How much does tankless water heater installation cost at Home Depot?

Tankless Water Heater Installation Cost

Average Total: $3,500

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New Tankless Water Heater and Installation Costs

Nationwide prices generally fall within the range of $1,200 to $5,000. Our overall estimate includes the following:

  • Tankless water heater
  • Installation labor by a local, licensed and insured plumber
  • Removal of the old unit
  • Permits
  • Installation materials

How Different Features Impact the Cost

The cost of installing an entirely new water heater could increase if you alter fuel sources or change from a tank-type water heater to a tankless unit.

To minimize the additional cost, Our trusted experts will review your options and suggest that you install the tankless unit close to existing fuel and water sources.

This will allow for better ventilation and cut down on the amount of additional work required. There is a myriad of other factors that impact the cost of construction:

  • The cost of the permit
  • The length of the warranty
  • Energy efficient certification and other special features on the new unit
  • The amount of work required to bring your plumbing connections up to code
  • The size of your new water heater (measured in gallons)

Other upfront costs can also be charged in a tankless model with top features and a higher efficiency model. Gas heaters are typically cheaper than electric ones to operate.

Energy Efficiency and Money Saving

Installing tank-free water heaters is a more substantial initial investment; however, the units can dramatically reduce the monthly costs of utility bills.

The U.S. Department of Energy estimates that for homes that use at least 41 gals of hot water, tankless on-demand heaters can save anywhere from 24% and 34 per cent more energy than tank water heaters.

How much does tankless water heater installation cost?

The general rule is that buying and installing tanks-free water heaters cost approximately 2 to 2.5 times more than an ordinary water heater because of the increased production costs associated with the system, venting and the resizing of your gas line as well as the gas meter to meet the demand of the unit.

However, after installing the tankless water heater, you’ll enjoy lower operating expenses and more usable space. You might be qualified for federal or local tax incentives and tax credits.

The results of tests have proven that tanks-less gas water heaters cost around 30-40% less to run than an electric heater and approximately 20-30 percent less than a traditional propane water heater. There is, however, no guarantee that you’ll be able to achieve the exact savings as many variables affect the effectiveness of these units.

Visit the Home Depot water heater installation cost guide to learn more.

How It Works

Set up a free consultation

Contact us if you’re considering a tankless water heater by making an appointment for a no-cost consultation at home. We’ll arrange for our authorized local service provider to call you. They’ll ask a few questions about the current setup of your water heater and then schedule a time for your appointment.

Get recommendations from a local pro

During the meeting, the service provider will evaluate the current configuration of your water heater to determine the possibility of a tankless system being a good fit for your space. They will also consider the best option for your budget and preferences. Additionally, you’ll receive an estimate of the cost and financing options.

Enjoy full-service installation

Once you’re done to go, we’ll set a suitable time to install your tankless heater. We’ll test and examine the new heater and remove the old one.

What’s included in a tankless water heater installation?

A tankless system consists of:

  • The delivery of your new water heater as well as the removal of your old one
  • Remove and disconnect the existing water heater.
  • Check the pressure of the water before installation. Insufficient or excessive pressure could damage the tankless heater or stop it from supplying a steady flow.
  • Cycle test and leak test your brand new water heater
  • Final inspection and walkthrough with care and maintenance instructions as well as the test to confirm the proper operation.
  • Installation of your tankless tanker. Charges could apply for the conversion of venting or connections to the new heater from the old one.
  • Final cleanup of all installation debris


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