Average Cost to install tankless hot water heater in the US

Updated 2025

Estimate Breakdown

Alert Add all required items to calculate the estimated cost for the completed work.
material
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Tankless Hot Water Heater (material) Info
$30.00 × 1 EA
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Installation Supplies Info
$30.00 × 1 EA
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labor
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Labor to Install Tankless Hot Water Heater Info
$30.00 × 1 HRS
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Demolish Existing Water Heater Info
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Finish Level Info
Project Size Info
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Contractor Markup: Info
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Avg. cost in United States $ 2,700.00
Avg. cost per EA: $225.05
Contractor Markup: $450.00
Alert The cost of installing a tankless hot water heater in United States, including materials and labor, ranges between $1116.00/EA and $2546.00/EA. The price depends on the type of tankless water heater (electric or gas), the level of finish, the complexity of the installation, and any necessary modifications to existing plumbing or electrical systems.
Estimate Assumptions The costs associated with installing a tankless hot water heater are influenced by various factors, including the type of heater selected (electric or gas), the complexity of the installation, and the level of finish desired. Additionally, any modifications required for existing plumbing or electrical systems can also impact the overall cost.
Project Timeline The timeline for installing a tankless hot water heater generally includes several phases: preparation, installation, and cleanup. Preparation may involve assessing the current plumbing and electrical systems, while installation encompasses the actual setup of the new unit. Finally, cleanup ensures that the work area is left tidy and free of debris.
Tankless Hot Water Heater: Comprehensive Guide for Residential Contractors Installing a tankless hot water heater is a significant upgrade for any home, providing on-demand hot water without the limitations of a storage tank. This project not only enhances energy efficiency but also ensures a continuous supply of hot water, which is particularly beneficial for larger households. The installation process requires careful consideration of materials and labor to ensure optimal performance and safety.
Best Practices To ensure a successful installation of a tankless hot water heater, it is essential to follow best practices such as verifying the compatibility of the new unit with existing plumbing and electrical systems. Safety measures should include turning off power and water supply before beginning work. Quality checks should be performed after installation to confirm that the unit operates correctly and efficiently.
Conclusion The installation of a tankless hot water heater is a valuable investment for homeowners seeking efficiency and convenience. By understanding the scope of the project and adhering to best practices, contractors can deliver high-quality results that enhance the functionality and comfort of the home.
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