Water Heater at 10+ Years: The #1 Most Common Inspection Flag

1. The Silent Failure of Internal Anode Rods

Tank water heaters utilize sacrificial magnesium or aluminum anode rods to protect the steel tank from corrosive mineral attack. Once the anode rod is fully depleted (typically within 5–7 years), the steel tank begins to corrode directly.

Once a tank springs a leak, it cannot be repaired — it must be replaced immediately to prevent catastrophic basement or floor flooding.

2. Budgeting for Replacement ($1,500–$3,400)

Standard 50-gallon atmospheric gas or electric replacements range between $1,500 and $2,400 including expansion tanks and code updates. High-efficiency hybrid heat pump units may cost $2,800 to $3,500 but offer substantial energy bill savings.