Central ducted heat pump (4-ton): the short answer
As configured, budget roughly $12,500 – $22,500 for a
central ducted heat pump (4-ton), rising toward $14,500 – $27,500
once new ductwork and electrical work are included. Four tons is near the top of common residential sizes, and per-ton pricing means equipment and install cost scale with it. A system this large also raises the odds of extras — ducts sized for a smaller unit may need reworking to move enough air, and the bigger circuit makes panel work more likely. The biggest swing is
still your own site, so itemize your estimate above.
Before you book an installer
These figures are indicative ranges, not quotes, and not HVAC, electrical,
or tax advice. Get several written, itemized estimates from licensed HVAC contractors, and
confirm any permit or inspection requirement locally. A different equipment tier, ductwork,
or electrical work can move the total well beyond these ranges. The federal 25C credit is
not available for property placed in service after December 31, 2025, so it is not
subtracted from this 2026 estimate.
Verify the 25C termination at IRS.gov
(rules checked 2026-07-12).
National indicative ranges for this configuration, as of 2026-06.