Cost guide

HVAC Replacement Cost Calculator

Typical planning range: $7,200 - $19,500.

This page focuses on full-system replacement costs when the air handler, condenser, thermostat, and related components may all change together.

It is most useful when the system is aging, comfort is uneven, or the homeowner suspects the repair path is getting too expensive.

What makes this cost different?

complete system replacement, indoor equipment, outdoor equipment, and controls

A complete replacement should list the indoor and outdoor equipment, any required electrical or drain work, and whether the thermostat is included.
The estimate can jump when duct sealing, air quality accessories, or zoning are added to the job.

Home size	Typical range	Notes
Under 1,200 sq ft	$6,200 - $11,900	full system may still be modest
1,200 - 2,000 sq ft	$7,200 - $16,800	common full replacement range
2,001 - 3,000 sq ft	$9,500 - $21,700	larger systems increase cost
Over 3,000 sq ft	$12,700 - $29,500	zoning and accessories matter

How is HVAC replacement different from AC replacement?

HVAC replacement usually means more of the system is being replaced, not only the cooling side.

Do I need new ductwork too?

Only if the ducts are damaged, leaky, or the new system needs different airflow.

When is full replacement worth it?

When the system is older, unreliable, or the repair cost is close to replacement cost.