Water Heater Replacement | AAA Home Services

One customer shared: “James S., Chesterfield, MO – Can’t say enough of how great Dan and Tim were in getting us a water heater replaced within a matter of hours. The customer service was so impressive, and unfortunately that’s seems to be lacking in 99% of all businesses nowadays. Dan listened and contacted Tim, both kept great communication and did everything they could and well beyond all my expectations due to all the non customer service experiences I see every where in this day and age!! AAA will be my one and only source for any home appliance or home service needs from here on out. Can’t thank you guys enough, great, great service in all, and the impeccable Customer Service we used to be able to get! Jim”

Old age : Most tank-style water heaters last 8-12 years. If your unit is in this range, it’s less efficient and more prone to failure, making replacement a wise consideration.
Leaks : Any leak from the tank itself is a major red flag. Tank corrosion is usually irreparable and requires immediate replacement to prevent water damage.
Rusty water : Discolored water from your hot taps (but not cold) indicates the tank is rusting from the inside and could fail soon.
Strange noises : Rumbling or banging sounds often mean hardened sediment buildup is stressing the tank, reducing efficiency and leading to failure.
Lack of hot water : If your unit can no longer meet your family’s needs, it may be failing or simply be too small. Consistent hot water shortages are a clear sign it’s time for an assessment.
Increased energy bills : A sudden spike in your utility bills can mean your water heater is losing efficiency and working harder than it should.

Unit Type: Tank vs. Tankless :
- Tank-style units are common and have a lower upfront cost. They store a reservoir of hot water, and installation is simpler when replacing a similar model.
- Tankless (on-demand) units heat water as you need it, providing endless hot water and long-term energy savings. Their initial cost is higher, and converting from a tank system may require plumbing and electrical work. If you’re weighing the options, we have more insights in our blog post about choosing a traditional vs tankless water heater. You can also find more details about tankless water heater installation in St. Louis.
Fuel Source: Gas vs. Electric :
- Gas water heaters often have lower operating costs but require a gas line and a venting system, which can increase installation complexity.
- Electric water heaters are typically cheaper to purchase and easier to install since they don’t need venting. However, operating costs can be higher, and switching from gas may require electrical upgrades. The fuel source is a crucial long-term financial consideration, as the average US household spends $400 to $600 per year on heating water.
Capacity and Size : The unit’s capacity—gallons for tank models or gallons per minute (GPM) for tankless—affects its price. A properly sized unit is crucial for comfort and efficiency. A small household might use a 30-40 gallon tank, while a larger family may need 50-80 gallons or a high-GPM tankless model.
Energy Efficiency : Models with the ENERGY STAR® symbol have a higher upfront cost but can lead to significant savings on utility bills. High-efficiency options include advanced tank models, tankless units, and hybrid heat pump water heaters.
Venting System : Gas water heaters require venting to expel combustion gases safely. The type of vent (atmospheric, power, or direct vent) can affect installation costs, especially if your new unit requires an upgrade from your old system.

Permits : Many local municipalities require permits to ensure the installation meets safety and building codes. We handle this process, and the fee is included in the project cost.
Disposal of old unit : There is typically a fee for the proper hauling and disposal of your old water heater.
Plumbing modifications : If existing pipes are corroded, not up to code, or don’t align with the new unit, additional plumbing work like rerouting lines or replacing valves will be necessary.
Electrical upgrades : Switching from gas to electric or installing a powerful tankless unit may require a new dedicated circuit or other electrical system upgrades.
Expansion tank : Many plumbing codes now require an expansion tank to absorb excess pressure, protecting your plumbing and the new water heater.
Water damage repair : If your old unit leaked, repairs to drywall, flooring, or mold remediation may be needed, which is a separate cost from the replacement itself.
Warranties : New units include a manufacturer’s warranty, but extended coverage for parts and labor can be purchased for additional peace of mind.

We understand that these additional costs can sometimes be unexpected. That’s why we pride ourselves on transparent communication. As one of our customers, James S. from Chesterfield, MO, shared: “Can’t say enough of how great Dan and Tim were in getting us a water heater replaced within a matter of hours. The customer service was so impressive… AAA will be my one and only source for any home appliance or home service needs from here on out.” We strive for this level of service and clarity with every job.

Safety Risks : Water heater installation involves gas lines, high-voltage electricity, and water pressure. Mistakes can lead to gas leaks, fires, or major water damage.
Code Requirements : Installations are governed by strict local codes. Work that fails inspection can lead to fines and costly rework. Professional installation ensures your system is installed safely and up to code.
Manufacturer Requirements : Most manufacturers require professional installation for proper warranty coverage. A non-professional job could leave you responsible for future repair or replacement costs.
Peace of Mind : Calling the trained water heater technicians at AAA Home Services means your new system is properly sized, correctly installed, and thoroughly checked before they leave your home.

Rebates and Tax Credits : Explore current incentives for qualifying high-efficiency water heaters, such as certain federal tax credits that may apply to energy-efficient models. Always verify current program details, limits, and eligibility before you buy.
Choose the Right Size : An oversized unit wastes energy, while an undersized one won’t meet your needs. AAA technicians can help you select the ideal capacity for your household to balance comfort and efficiency.
Long-Term Energy Use : Investing in a more efficient model may come with a higher upfront cost but can lead to lower utility bills over time, especially for households with higher hot water demand.
Professional Consultation : The best way to plan your water heater replacement is with a professional consultation from AAA. They provide clear, written options for new water heaters so you understand the full scope of the work before moving forward.