Cost to Install a Tankless Water Heater
A plumber will charge $1,110 to install a tankless water heater vs. doing it yourself for $750. Enter your ZIP Code and adjust the improvement and repair cost for where you live.
National Average Improvement and Repair Cost Click to Adjust Cost to Your ZIP Code.
Hours Pro 3.9 Diy 5.0 Money Pro $1110 Diy $750
Cost to Install a Tankless Water Heater
Cost to Install a Tankless Water Heater
A plumber will charge $1,110 to install a tankless water heater vs. doing it yourself for $750. Enter your ZIP Code and adjust the improvement and repair cost for where you live.
National Average Improvement and Repair Cost
Hours Pro 3.9 Diy 5.0
Money Pro $1110 Diy $750
Click to Adjust Cost to Your ZIP Code.
By Gene and Katie Hamilton

Hmmm. What's a tankless water heater you're wondering? Simply, it is a hot water heater that heats water as you use it, giving you an endless supply of hot water, instead of heating and storing water like a traditional tank unit does. While the tankless units have been popular in Europe and Asia for years, they're only recently making their way into U.S. homes. Compared with a traditional gas hot water heater, a tankless unit is considered safer and more economical to operate because there is no pilot light and the unit only runs when the system is used so you can expect a lower gas bill. For a small home, there's an added bonus - no bulky tank.

DIY Hassle AlertDIY Hassle Alert

Installing a tankless water heater is similar to installing a regular gas water heater; you'll connect to a gas line, water line and vent, but the tankless system also has an electrical connection to power the computer and venting system. If you put the new tankless unit in the same space as an old gas tank water heater, you don't have to redo any plumbing lines. A plumber will charge $1,110 to replace a traditional gas water heater with a new tankless unit like the Takagi T-KJr, which can produce 180 gallons of hot water per hour. In home centers, you'll find other units designed for do-it-yourselfers. We, however, suggest that even though you can save about 32 precent by doing it yourself leave this job to the professionals.

Now you know the average cost to install a tankless water heater, which includes the labor and material, and what’s involved, so you can decide to do it yourself or hire a contractor. Don’t forget to adjust the cost to where you live by adding your ZIP Code.

Improvement and Repair Cost Updated 2016

The cost and time data is generated by averaging labor and material data from annually updated cost books used by contractors and refined by the authors' experience remodeling 13 houses. They are authors of 20 home improvement books and Do It Yourself or Not, a weekly column syndicated by Tribune Content Agency. The national cost can be adjusted by ZIP Code.

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