Home Services Tankless Water Heater Maintenance

Professional Tankless Water Heater Maintenance in the Bay Area and Sacramento

Tankless water heaters provide superior efficiency and endless hot water, but their complex heat exchangers are highly susceptible to mineral buildup, especially in hard water areas. Annual professional maintenance, primarily descaling and flushing, is not optional, it is mandatory to preserve the unit’s efficiency, prevent costly breakdowns, and keep the manufacturer’s warranty valid. Our specialized service ensures your unit performs at peak efficiency year-round.

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Our Specialized Tankless Water Heater Maintenance Process

Our maintenance service is a comprehensive, multi-point inspection and descaling procedure designed to maximize your unit’s lifespan and efficiency.

Step 1: Safety and System Assessment

We begin with a thorough visual inspection of the unit, checking all gas and water connections, venting, and the critical temperature and pressure (T&P) relief valve. We read the unit’s error codes and perform a flow rate test to establish a baseline for performance.

Step 2: Precision Descaling and Flushing

This is the most critical step. We isolate the unit using the maintenance isolation valves and circulate a specialized, non-toxic descaling solution through the heat exchanger. This process safely dissolves mineral and sediment buildup, restoring the unit’s ability to heat water efficiently.

Step 3: Component Cleaning and Optimization

We clean the inlet filter, check and clean the igniter and flame sensor, and inspect the burner assembly. We also verify the gas pressure and adjust the temperature settings to ensure optimal performance and safety.

Step 4: Final Verification and Report

We flush the system with fresh water, restore normal operation, and perform a final flow and temperature test. We provide a detailed report on the unit’s condition, including recommendations for any necessary Tankless Water Heater Repair and a reminder for your next annual service. We also discuss the long-term viability of the unit versus Tankless Water Heater Replacement.

Tankless Water Heater Maintenance FAQ

Why is annual descaling and flushing mandatory for tankless water heaters?

Descaling is mandatory because mineral deposits (limescale) from hard water accumulate rapidly in the narrow passages of the heat exchanger. This buildup drastically reduces efficiency, causes inconsistent temperatures, and can lead to permanent damage that requires a full unit replacement.
How often should I schedule professional tankless water heater maintenance?

Manufacturers and plumbing experts recommend scheduling professional maintenance, including descaling and flushing, at least once per year. In areas with extremely hard water, a bi-annual service may be necessary to prevent buildup.
What happens if I skip the annual maintenance on my tankless unit?

Skipping maintenance will lead to a voided manufacturer’s warranty, a significant drop in energy efficiency (higher utility bills), inconsistent hot water, and eventually, a complete unit failure due to a clogged or damaged heat exchanger.
Can I perform the descaling process myself?

While the descaling process is technically possible for a homeowner, it is strongly recommended to use a professional. Improper flushing can damage the heat exchanger, and a professional ensures the correct descaling solution is used, all safety checks are performed, and the unit’s warranty remains valid.
Does tankless water heater maintenance save me money?

Yes. Maintenance directly saves money in two ways: Lower utility bills (a clean heat exchanger uses less energy) and avoiding costly repairs or premature replacement (maintenance prevents the most common causes of failure).

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