How much does tankless water heater cost?
A tankless (on-demand) heater saves space and never runs out of hot water, but costs more up front — especially if gas lines or venting need upgrading.
| Typical range | $1,000 – $4,500 |
| Most common | $2,300 |
| Priced | installed |
| DIY-friendly? | No — best left to a licensed pro |
What changes the price of tankless water heater
- Gas vs. electric
- Gas line and venting upgrades
- Whole-home vs. point-of-use
- Converting from an existing tank
Estimate your cost
Adjust the quality and scope, or compare with other projects.
Full typical range for this project. Adjust the quality/scope for a tighter estimate. The only way to know your real price is to get quotes from local contractors.
- ›Gas vs. electric
- ›Gas line and venting upgrades
- ›Whole-home vs. point-of-use
- ›Converting from an existing tank
National ballpark ranges for the US. Not a quote — actual prices vary by region, home and contractor.
Tankless water heater cost — frequently asked questions
How much does it cost to install a tankless water heater?
A tankless water heater runs about $1,000–$4,500 installed, around $2,300 typical. Gas models needing new venting or a bigger gas line cost the most.
Related project costs
This is general US cost information, not a quote. Actual prices depend on your region, home, materials and contractor — always get quotes from licensed local pros before you commit.