Basic
$1,947 – $4,866 each
Non-condensing whole-house gas tankless unit with stainless steel venting, isolation valves, gas connection, old tank removed
Photo: Behrat · CC BY-SA 3.0 · Source
How Much Does Gas Tankless Water Heater Cost in Seattle, Washington?
Install one whole-house natural gas tankless water heater including unit, venting, gas line connection and tank removal.
Gas Tankless Water Heater in Seattle, Washington typically costs $2,290 to $5,725 each as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Gas Tankless Water Heater in Seattle, Washington
$2,290 – $5,725
eachPrices in Seattle are 19.0% higher than the national average for gas tankless water heater.
National average: $2,000 – $5,000 each
What you get at each price level
Standard
$2,290 – $5,725 each
Condensing whole-house gas tankless unit with PVC venting, condensate neutralizer, isolation valve kit, old tank removed
Premium
$2,863 – $7,156 each
Condensing gas tankless unit with built-in recirculation pump and Wi-Fi control, PVC venting, neutralizer, isolation valves
Cost Breakdown in Seattle
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $936 – $2,340 | each |
| Labor | labor | $938 – $2,345 | each |
| Supplies & Other | supplies | $250 – $624 | each |
| Equipment & Disposal | equipment | $166 – $416 | each |
Prices adjusted for Seattle local market conditions.
Gas Tankless Water Heater photo examples
Two white wall-mounted gas tankless water heaters with pipe runs on a brick wall
Photo: Dinkun Chen · CC BY-SA 4.0 · Source
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Cost Factors in Seattle, Washington
What Affects Pricing
- Materials ($900.00-$2,250.00 per unit)
- Labor ($700.00-$1,750.00 per unit)
- Supplies & Other ($240.00-$600.00 per unit)
- Equipment & Disposal ($160.00-$400.00 per unit)
Local Price Adjustments
Material costs4.0% above avg
Labor costs34.0% above avg
Labor costs in Seattle run proportionally higher than materials, which may favor material-heavy solutions.
Frequently Asked Questions
References
- Water Heater Installation Cost - This Old House, This Old House, retrieved Nov 2026
- Construction wages by metro and rural area, used for the labor adjustment by ZIP code, U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics, May 2025
- Regional price parities for goods, used for the materials adjustment by ZIP code, U.S. Bureau of Economic Analysis, 2024
Get Free Estimates in Seattle
Connect with local gas tankless water heater contractors in Seattle for personalized quotes based on your specific project.