Basic
$4,380 – $8,759 each
95-96% AFUE single-stage condensing gas furnace with ECM blower, PVC venting, condensate drain, new thermostat
Replace a gas furnace with a 95-98% AFUE condensing unit including PVC venting, condensate drain and connection to existing ducts.
High Efficiency Gas Furnace in Seattle, Washington typically costs $5,153 to $10,305 each as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Prices in Seattle are 19.0% higher than the national average for high efficiency gas furnace.
National average: $4,500 – $9,000 each
$4,380 – $8,759 each
95-96% AFUE single-stage condensing gas furnace with ECM blower, PVC venting, condensate drain, new thermostat
$5,153 – $10,305 each
96-97% AFUE two-stage condensing gas furnace with variable-speed blower, PVC venting, condensate trap and neutralizer
$6,441 – $12,881 each
97-98% AFUE modulating condensing gas furnace with variable-speed blower, communicating thermostat, concentric vent kit
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $2,106 – $4,212 | each |
| Labor | labor | $2,111 – $4,221 | each |
| Supplies & Other | supplies | $562 – $1,123 | each |
| Equipment & Disposal | equipment | $374 – $749 | each |
Labor costs in Seattle run proportionally higher than materials, which may favor material-heavy solutions.
Connect with local high efficiency gas furnace contractors in Seattle for personalized quotes based on your specific project.