HVAC System Replacement Cost: 2026 Price Guide

Replacing the whole system at once means the furnace or air handler and the AC or heat pump. That way the parts match, the equipment gets sized correctly, and duct problems get fixed in the same job. Across the U.S., most homeowners pay $8,500 to $18,500.

HVAC System Replacement Cost by State

State	Typical range
Alabama	$8,500 to $18,600
Alaska	$11,400 to $24,700
Arizona	$10,900 to $23,800
Arkansas	$8,000 to $17,500
California	$11,000 to $23,900
Colorado	$11,500 to $25,000
Connecticut	$10,100 to $22,000
Delaware	$9,400 to $20,400
District of Columbia	$11,800 to $25,600
Florida	$10,600 to $23,100
Georgia	$8,900 to $19,400
Hawaii	$13,600 to $29,600
Idaho	$10,200 to $22,100
Illinois	$10,200 to $22,100
Indiana	$9,000 to $19,500
Iowa	$9,500 to $20,600
Kansas	$9,000 to $19,600
Kentucky	$8,400 to $18,300
Louisiana	$8,800 to $19,200
Maine	$10,100 to $22,000
Maryland	$10,600 to $23,000
Massachusetts	$11,900 to $26,000
Michigan	$9,200 to $20,100
Minnesota	$11,200 to $24,300
Mississippi	$8,100 to $17,600
Missouri	$8,900 to $19,400
Montana	$10,500 to $22,800
Nebraska	$9,300 to $20,300
Nevada	$10,300 to $22,400
New Hampshire	$10,800 to $23,500
New Jersey	$10,900 to $23,600
New Mexico	$8,400 to $18,300
New York	$11,300 to $24,600
North Carolina	$8,800 to $19,100
North Dakota	$10,100 to $22,100
Ohio	$8,900 to $19,400
Oklahoma	$8,200 to $17,800
Oregon	$10,200 to $22,200
Pennsylvania	$8,800 to $19,200
Rhode Island	$9,800 to $21,400
South Carolina	$8,900 to $19,300
South Dakota	$10,000 to $21,700
Tennessee	$8,600 to $18,700
Texas	$9,800 to $21,300
Utah	$11,100 to $24,100
Vermont	$10,400 to $22,600
Virginia	$10,600 to $23,000
Washington	$11,600 to $25,300
West Virginia	$8,200 to $17,800
Wisconsin	$10,000 to $21,900
Wyoming	$10,400 to $22,600

When Replacement Makes Sense

Both the heating and cooling equipment are 15 years old or more
Both units keep needing repairs
Some rooms are uncomfortable, and the energy bills are high
An old R-22 AC paired with an aging furnace

What Moves the Price

Furnace plus AC, or heat pump plus air handler
Efficiency ratings: SEER2, AFUE and HSPF2
Equipment sized to the house and climate
Duct repair or replacement
Thermostat and zoning upgrades
Permits and electrical work

Common Questions

How often should an HVAC system be replaced?

Most systems get replaced every 15 to 20 years. AC units and heat pumps usually wear out before gas furnaces do.

Can I replace only the AC and keep my furnace?

Yes, as long as the indoor coil and blower work with the new AC. A mismatched system loses efficiency and can void the warranty.

HVAC System Replacement in Major Cities

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