Water Heater Replacement Cost Guides

Jessica Martinez
By Jessica Martinez, home improvement cost analyst
Updated 2026-07-09

Nine guides, organized by the decision each one actually answers: what to expect, which type to buy, which size fits, and when to call someone. Start with the calculator if you just want a number.

Water Heater Replacement Cost in 2026The full price breakdown by type, with what actually moves the number.Tankless vs TankUpfront cost against 20-year ownership math, worked out both ways.Gas vs ElectricWhich fuel type actually costs less to run where you live.Water Heater Cost by Size40, 50, and 80 gallon compared, plus the sizing math.7 Signs You Need a ReplacementHow to tell a repairable problem from a countdown.How Long Water Heaters Actually LastLifespan by type and the maintenance that extends it.Cost by BrandRheem, AO Smith, and Bradford White, priced and compared.Labor Cost to InstallWhat a plumber's hourly rate actually buys you.Home Depot Installation CostBig-box pricing against an independent plumber, worked out.