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Tankless Water
Heater Installation

Same Day Install

We offer same-day tankless water heater installation if you call us before noon and with same-day delivery within 30 miles of your local Home Depot store location.

Trusted Installers

All Home Depot tankless water heater installers are handpicked, licensed and insured, and have been background checked before conducting a free consultation.

Flexible Financing

We offer a wide range of flexible financing options to jump-start your on-demand water heater project including Home Depot’s Consumer Credit Card and Project Loan, plus one competitive price on any tankless water heater installation.

Why choose Tankless Water Heater Installation?

Tankless water heaters have lower operating costs, use less space, and can reduce energy consumption by as much as 30 to 40 percent. It can also provide hot water on demand at a precise temperature.

Tankless Water Heater Installation
Ratings and Reviews

Read reviews from customers just like you.

  • Overall Rating
481 Reviews
425 out of 481 (88%) reviewers recommend this service.
  • Overall
  • Customer service

Water heater running fine

The water heater was installed in less than two hours. The area was cleaned up and the old heater removed without any leakage from the basement to outside.

Yes, I recommend this service Verified Install


Review by

southern Indiana
  • Overall
  • Customer service

Efficient, effective, good job.

The installers seemed professional. They were in and out in a short time, about and hour, less than two hours. Job looked good, they could have cleaned up the job site better but it was OK

Yes, I recommend this service Verified Install


Review by

Pasadena, CA, USA
  • Overall
  • Customer service

Great installation and completion in no time!

They came and removed the old water heater in less than 30 mins and installed the new one in 1.5 hours. Everything works great and the water is hot again!

Yes, I recommend this service Verified Install


Review by


  • Overall
  • Customer service

Professional install and clean

Customer Service good. Missing point: No help or guidance regarding city permitting process Install Service good. Missing point: No drip pans installed on either of my two water heaters Price very good. Received bids which were almost double with less warranty (10 instead of your 12 years)

Yes, I recommend this service Verified Install


Review by

Denver, CO
  • Overall
  • Customer service

Of course it cost more for install that expected... but all good

The space for our HW heater was too small for the larger, longer warranty model, so we got the less expensive one.... but of course the addl. work that needed to be done brought the price up to what we were planning to spend on the better model... all good I guess.

Yes, I recommend this service Verified Install


Review by


Home Depot Service Provider Licensing and/or Registration Information

Home Depot local Service Providers are background checked, insured, licensed and/or registered. License or registration numbers held by or on behalf of Home Depot U.S.A., Inc. are available here or at the Special Services Desk in The Home Depot store. State specific licensing information includes: AL 03010, AK 25084, AZ ROC252435 ROC092581, CA 602331, FL EC00001440 CGC1514813 CAC1813767 CFC1426021, GA EN216765 CT22120 LMP2977, MA 112785, MI 2101089942, NV 38686, OK 9190, OR 95843, RI 9480, TX TECL24447 TALCA-1574 M-16451, WA HOMED088RH, WV WV036104.


Frequently Asked Questions

Answers to common tankless, on demand hot water heater installation questions

What is a tankless water heater?

Tankless water heaters raise cold water to the temperature you've digitally set when your demand for hot water passes either a gas burner or electric element. While a conventional tank-style water heater stores hot water and heats it 24/7 whether you use it or not, a tankless water heater only heats water on demand, making it more energy efficient.

What are the advantages of a tankless water heater?

A tankless water heater has lower operating costs, uses less space and can reduce energy consumption by as much as 30 to 40 percent. It also provides hot water on demand at a precise temperature for long periods of time. However, tankless water heater installation does require more of an up front investment, may need venting and is not ideal for heavy usage. On the other hand, a conventional tank constantly heats stored water, is good for high usage demands, and is economical. It can be stored in a closet, basement or garage and has a capacity ranging from 20 to 80 gallons.

How much does tankless water heater installation cost?

Generally, a tankless water heater will cost about two to two and a half times as much as a standard water heater to purchase and install. Factored into that price are the higher production cost for the unit, venting and the gas line and gas meter resizing required to support the unit's demands. However, you'll have lower operating costs, more useable square footage and you may be eligible for federal or local tax incentives and credits.

Can a tankless unit be installed in the same place as my old water heater?

As long as enough combustion air is provided, tankless water heaters can be installed in a utility room, garage, basement, attic, or placed on an outside wall. Plus, they may be installed in locations where a storage water heater may not fit, like bedrooms or bathrooms. The digital temperature controller may be mounted in any room.

How much can I expect to save on my monthly bill if I get a tankless water heater installed?

Test results have shown that a tankless gas water heater costs about 30% less to operate than an electric water heater and about 20-30% less than a natural gas water heater. Note: There is no guarantee that you will achieve these exact cost savings as many factors go into the efficiency of water heaters, including your usage and behavior. Tankless units do carry a much higher Energy Factor, meaning a larger percentage of the energy you use will be directly transferred to heating your water. A tankless water heater has no standing pilot light, no standby loss and burners that modulate to maintain maximum efficiency.

Tankless Water Heater Installation

Tankless water heaters (also known as on-demand water heaters) heat water directly without the use of a storage tank. Typically, tankless water heaters provide hot water at a rate of 2 to 5 gallons (7.6 to 15.2 liters) per minute, and gas-fired tankless water heaters produce higher flow rates than electric ones. By only heating water on demand, these units can produce energy and cost savings over time.

Upgrading your water heater system to a tankless, on-demand system can offer numerous advantages and benefits. They are 24 to 34 percent more energy efficient than conventional water heaters, they can last for 20 years or more, near twice that of standard water heaters, and they feature a compact, space-saving, wall-mounted design.

Although the initial cost of a tankless water heater with installation is greater than that of a conventional hot water heater, lower operating and energy costs could offset the higher purchase price. ENERGY STAR® estimates that a typical family can save $100 or more per year with an ENERGY STAR qualified tankless water heater.

You may also qualify for incentives offered by your local utility company or benefit from state tax credits.

Proper installation and maintenance of your tankless water heater will optimize its energy efficiency, and you can trust The Home Depot’s professional, licensed and insured service providers to do the job right. Schedule an in-home consultation today and let us show you how to save more energy and money with the installation of a tankless water heater.

The Home Depot Credit Options

The Home Depot Consumer Credit Card offers no annual fee, everyday special financing and exclusive Home Depot benefits. There's also The Home Depot Project Loan. It offers affordable fixed monthly payments, a 12-month purchasing window and no prepayment penalty.

Extended Service Agreement

Installation services are backed by a 1-year parts and labor warranty, along with manufacturer guarantees. We also offer an Extended Service Agreement that protects your HVAC system up to 10 years. For more information about The Home Depot Extended Service Agreement, call 866-413-8201.