How Often Should a Water Heater Be Serviced?

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Residential Water Heater and Tool Box

How Often Should a Water Heater Be Serviced?

Water heaters are an essential component of any household, providing hot water for everything from daily showers to dishwashing and more. However, like any appliance, a water heater requires regular maintenance to operate efficiently and effectively. If you’ve ever wondered “how often should a water heater be serviced?” or “do water heaters need maintenance?” you’re not alone. In this blog post, we will explore the importance of water heater maintenance and provide you with a maintenance schedule to keep your unit in top condition.

Importance of Regular Water Heater Maintenance

Regular maintenance of your water heater is crucial for several reasons. First and foremost, it helps extend the lifespan of the unit. Water heaters, particularly tank models, can accumulate sediment that can lead to corrosion and inefficiency over time. Regular servicing helps catch and rectify these issues early, thereby preventing premature failure.

Additionally, a well-maintained water heater operates more efficiently. This not only ensures that you have hot water when you need it but also reduces energy consumption, which can lead to lower utility bills. Maintenance also ensures safety, as a faulty water heater can pose risks such as water leaks, scalding temperatures, or even carbon monoxide poisoning if not properly inspected and maintained.

How Often to Service Water Heater

The frequency of water heater maintenance can vary depending on the model and your local water quality. However, most experts agree that a water heater should be serviced at least once a year. This annual service should include a comprehensive check of the anode rod, thermostat, heating elements, and pressure relief valve. Additionally, flushing the tank to remove sediment buildup is crucial for preventing corrosion and maintaining efficiency.

Detailed Water Heater Maintenance Schedule

To ensure your water heater remains in optimal condition, follow this detailed maintenance schedule:


Check for any signs of leakage or corrosion around the water heater. Inspecting your unit regularly helps you catch issues before they become major problems.


Perform a full service, which includes:

  • Testing the pressure relief valve to ensure it is operating correctly. This valve helps protect your water heater from excess pressure and should release water when lifted.
  • Flushing the tank to remove sediment. This is particularly important in areas with hard water.
  • Inspecting the anode rod, which protects the tank from corrosion. Replace it if more than 6 inches of core wire is exposed or if it’s coated with calcium.
  • Checking and adjusting the thermostat to ensure it is set at the recommended temperature, usually around 120 degrees Fahrenheit, to prevent scalding and maximize energy efficiency.
  • Examining heating elements on electric water heaters or the burner assembly on gas water heaters for any signs of wear or damage.

Do Water Heaters Need Maintenance?

The simple answer is yes, water heaters need regular maintenance to ensure they operate safely and efficiently. Neglecting water heater maintenance can lead to a variety of problems, from inconsistent hot water to total system failures, which are both inconvenient and expensive to repair.

Signs You May Need to Service Your Water Heater Sooner

While the general recommendation is annual servicing, certain signs might indicate the need for more frequent checks:

  • Reduction in water temperature
  • Popping or rumbling noises coming from the tank
  • Cloudy or rusty water
  • Water leaking around the base of the heater

If you notice any of these symptoms, it’s advisable to contact a professional for an inspection.

Choosing a Professional for Water Heater Maintenance

When it comes to servicing your water heater, it’s important to choose the right professionals. Absolute Plumbing is your trusted partner in ensuring that your water heating system is in perfect condition. Our team of certified plumbers has extensive experience in water heater maintenance and can help extend the life of your unit while ensuring it operates at peak efficiency.


Maintaining your water heater is not just about fulfilling a maintenance schedule; it’s about ensuring safety, efficiency, and reliability. Remember, regular checks and servicing can prevent costly repairs and extend the life of your water heater. Whether you need routine maintenance or suspect a problem with your water heating system, Absolute Plumbing is here to help.

If you have any concerns about your water heater or wish to schedule a maintenance visit, contact Absolute Plumbing today for all your plumbing needs. We ensure that your water heater runs smoothly, providing you with peace of mind and the comfort of consistent hot water. Call us or visit our website to learn more about our services and how we can assist you in maintaining a healthy, efficient home plumbing system.