How do I check the health of my water heater?

Author: Miss Kitty Blanda Jr.  |  Last update: Wednesday, November 19, 2025

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 signs of a 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.

How do I know if my water heater needs replacing?

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 is the normal life expectancy of a 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.

How do you inspect your water heater?

Annual Professional Water Heater Inspection Checklist
  1. Perform visual inspection for leaks, damage, or corrosion.
  2. Test the pressure relief valve (TPR valve).
  3. Check for hidden leaks that are not easily visible.
  4. Flush the tank.
  5. Inspect the anode rod.
  6. Check the gas line for gas heaters.

How To Check Your Water Heater Age - Ace Hardware

How to check the health of a 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.

Do plumbers inspect water heaters?

Water heater - The plumber will inspect the water heater installation, flue pipes, safety valves, energy efficiency, leaks, corrosion and signs of rust/damage. Gas lines - If you have natural gas service, the plumber will check gas pipes for leaks using a sniffer device.

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.

Is a 20 year old water heater bad?

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.

Is there a way to test a water heater?

Disconnect two wires from top element. Check continuity of element with ohm meter from terminal to terminal (should read around 13 ohms). Check continuity from each terminal to metal tank (should read 0 ohms - anything else and the element needs to be replaced). Check lower element the same way as the top element.

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 long does it take a plumber to replace a 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 to tell if a water heater needs replacing?

Signs a Water Heater is Going Bad
  1. Your Water Heater Makes Strange Noises. ...
  2. Decreased or Varying Water Temperature. ...
  3. Low Water Pressure. ...
  4. Discolored or Rusty Water. ...
  5. Hot Water Shortage. ...
  6. Water Heater Leaks. ...
  7. Frequent Repairs. ...
  8. Age of Hot Water Heater.

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.

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.

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.

Can you replace a water heater yourself?

Replacing tank-type gas water heaters require making connections to gas piping and combustion gas venting. Unless you are very familiar with how to make gas line connections and work with vent connections, we highly recommend calling a professional plumber to do this work.

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.

Can I flush my water heater myself?

You can flush your water heater yourself if it's done on a regular basis. This guide will take you through the steps to drain and flush a gas or electric water heater. Learning how to clean a water heater is an essential part of maintaining your plumbing system.

How much does a plumber charge to flush a water heater?

The national average cost to flush a water heater is $160, but prices can vary in increments based on the tank size. A 30-gallon tank will cost between $90 and $120 on average, while a 70-gallon tank could cost anywhere between $180 and $250.

How often should I replace the anode rod in my water heater?

In other words, it “sacrifices” itself to extend the life of the water heater. Most water heater manufacturers will recommend inspecting the condition of the sacrificial anode every one (1) to three (3) years and replacing it when it has been consumed more than 50%.

Who would I call to check my water heater?

Well, it depends on the issue. But for the most part, you should call a licensed plumber for all hot water heater problems.

How much does it cost for a plumber to check a water heater?

If so, you're probably wondering how much a maintenance visit will cost you. The cost of water heater maintenance ranges from $75 to $300+, depending on the following factors: What the plumber checks during a maintenance visit. Whether you choose a single visit or an annual maintenance plan.

Should I buy a water heater from a plumber?

Water Heater Quality

The units available at a retail store or online typically are not the same as those sold through a local plumber. Low retail prices are often possible due to lower product quality and the use of less durable components.

Previous article
What is the 333 rule for clothes?
Next article
What would cause a furnace to not shut off?