toDateCheck your quote
toDate › Estimate › Washington

How much does install a tankless water heater cost in Washington?

Install a Tankless Water Heater in Washington typically runs $1,892–$4,136 — a modeled estimate from local labor rates and material prices. A reference, not a quote.

Modeled estimate
$1,892–$4,136
Install a Tankless Water Heater · Washington
Labor$327–$1,096
Water Heater - Tankless (gas)$1,500–$1,500
Shut-off Valve (quarter turn)$30–$45
Copper Pipe 1/2"$35–$105
Labor rate: BLS OEWS May 2023 — Washington-Arlington-Alexandria, DC-VA-MD-WV
A modeled estimate from local labor rates and material prices — it sharpens as neighbors share real quotes.
Got a quote? Check if it's fair Configure your scope

Common questions

How much does install a tankless water heater cost in Washington?

Install a Tankless Water Heater in Washington typically runs $1,892–$4,136. This is a modeled estimate from local labor rates and material prices — a reference range, not a quote. Your exact cost depends on scope, materials, and access.

What's included in this estimate?

Local labor ($327–$1,096) plus materials. Labor rate is based on BLS OEWS May 2023 — Washington-Arlington-Alexandria, DC-VA-MD-WV.

How accurate is this estimate?

It's modeled from local labor rates and current material prices, and it sharpens as neighbors share real quotes. For your exact number, check a real quote against the local range.

What changes the price of install a tankless water heater?

The biggest swings are scope (how much work), materials tier (basic vs premium), and access or condition found on site.