Water Heater Maintenance Cost Calculator
Find out what annual maintenance costs for your water heater — with a 5-year cost projection.
How It Works
Select water heater type
Tank and tankless models have different maintenance needs and costs.
Enter age and condition
Older units with sediment buildup or anode rod neglect cost more to maintain.
Get 5-year cost projection
See annual maintenance cost, 5-year total, and replacement timing recommendation.
Frequently Asked Questions
How much does water heater maintenance cost?
Annual water heater maintenance typically costs $300–$700 for a full service visit including tank flush, anode rod inspection, T&P valve test, and thermostat check. Hard water areas and older units cost more.
How often should you flush a water heater?
You should flush your water heater at least once per year to remove sediment buildup. In areas with hard water, flushing twice a year is recommended to maintain efficiency and extend the unit's lifespan.
How long does a water heater anode rod last?
Anode rods typically last 3–5 years. They should be inspected annually and replaced before they are fully depleted. Replacing an anode rod costs $120–$200 and is one of the most effective ways to extend tank life.
Ready to get your estimate?
Answer 5 quick questions and see your personalized maintenance cost.
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