specific needs and budget.
What are signs I need a new water heater?
Signs that you might need a new RV water heater include a lack of hot water, inconsistent water temperatures, or strange noises like banging or popping. Visible leaks around the unit or a decrease in the amount of hot water available are also indicators. It's important to have these issues assessed by a professional.
What is the most common problem with a hot water heater?
Common issues with RV water heaters often involve ignition problems, especially in propane units, or failures of the heating element. Sediment buildup in the tank can also lead to reduced efficiency and noise. Leaks, frequently caused by worn seals or corroded components, are another frequent concern that requires attention from a specialist.
Is it worth it to repair a hot water heater?
Repairing an RV water heater in St. Louis is often worthwhile for smaller issues like replacing a faulty thermostat or fixing minor leaks. However, if the unit is old and the tank shows signs of significant corrosion, or if the repair cost is high, replacement might be a more economical long-term solution. A technician can help you weigh the options.
Also serving nearby: O Fallon · Springfield · Columbia · Champaign · Peoria
More on this: DOE water heating — efficiency and sizing.
Service area details
Serving all of St. Louis — population 281,754; about 4,565 residents per square mile across 61.7 sq mi.
Neighborhoods served in St. Louis: The Hill, Central West End, Soulard, Tower Grove, Benton Park — and every surrounding area.
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