Heat pump installation in Vermont costs $3,500–$5,500 for a single-zone ductless system and $8,000–$15,000 for a whole-home central ducted system, before rebates. Efficiency Vermont rebates reduce qualifying installations by $400–$1,500. The federal Inflation Reduction Act tax credit covers 30% of installation cost up to $2,000. Combined incentives often reduce net cost by $1,500–$3,500.