More Heating & Cooling: AC Repair ·HVAC Replacement ·Heat Pump Installation ·Mini Split Installation ·Furnace Replacement
Replacing a central air conditioner costs $4,000 to $12,000 in 2026. Most people pay about $6,500. That price covers the cooling side only, not a whole heating and cooling system.
What you pay for
A proper replacement is more than the box outside. It includes:
- the condenser, the unit that sits outside;
- a matched evaporator coil, the part inside that cools the air;
- labor and electrical work;
- often a new refrigerant lineset, the pipes that connect the outdoor and indoor parts;
- a thermostat and permits.
Pairing a new condenser with an old coil that doesn’t match is a common shortcut. It hurts efficiency and warranties.
What changes the price
Two things move the price most: size and efficiency. Size is measured in tons of cooling:
- A 2-ton unit, for a home up to about 1,200 square feet, costs $3,500 to $6,000.
- A 3-ton unit, for about 1,500 to 1,800 square feet, costs $4,500 to $8,000.
- A 4- to 5-ton unit, for about 2,000 to 3,000 square feet, costs $6,000 to $10,000.
Those home sizes are only a rough guide. The right size comes from a Manual J load calculation, the standard way to work out how much cooling your home needs. A high-efficiency unit, with a higher SEER2 rating, adds $2,000 to $4,000. Ducts that leak or are too small can add cost too.
Just the air conditioner, or the whole system?
This guide covers replacing the air conditioner when your furnace or air handler (the indoor fan unit) still works. If only the air conditioner failed, replacing just that part is the best use of your money. If both are getting old, replacing them together costs more up front. But you pay for labor once, and the parts are sure to match.
If your unit is old and leaking
Newer systems use refrigerants that are less harmful to the climate. Older systems use refrigerants that are being phased out and cost more and more to service. If your unit is old and leaking refrigerant, that alone is often reason enough to replace it instead of paying for repeated refills.
How to spend less
- Get three itemized quotes for the same size and SEER2 rating, so you can compare them fairly.
- Ask for a Manual J instead of buying a bigger unit than you need.
- Seal your ducts so the new unit works as well as it’s rated to.
- Install in spring or fall, when prices are often lower.
If money is tight
- Cheapest safe way
- A standard-efficiency unit, sized with a Manual J load calculation. High efficiency adds $2,000 to $4,000, and a standard unit is usually the better value in a mild climate.
- What can wait
- A healthy furnace. Replace only the air conditioner unless the furnace is also near the end of its life.
- Don't skimp on
- A matched indoor coil. Pairing a new condenser with an old coil that doesn't match is a common shortcut that hurts efficiency and warranties.
| Item | Typical range | Notes |
|---|---|---|
| Condenser (outdoor unit) | $1,500 – $4,000 | – |
| Evaporator coil (indoor part) | $600 – $1,500 | – |
| Labor to install | $1,200 – $3,000 | – |
| Refrigerant lines and electrical work | $300 – $1,500 | – |
| Permits and thermostat | $150 – $700 | When a heating and cooling project needs a permit on Permit Notebook, our sister site |
| Option | Typical range | Notes |
|---|---|---|
| 2-ton (up to 1,200 sq ft) | $3,500 – $6,000 | – |
| 3-ton (1,500–1,800 sq ft) | $4,500 – $8,000 | – |
| 4–5 ton (2,000–3,000 sq ft) | $6,000 – $10,000 | – |
| High efficiency (higher SEER2) | +$2,000 – $4,000 | Added to the price of a standard unit |
What affects the price
- Size in tons Air conditioners are sized in tons (how much cooling they can do) to match your home. A bigger unit costs more to buy and install.
- Energy efficiency A unit with a higher SEER2 (seasonal energy efficiency ratio) rating costs more up front but lowers your summer electric bills.
- Duct condition Ducts that leak or are too small may need sealing or changes, which adds cost.
- Coil and refrigerant lines A proper install includes a matched evaporator coil and, sometimes, a new refrigerant lineset.
- Region and season Labor rates and demand peak in summer. Installing in the off-season is often cheaper.
Central AC replacement cost by state
Where you live can change the price as much as the options you pick. Labor is a big part of the bill, and construction workers are paid more in some states than others. A typical central AC replacement job costs about $4,700 to $14,000 in Hawaii (17% above the U.S. average). In Arkansas, it costs about $3,400 to $10,200 (15% below the U.S. average).
See the typical cost in all 50 states and D.C.
| State | Typical range |
|---|---|
| Alabama | $3,500 – $10,400 |
| Alaska | $4,600 – $13,800 |
| Arizona | $3,800 – $11,400 |
| Arkansas | $3,400 – $10,200 |
| California | $4,500 – $13,400 |
| Colorado | $4,000 – $12,000 |
| Connecticut | $4,300 – $12,800 |
| Delaware | $3,900 – $11,800 |
| District of Columbia | $4,300 – $13,000 |
| Florida | $3,600 – $10,900 |
| Georgia | $3,700 – $11,000 |
| Hawaii | $4,700 – $14,000 |
| Idaho | $3,800 – $11,300 |
| Illinois | $4,600 – $13,800 |
| Indiana | $4,000 – $12,100 |
| Iowa | $3,900 – $11,600 |
| Kansas | $3,800 – $11,400 |
| Kentucky | $3,700 – $11,200 |
| Louisiana | $3,600 – $10,800 |
| Maine | $3,900 – $11,800 |
| Maryland | $4,000 – $12,000 |
| Massachusetts | $4,600 – $13,800 |
| Michigan | $4,000 – $12,000 |
| Minnesota | $4,400 – $13,100 |
| Mississippi | $3,500 – $10,400 |
| Missouri | $4,100 – $12,200 |
| Montana | $3,900 – $11,800 |
| Nebraska | $3,800 – $11,300 |
| Nevada | $4,100 – $12,400 |
| New Hampshire | $4,000 – $11,900 |
| New Jersey | $4,600 – $13,700 |
| New Mexico | $3,700 – $11,000 |
| New York | $4,400 – $13,200 |
| North Carolina | $3,600 – $10,800 |
| North Dakota | $4,000 – $12,100 |
| Ohio | $4,000 – $12,000 |
| Oklahoma | $3,600 – $10,900 |
| Oregon | $4,400 – $13,200 |
| Pennsylvania | $4,000 – $12,100 |
| Rhode Island | $4,200 – $12,500 |
| South Carolina | $3,600 – $10,900 |
| South Dakota | $3,600 – $10,800 |
| Tennessee | $3,700 – $11,000 |
| Texas | $3,600 – $10,900 |
| Utah | $3,800 – $11,300 |
| Vermont | $3,900 – $11,600 |
| Virginia | $3,800 – $11,400 |
| Washington | $4,600 – $13,900 |
| West Virginia | $3,800 – $11,400 |
| Wisconsin | $4,200 – $12,500 |
| Wyoming | $4,000 – $11,900 |
These are numbers to plan with, not quotes. Each one is this guide's U.S. range, adjusted for what construction workers earn in that state. See every state cost guide or how we estimate.
Common questions
- Is replacing just the AC cheaper than a full HVAC system?
- Yes. Replacing just the central air conditioner (the condenser and coil) costs $4,000 to $12,000. A full system that also includes a new furnace or air handler costs more. If only the air conditioner failed and your furnace is healthy, replacing just the air conditioner is the lower-cost choice.
- How long does a central AC last?
- A well-maintained central air conditioner lasts 12 to 17 years. Once it's past 12 years, a major repair, especially to the compressor (the pump in the outdoor unit) or coil, usually makes replacing it the better deal.
- Is a high-SEER2 air conditioner worth it?
- In a hot climate where you run the air a lot, it can pay for itself through lower bills. In a mild climate, a standard-efficiency unit is usually the better value.
- What size AC do I need?
- Ask for a Manual J load calculation, the standard way to work out how much cooling your home needs. Don't go by a rule of thumb. An air conditioner that's too big turns on and off too often, cools unevenly and wastes energy.
- Can I reuse my existing ductwork?
- Often, yes, if the ducts are well sealed and the right size. A good installer checks them. Ducts that leak or are too small will hold back even the best new unit.
- What are the signs my AC needs replacing?
- Warm air, weak airflow, frequent repairs, rising bills, loud running and an age past 12 years all point to replacement. That's even more true if it still uses an older refrigerant.
- Should I replace the furnace at the same time?
- Yes, if your furnace is also near the end of its life. Replacing both at once saves paying for labor a second time. It also makes sure the blower (the fan that moves the air) and the coil are properly matched.
How we estimate: These are typical U.S. prices for materials and for hiring a pro to install them. We checked them against the 2026 sources listed below (see how we get our numbers). Your price depends on where you live, the size of the job and the materials you pick. Get two or three written bids before you choose a contractor.
Sources
We checked the prices on this page against 2026 numbers from these sources:
- Air Conditioner Replacement Cost in 2026: 6 Ways to Save, NerdWallet
- How Much Does AC Replacement Cost? (2026), HomeGuide
- Air Conditioner Prices in 2026, Carrier