How often does a water heater need to be replaced?

Author: Francisco Jones  |  Last update: Friday, February 6, 2026

Water Heater Lifespan If your tank water heater is more than 10 years old, it may be time to consider replacing it. With proper maintenance, a tank water heater tank should last six to 12 years. A tankless water heater can last for more than 20 years. Check your water heater's warranty for the most accurate timelines.

How do you know when hot water heater needs to be replaced?

Common signs that it's time to replace your water heater include its age (usually 10-15 years), rusty or discolored water, strange noises, leaks or pooling water around the tank, and insufficient hot water supply.

Can a hot water heater last 20 years?

Yes, a water heater can last 20 years or more. Many water heaters made today are designed to last for decades if properly installed and maintained. Some homeowners have found that their units will often function well beyond the average life expectancy limits.

How do I know if my hot water heater is about to go out?

Water heaters show several signs of going bad, including lack of hot water, temperature fluctuations, decreased water pressure, strange noises, rotten egg smell, visible leaks, rusty or discolored water, and increased energy bills. If your water heater is over 10 years old, it may be time to consider a replacement.

Should I replace my 15 year old water heater?

It's generally a good idea to replace a water heater before it fails if it's reaching the end of its expected lifespan (usually around 10-15 years). Replacing it proactively can prevent potential water damage and inconvenience when it does fail.

Add 20 Extra Years To Your Water Heater & Get Rid Of Rotten Egg Smell!

Should I repair a 20 year old water heater?

A professional can sometimes repair these issues, but if your water heater is older, you'll need replacement. For example, a 20-year-old water heater is nearing the end of its service life and will need to be replaced even if repairs are possible.

Should I replace my water heater before it fails?

A Corroded Water Heater Could Cause Significant Damage

If the tank rusts through, it could fail catastrophically and flood your home. You can avoid this disaster by replacing your water heater before it fails.

How to tell if your anode rod is bad?

Poor water heater performance can sometimes stem from an anode rod that's overdue for replacement. If you notice signs of poor performance, such as discolored or rusty water, sulfuric or rotten egg smells, popping sounds from the tank, or high heating bills, inspect your water rod to determine if it needs replacement.

How do I check the health of my water heater?

Give Your Water Heater a Checkup
  1. Check your water heater's age. ...
  2. Test the pressure relief valve. ...
  3. Check for leaks. ...
  4. Flush the tank once per year. ...
  5. Check your pilot light. ...
  6. Get a yearly water heater inspection. ...
  7. Insulate your heater and pipes. ...
  8. Adjust your water heater's temperature.

How often should I flush my water heater?

Most homeowners should flush their water heaters every 6 months or so, but if you have extremely hard water, you may want to do it more often. Flushing your hot water heater could be necessary as often as every few months depending on the mineral content of your local water supply.

What shortens the life of a water heater?

Sediment can build up over time in a water heater, shortening its lifespan. To prevent this, you should flush your water heater at least once per year. Flushing will help to remove any sediment that has built up and improve the efficiency of your water heater.

Which water heater brand lasts the longest?

Bradford White water heaters are known for their durability and sturdy construction, providing lasting performance for years. In business since 1881, the company has a long reputation for selling quality products for both residential and commercial use.

How long does it take for a plumber to replace a hot water heater?

Once you decide to (or are forced to) replace your current water heater, there are a few decisions you need to make to get the process started. If there are no issues or complications, a licensed plumber should be able to complete the process in 2-3 hours.

How do I know if my water heater is dying?

If your water isn't quite as hot as it once was, and it feels lukewarm, it could mean that you need to replace your water heater. Pay attention to the water pressure as well – lukewarm water and low pressure water is a sign that your water heater needs replacing.

What maintenance does a water heater need?

Care for your unit by checking these common issues annually: Check for leaks. Flush the tank. Test the temperature and pressure relief valve.

How much does it cost to replace the anode rod in a water heater?

Anode Rod Replacement: While an anode rod costs between $20 and $50, a plumber can replace it for $50 to $150. The job typically takes about an hour. The anode rod protects the tank from corrosive materials and needs to be changed every few years. Water Heater Tank Flush: A water heater flush kit can cost around $150.

Can I replace an anode rod myself?

Most often, there will be a flexible connection from the hard plumbing to the anode's nipple. In this case, simply loosen the nut of the flex line attached to the nipple. You will then be able to remove this type of anode with a pipe wrench and replace the anode as described in the above instructions.

What is the life expectancy of the anode rod in a hot water heater?

However, most professionals recommend inspecting the anode rod every one to three years and replacing it every four to five years. If your water supply has a high mineral content or if your water heater usage is heavy, these timelines may need to be shortened.

How will I know if I need a new water heater?

You notice a difference in heating capacity

Over the years, that may slowly decrease until you might have a hard time taking a 10-minute shower. If your hot water runs out quickly, then you have a heating capacity problem. You might also find that it takes your water heater longer and longer to heat water up.

Why do most water heaters fail?

According to IBHS, 69% of water heater failures are a result of a slow leak or sudden burst, causing significant water damage. Not only are these claims frequent, but IBHS also estimates that they cost an average of $4,444 per claim.

Can a water heater last 15 years?

Electric water heaters are popular for their simplicity and safety. They generally last between 10 to 15 years. Regular electrical checks and element replacements can help maximize their lifespan.

Will a home warranty replace an old water heater?

The good news is that most standard home warranty plans will cover your water heater.

Should I replace a 7 year old water heater?

As a general rule, a conventional water heater with a tank will have an average lifespan of 8 to 10 years. They can even live up to 12 with a mixture of attentive maintenance and sheer good luck. However, serious dysfunction only becomes harder to avoid past the 6-year mark.

Should I flush a 15 year old water heater?

If neither you nor a professional have flushed your water within the last five years, Water Heaters Now recommends not flushing it yourself.

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