Furnace installation or replacement in the Spokane area typically costs $4,500 to $9,500, depending on furnace size, efficiency (80% vs. 95% AFUE), brand, fuel type, and any modifications to gas lines, electrical, or ductwork. High-efficiency variable-speed gas furnaces or heat-pump packages run $8,500 to $14,000+.

What drives the price

  • BTU output and home load
  • Efficiency (80% vs. 96% AFUE)
  • Single-stage vs. two-stage vs. variable-speed
  • Brand and warranty
  • Required gas line, electrical, or duct work
  • Permit and inspection fees

We provide written, flat-rate quotes. See furnace installation, plus financing.