Average Cost to Replace a Water Heater. On average, homeowners across the US are paying $ , to install a new water heater including device and labor . Such high variation in price depends of the type of heater installed tank vs. tankless , heater size capacity , , gallons , power type gas, electric, solar ..For a basic project in zip code heater, the cost to Replace a Water Heater starts at $, $, per heater..An electric water heater can cost $ $, or more for complete installation of a conventional storage tank and $, $, or more for a tankless including a V V outlet . Electric water heaters typi.y cost less than gas units but are more expensive to operate..A conventional storage tank water heater has a life of about years, so if your unit is in that age range, it may be worth footing the cost to replace a water heater it rather than constantly fixing problems as they arise with age. However, if your water heater is only a few years old, repair may be the best way to go..
Tank vs. Tankless. Average cost with installation Tank $. gallon tank Tankless $, .