Two heat pump quotes can look very different because they may not include the same equipment or installation work. Compare complete systems rather than model price alone.
System configuration matters
Ducted air-source heat pumps, ductless mini-splits and other configurations use different indoor equipment and distribution systems. Existing ductwork can simplify some projects while poor ducts can add scope.
Sizing should not come from square footage alone
Climate, insulation, windows, air leakage and duct performance affect heating and cooling loads. Ask how the contractor sized the system and whether a load calculation was performed.
Electrical and controls can add scope
Panel capacity, disconnects, wiring, thermostat or control changes and backup heat can affect the installed price.
Efficiency and cold-climate performance matter
Higher-efficiency equipment can cost more upfront. In colder climates, confirm low-temperature capacity and backup-heating strategy rather than comparing SEER2 alone.
Model your starting budget
Use the HVAC Replacement Cost Calculator to compare system type, efficiency tier and market assumptions before collecting local bids.