How do I know when my hot water heater needs replacing?

Author: Miss Rita Rogahn  |  Last update: Saturday, November 8, 2025

6 Signs It's Time to Replace Your Water Heater
  1. If your Water Heater is 10 years old or Showing Signs of Age. ...
  2. You are Experiencing Discoloured Water. ...
  3. Your Water Heater makes Unusual Noises. ...
  4. The Hot Water Tank is Leaking. ...
  5. There is Inadequate Heating. ...
  6. There is Sediment or Sand Build Up in your Water Heater Tank.

How do I know if I need a new hot water heater?

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.

What are signs of a hot water heater going bad?

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.

What is the life expectancy of a hot water heater?

While today's water heaters are better designed than older models, they still require regular maintenance in order to prolong their lives. With regular inspection, draining, and flushing, you can expect a gas water heater to last anywhere from 8-12 years and an electric water heater to last anywhere from 10-15 years.

When should a hot water heater be replaced?

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.

Signs Your Water Heater Needs to be Replaced

How often should a water heater be flushed?

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 happens before a hot water heater goes out?

A water heater making strange noises could be a sign that the unit is beginning to fail. These sounds may include popping, banging, or even rumbling. Hot water heater noises are usually caused by sediment build-up on the bottom of the tank. When this happens, it can cause the unit to overheat and eventually fail.

How do I know if my water heater is end of life?

It just isn't producing as much hot water anymore. 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 brand water heaters last 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 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.

What are the red flags on a water heater?

A faulty pressure relief valve, cloudy water, popping noises, and a lack of hot water are other potentially dangerous signs. If you see water leakage, contact a plumbing professional right away to detect the problems with your water heating system.

When should I worry about my water heater?

If you suspect your water heater is more than 10 years old—it is time to consider replacing it before you're left with an emergency decision. To determine the age of your water heater, you'll need to identify the Brand Name and Serial Number for your unit.

How can I tell if my water heater is bad?

Signs Your Hot Water Heater Is Going to Fail
  1. Water leaking from the heating tank. ...
  2. Age of the water heater. ...
  3. Running out of hot water quickly. ...
  4. Inconsistent water temperature in the shower. ...
  5. Discolored water coming from faucets. ...
  6. Unusual noises coming from the water heater. ...
  7. Lower water pressure.

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.

Should I flush a 7 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.

How do I know if my water heater needs to be drained?

Here are a few warning signs that you need a water heater flush.
  • No Hot Water. When your unit stops producing hot water, there is either a large amount of sediment buildup or a faulty burner. ...
  • Funny Smells. Strange odors from your hot water is a sign of bacteria in your tank. ...
  • Strange Noises. ...
  • Rust Colored Water.

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

If your hot water is no longer coming out hot or is only hot some of the time, it may be time to replace the heater. Sometimes the devices and mechanisms inside will wear down or break, causing your heater to stop heating. In some cases, this may require a simple repair.

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.

Why do plumbers charge so much to replace water heater?

This is because the process of installing a new water heater can be quite complex and often requires the use of special tools and equipment. Additionally, the cost of labor for this type of project can be quite high.

Does Home Depot install water heaters?

The Home Depot partners with local, licensed and insured professionals to help homeowners choose the right water heater for their home. If you live within 30 miles of a Home Depot store and call us before noon at 1-800-HOME-DEPOT, our team offers same-day installation.

How much does Lowe's charge to install a hot water heater?

The price depends on whether you want an electric or gas water heater. The basic installation fee at Lowe's is around $320. But, before the contractor can set up the heater, they'll need to come to your home to check the conditions and determine the best location for it. This inspection will cost you an additional $34.

How do you know if your water heater is about to burst?

7 Warning Signs of Water Heater Explosion
  • Leaking Pressure Relief Valve. ...
  • A Consistent Popping Noise. ...
  • Rotten Egg Odor. ...
  • Brown Water. ...
  • Gas Leak. ...
  • Improper Bad Installation. ...
  • Neglecting Routine Maintenance.

How do you know if your anode rod is bad?

Top 3 Signs of Anode Rod Failure
  • Rusty or Disintegrating Anode Rod. Regular inspection of the anode rod is crucial to identifying signs of failure. ...
  • Foul Smell or Discolored Water. Another sign of anode rod failure is foul-smelling water or discolored water, often appearing brownish or rusty. ...
  • Noisy Water Heater.

What are the symptoms of a bad thermostat on a hot water heater?

Signs Your Water Heater Thermostat Is Faulty
  • You have no hot water.
  • You're running out of hot water quickly.
  • The water is too hot.
  • It takes a long time for your water heater to heat the water.
  • You keep having to reset the high-temperature limit switch.

Previous article
Which AC gives a 5 year warranty?
Next article
Can you dry different types of clothes together?