How long does it take to replace a 40 gallon water heater?

Author: Asia Nolan  |  Last update: Friday, September 19, 2025

How long does it take to install a 40-gallon hot water heater? For tank-to-tank installation, anticipate up to three to four hours.

How long does it take to install a 40-gallon hot water heater?

Water Heater Installation

Installing a new water heater usually only takes 2 to 3 hours. Keep in mind that if you are switching from a tank water heater to a tankless water heater or vice versa, it could take a little longer.

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 long does it take for a 40-gallon water heater to recover?

For an average 40-gallon electric heater it will take about 60 to 80 minutes and for an 80-gallon tank about 2 hours.

How much does it cost to install a 40-gallon 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.

Replace Your Water Heater Yourself in 10 Easy Steps

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.

What is the life expectancy of a 40 gallon water heater?

Traditional Tank

The water is heated at least once a day to ensure a steady and ready supply of hot water. On average, these water heaters last between 8 to 12 years. They're often affected by sediment buildup. Annual flushing of the tank can help to extend a tanked water heater's lifespan.

How many showers can you take with a 40 gallon water heater?

For instance, a typical shower uses about 10 gallons of hot water. So, if you have a 40-gallon hot water tank, you should be able to get four average-length showers out of your hot water tank. This also depends on how much hot water you use for other things.

How much labor does it cost to replace a water heater?

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 to do after installing a new water heater?

What Next After a New Water Heater Installation?
  1. Step 1: Fill the Tank. The most important step is to fill the tank. ...
  2. Step 2: Run the Water. Once the water fills the tank, the next thing to do is to run the pipes to help clear unwanted debris from the system. ...
  3. Step 3: Monitor the Heater. ...
  4. Step 4: Maintenance.

How fast can a water heater be replaced?

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 much 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. 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.

Does Home Depot install water heaters?

SAME DAY WATER HEATER INSTALLATION

Our Licensed, Insured Pros Can Handle It. Call 1-855-650-2786 by Noon, Monday-Friday.

How long should I wait to run water after a new water heater?

How Long to Run Water After a New Water Heater? Once your new water heater is installed, it's vital to follow the proper procedure before using it to prevent potential issues. The initial step after installation is to run the water for approximately 10-15 minutes.

How long does it take to install a toilet?

Replacing a toilet is a straightforward task for a professional plumber. On average, it takes about two to three hours to remove the old toilet and install the new one.

Do you need a professional to install a hot water heater?

Ultimately, even if it saves you some money to try and install the water heater yourself, CNET recommends that you call an expert to do the job. "The best thing to do is to call a plumber," says Thompson.

How much does it cost to replace a 40 gallon water heater?

Standard 40-gallon water heaters range in price from $330 to $1,500 for the equipment alone, or from $500 to $2,500 when you add up the cost of installation.

How long does it take to replace and install a new water heater?

Typical Length of a Water Heater Replacement Appointment

In most common situations, it takes between two and four hours to install a new water heater. However, there are variables that can affect the length of time it takes.

Does home insurance cover a water heater?

It's important to note that standard homeowners insurance policies typically only cover damage to the structure of your home and personal property. They do not include replacement cost coverage for the heater itself.

How long should a 40 gallon water heater take to heat up?

40 gallons: 60-70 minutes. 50 gallons: 70-80 minutes.

What is a normal shower time?

The average shower lasts about eight minutes. If you're spending more than 15 minutes in the shower, you may need to make an adjustment. Dermatologists recommend keeping your showers between 5 and 10 minutes. This time period gives you enough time to properly clean your body without overdoing it.

Can a water heater last 40 years?

Believe it or not, there are still water heaters alive today that have been around for 30 to 40 years, though the vast majority are under 15 years.

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.

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.

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.

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