Research-backed, locally grounded guides for Treasure Valley, Idaho.
May 2026
Full heating and cooling system replacement in the Treasure Valley typically runs $7,500 to $15,000 in 2026. A furnace alone runs $3,500 to $8,000, an air conditioner alone runs $4,000 to $8,500, and a heat pump system runs $5,500 to $12,500. High-efficiency installations, larger Boise-area homes, and added ductwork can push a full replacement above $18,000. Idaho Power and Intermountain Gas rebates plus federal tax credits often reduce out-of-pocket cost by $1,000 to $3,000 or more.
Read Full Article →