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

Author: Jimmie Metz  |  Last update: Monday, September 29, 2025

Tank to Tank Installation: On average, replacing a gas or electric water tank with a similar model takes two to three hours. It takes between 45 to 60 minutes to drain, disconnect and remove your old water heater.

How long does it take to remove and 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.

What is the average labor cost to replace a hot water tank?

In general, plumbers cost $45 to $200 per hour, while electricians cost $50 to $100 per hour. Expect the following average price ranges for labor alone: Replacing a tank-style water heater: $150–$450. Replacing a tankless water heater: $600–$1,850.

What are signs your water heater is 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.

Does a plumber have to replace a hot water heater?

It is legal for you to install a water heater yourself or to use an unlicensed plumber to install it. However, it's not a good idea. First of all, you will still need to pull a permit and have the installation inspected no matter who does the work.

How long does it take for a water heater to heat up?

Who is the best person to replace a water heater?

However, we strongly recommend hiring a licensed plumber or water heater installer to handle the work. Licensed installers are far less likely to make a mistake during the installation, which means paying for the experience decreases your risk of a leak and other issues.

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.

What is the life expectancy of a hot water tank?

If your water heater is more than 10 years old, it's probably reaching the end of its lifespan. Most conventional electric hot water tanks will last 10-15 years maximum. Gas-powered hot water tanks usually breakdown after 8-10 years, while tankless water heaters can last over 15 years with regular maintenance.

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 much should I spend on a water heater?

Naturally, tanks that heat more gallons of water typically have a higher price point, so the larger the tank size, the more you can expect to pay. For example, the average 40-gallon water heater installation cost runs between $1,000 and $2,500, while its 80-gallon counterpart runs between $2,650 and $3,910.

Why is installing a water heater so expensive?

Newer models require specialized tools and training to install, and the associated labor costs can add up quickly, making the total cost of the water heater higher than you expected.

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 replace a water heater myself?

In short: Yes, you can install a water heater on your own. There are, however, a lot of things to take into consideration. For one, you need to know what you're doing, and you need to have the proper paperwork or permits to do it.

Do you need to shut off the water when replacing water heater?

In certain circumstances, like if you have a leak or need to repair or replace your water heater, you must turn off the water before doing so, else you risk a flood.

How much does it cost to remove and replace a 50 gallon water heater?

The average cost to replace a 50-gallon water heater is $700 to $1,800 for an electric unit or $1,000 to $3,100+ for a gas unit, including labor. A 50-gallon water heater costs $500 to $2,100 for the unit alone, depending on the fuel type, energy efficiency, features, and brand.

Who checks hot water heaters?

The short answer is that plumbers typically service water heaters, whether it's gas or electric. An electrician may also be able to fix an electric hot water heater, assuming the problem is electrical. Maybe you're wondering if you can DIY the solution or if you need to call a water heater pro.

What happens to a water heater when the anode rod goes bad?

If your tank-style water heater can't maintain a steady supply of hot water, it might indicate the rod is bad. A deteriorating anode rod cannot manage the electrolysis process in the tank effectively, causing uneven heating of the cold water entering the tank.

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.

Do you have to drain tank to replace anode rod?

Note: If your anode rod is on the top of the heater, you will only need to allow the tank to drain about a quart or 1/2 a gallon of water. If the anode is located on the side, drain the tank until the water is below the anode rod port.

What is the most reliable brand of hot water heater?

The Lifestory Research 2024 America's Most Trusted® Water Heater ranking is based on 6,547 opinions of people surveyed in the United States over the last 12 months. The most trusted water heater brands in order were Bosch, Whirlpool, Rheem, GE, Kenmore, AO Smith, Ruud, Bradford White, and Rinnai.

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.

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

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 long does it take a plumber to replace a water heater?

For a standard water heater replacement, installation usually takes between 2 to 3 hours. The technicians will remove the old unit, install the new one, and ensure everything is connected and working perfectly.

Are tankless water heaters worth it?

Advantages and Disadvantages of Tankless Water Heaters

The initial cost of a tankless water heater is greater than that of a conventional storage water heater, but tankless water heaters will typically last longer and have lower operating and energy costs, which could offset their higher purchase price.

What does Lowe's charge to install a 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. Once you purchase the project, a trusted independent installer will contact you to schedule your installation.

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