How much does it cost to replace a central AC unit? (2026)

Replace a central AC unit (installed) · US average
$4,500 to $9,000

The middle of the range, about $6,750, is a fair starting point for a standard job; simple jobs land near the low end, complicated ones near the top.

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What changes the price

  • The size of the unit (tons or BTUs) and its efficiency rating.
  • Changes to ductwork, the thermostat or the electrical supply.
  • Brand and warranty length.
  • Season: peak summer and winter weeks are busiest and dearest.
  • Removal and disposal of the old unit and refrigerant.

How to get a fair price

  • Get 2 or 3 written quotes for the same job, then compare them with the quote checker.
  • Ask what is included: parts, permits, clean-up and warranty.
  • Pay a deposit, not the full price, before the work starts.
  • Check reviews, a real address and phone number, and a license where your state requires one. Look up a business.

AC replacement cost by state

StateTypical price
Alabama$4,050 to $8,100
Alaska$4,580 to $9,150
Arizona$4,550 to $9,100
Arkansas$3,890 to $7,790
California$5,070 to $10,130
Colorado$4,560 to $9,130
Connecticut$4,670 to $9,330
Delaware$4,470 to $8,940
District of Columbia$4,990 to $9,970
Florida$4,660 to $9,320
Georgia$4,350 to $8,700
Hawaii$4,890 to $9,770
Idaho$4,110 to $8,230
Illinois$4,450 to $8,900
Indiana$4,150 to $8,300
Iowa$4,000 to $7,990
Kansas$4,050 to $8,100
Kentucky$4,070 to $8,150
Louisiana$3,970 to $7,950
Maine$4,370 to $8,740
Maryland$4,680 to $9,360
Massachusetts$4,870 to $9,740
Michigan$4,240 to $8,480
Minnesota$4,430 to $8,860
Mississippi$3,930 to $7,860
Missouri$4,130 to $8,260
Montana$4,060 to $8,120
Nebraska$4,070 to $8,140
Nevada$4,370 to $8,730
New Hampshire$4,740 to $9,480
New Jersey$4,900 to $9,800
New Mexico$4,070 to $8,140
New York$4,840 to $9,680
North Carolina$4,230 to $8,470
North Dakota$3,990 to $7,970
Ohio$4,130 to $8,260
Oklahoma$3,970 to $7,950
Oregon$4,710 to $9,420
Pennsylvania$4,390 to $8,780
Rhode Island$4,560 to $9,130
South Carolina$4,190 to $8,390
South Dakota$3,960 to $7,930
Tennessee$4,160 to $8,330
Texas$4,370 to $8,750
Utah$4,280 to $8,550
Vermont$4,350 to $8,690
Virginia$4,530 to $9,060
Washington$4,890 to $9,770
West Virginia$4,040 to $8,080
Wisconsin$4,190 to $8,380
Wyoming$4,090 to $8,170

Related cost guides

Questions

How much does it cost to replace a central AC unit?

In the US, expect about $4,500 to $9,000 for the job. Prices vary with the job, the home and how soon you need it.

What makes the price go up or down?

The size of the unit (tons or BTUs) and its efficiency rating. Changes to ductwork, the thermostat or the electrical supply. Brand and warranty length.

How can I save money?

Get 2 or 3 written quotes, ask what is included (parts, permits, clean-up, warranty), avoid emergency call-outs when the job can wait, and book in the quieter season.

Typical prices, not quotes. Sources: FixItReal cost guides (2026) and the LocalPross 2026 Home Repair Cost Index, adjusted with the BEA Regional Price Parities for your state. Updated November 2026.