Buying a new air conditioner (AC) can cost between $5,008–$28,509. Older AC units consume more electricity and may frequently need repairs, so replacing them with more efficient models can save you money in the long run. According to the U.S. Department of Energy (DOE), newer air conditioner designs use 30%–50% less energy than they did 30–40 years ago. Even 10-year-old units can use up to 20%–40% more energy than newer systems due to outdated technology and aging parts.
The cost of air conditioning includes the unit itself, installation, maintenance, and energy bills. We conducted in-depth research on the best air conditioner brands to provide average costs and give you an idea of what to expect during the buying process. Pricing can vary depending on factors such as your location, home size, and property details.
Key Takeaways
- Air conditioner replacement costs range between $5,008 and $28,509, with central AC systems averaging $6,736–$20,099, including installation.
- Window AC units are the most affordable option at $150–$750 with no installation required, while geothermal systems are the most expensive at $13,000–$36,000 total cost.
- According to the U.S. Department of Energy, newer air conditioner designs use 30%–50% less energy than units from 30–40 years ago, with even 10-year-old systems consuming 20%–40% more energy than current models.
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Ad DisclaimerHow Much Do Air Conditioners Cost by Type?
Choosing an AC system involves more decisions than just price. Your home may require a certain type, or you may prefer one type over another based on your comfort. Keep reading for information on the five most popular air conditioners and their average prices.
Note: Cost figures in this article are based on 2025 reports from Homewyse, a platform used by contractors to generate home improvement quotes.
Central Air Conditioning
Central AC units are the most popular air conditioners and are found in millions of homes throughout the country. They extract air from the inside of the house, then compress it with refrigerant in the outdoor condensing unit. The remaining gas is then sent through the condenser coils to be turned into a hot liquid. The new fluid travels to the evaporator coils on the indoor furnace unit and transforms into a cool evaporated gas. Fans and centralized ductwork distribute the air throughout your home.
Purchasing a central air conditioner may be your best option if you already have ductwork installed throughout the house. Depending on the size and other factors, the total average cost for this situation is typically between $6,736–$20,099, including installation.
Window AC Unit
The process of cooling air in a window air conditioner is similar to a centralized one, but on a much smaller scale. Window AC units are only intended to cool the room they’re placed in, rather than the whole house. They feature fans that blow the cool air throughout the room, and they expel the hot air outside through the window.
These units are the cheapest on the market, and they typically don’t require any installation. You simply purchase it and set it up in your window within minutes. They’re sold based on power level with room size in consideration. Here are some examples of power levels in British thermal units (BTUs) and their associated square footage:
- 5,000–8,000 BTU: 150–350 square feet
- 8,000–12,000 BTU: 350–550 square feet
- 12,000–18,500 BTU: 550–1,050 square feet
- 18,500–25,000 BTU: 1,050–1,600 square feet
Window air conditioners don’t typically require professional installation, and window AC unit costs are as low as $150–$750.
Ductless Mini-Split
If your home doesn’t have any ductwork installed, mini-split air conditioners may be the best option. They allow you to control temperatures in each zone of your home. Another benefit of this type is that it doesn’t use as much electricity and requires only one power supply connection.
Pricing for these air conditioners can vary depending on how many zones you need to condition. In other words, if you have a larger house, you’ll need to install a few different indoor units, which can be costly. Because of the varying costs, we estimate the total average cost range for mini-split AC units is $1,500 to $8,000.
Heat Pumps
Heat pumps are HVAC systems that offer both heat and air conditioning throughout your home via ground-sourced temperatures. It uses water and antifreeze solution in tubing about 4 feet in the ground to capture heat and transfer it into the compressor of the unit. Then, the air is compressed, sent to evaporator coils, heated or cooled to desired temperatures, and blown through the home through centralized ducts and vents. It can also extract hot air from your house during cooling and send it back into the ground.
Geothermal heat pumps require extensive labor for installation, including digging trenches and laying piping. As such, this is one of the most expensive air conditioner options. Total price averages can reach $7,363–$21,658. However, it’s one of the most efficient ways to condition the air in your house, using minimal electricity or gas. It could definitely pay off in the long run.
Dual Fuel
Dual fuel systems are similar to central air conditioners, utilizing the coils on your indoor furnace unit. The primary difference is that they include heat pump technology to help lower the cost of your energy bill.
Dual fuel systems are an ideal solution for those living in colder states. It offers a gas furnace to help heat your home during the winter when the temperature drops too low for the heat pump to run efficiently. However, it can also be beneficial for cooling your home by using air-source heat from the heat pump to condense and evaporate cool fluid in the air-distribution features of the furnace unit, blowing comfortable air throughout the house.
The costs of dual fuel heat pump systems can vary depending on the size needed for the home. The overall average cost for the installation and unit falls between $9,607 and $28,655. Like geothermal heat pumps, these systems can save you money on your energy bill over time.
| Unit Type | Average Unit Cost | Cost of Installation |
|---|---|---|
| Central air conditioner | $5,500–$16,000 | $1,000–$7,000 |
| Window AC unit | $150–$750 | $0 (self-installation) |
| Ductless mini-split | $1,000–$5,500 | $500–$2,000 |
| Heat pump | $6,000–$18,000 | $1,000–$7,000 |
| Dual fuel | $6,000–$25,000 | $1,000–$7,000 |
What Factors Affect the Cost of Air Conditioners?
When buying a new air conditioner, it’s easy to focus on price. However, you should consider several factors before making your purchase. To make sure you’re getting the best system for your home, speak with an HVAC contractor about specific models, installation costs, efficiency, and more. Here are some of the biggest factors that affect the overall costs.
Size
Each air conditioning system has recommended sizes for a certain square footage that they are capable of cooling effectively. If your unit is too small for your space, it has to work harder to cool your home. This results in increased energy bills, wear and tear, and more frequent repairs and maintenance.
The size of an AC unit is often measured in “tonnage,” with higher tonnage models more effectively cooling large homes. For example, the average cost for a 2,500-square-foot home is $12,600.
Generally, you should follow a square footage to tonnage chart to find the best size or consult a professional contractor. Every home is different, so a local HVAC installer will usually inspect your space and analyze its cooling requirements.
| Tonnage | Average Cost | Cost Range |
|---|---|---|
| 1.5 tons | $8,448 | $4,853–$18,657 |
| 2 tons | $8,551 | $4,940–$18,854 |
| 2.5 tons | $8,586 | $4,940–$19,051 |
| 3 tons | $8,654 | $5,026–$19,051 |
| 3.5 tons | $8,723 | $5,026–$19,249 |
| 4 tons | $13,136 | $5,762–$37,017 |
| 5 tons | $16,312 | $5,892–$39,286 |
Brand
While there’s a wide selection of AC models and brands, choosing a well-known manufacturer helps ensure longevity, trust, and reliability for your home’s cooling system. Many of these brands offer models that are more energy-efficient and long-lasting. While they may not be the cheapest option, many people are willing to pay the premium for increased longevity, a robust warranty, better energy efficiency, and more.
Choosing an AC brand affects project costs, with about a 14% price gap between the most and least expensive options. Rheem is budget-friendly at about 7% below market average, and Goodman is around 3% below average. Lennox costs roughly 7% more than market average, while Trane is about 3% more. Installation typically ranges from $3,300–$6,700, depending on the system size and complexity. Premium brands like Lennox and Trane may cost more up-front, but these companies offer longer warranties and better efficiency. Rheem and Goodman provide reliable, affordable options for budget-conscious homeowners.
Installation
Other than when purchasing smaller units like a window or portable AC, installation is one of the most costly parts of the purchase after choosing a device. Installation costs are separate from equipment fees and are based on the time to do the job and the type of system you choose.
Central air systems are often the most popular but come with the most expensive and invasive process since they usually require ductwork replacement. If you don’t have ductwork in your home or if it’s in poor condition, you might want to consider a split or ductless system since these require little or no ductwork to install.
Seasonal Energy Efficiency Ratio (SEER)
The SEER rating measures an air conditioner’s energy efficiency over the course of a cooling season. Measured in British Thermal Units (BTUs) per watt, most air conditioners sold in the U.S. traditionally had SEER ratings between 13 and 21. However, starting January 1, 2023, SEER2 became the new standard efficiency rating system for air conditioners and heat pumps.
SEER2 uses stricter testing conditions that better reflect real-world operating environments, including higher static pressure to account for ductwork resistance and air filters. Although SEER2 ratings are typically 4%–7% lower than SEER ratings due to these stricter tests, this updated system provides a more accurate view into how efficiently a system will perform in your home.
A higher SEER2 rating means a more efficient system and lower utility bills. Minimum SEER2 requirements vary by region. Homes in northern states usually require units with a 13.4 SEER2 rating or higher, while homes in Southeastern and Southwestern states often require a 14.3 SEER2 rating or higher. Today’s high-efficiency units can reach a rating of 26 or higher SEER2. When selecting a SEER2 rating for your home, consider your local climate, home size, and cooling needs. Systems with higher SEER2 ratings tend to cost more, but can save you money over time, especially if you live in a hot climate or have a larger home.
The table below outlines the average cost of AC units based on SEER2 ratings and home size.
| Home Size | SEER 15 | SEER 16 | SEER 17 |
|---|---|---|---|
| 1,000 square feet | $7,376 | $7,333 | $9,432 |
| 1,100 square feet | $7,479 | $7,436 | $9,535 |
| 1,200 square feet | $7,479 | $7,436 | $9,535 |
Financing Options and Incentives for AC Replacement
Replacing your air conditioning system is a major investment, but many financing options and incentive programs can make it more affordable. From 0% manufacturer financing to significant federal tax credits, homeowners today have access to various tools that can lower both initial costs and long-term expenses. Understanding these options and how to combine financing methods effectively can save you thousands on your AC replacement project.
- AC financing: Several financing solutions can help homeowners spread out unit replacement costs, including credit cards with promotional interest rates, personal home improvement loans, and manufacturer financing programs. Another option is Property Assessed Clean Energy (PACE) financing, which provides government-sponsored loans tied to property taxes with potentially lower rates and longer terms.
- AC replacement incentives: You can stack numerous rebate programs for maximum savings, including utility rebates for energy-efficient equipment upgrades, state programs offering cash rebates or tax credits, municipal programs providing local energy rebates, and Energy Star certification benefits.
- Tax credits: The federal government currently provides a 30% tax credit on total project costs (capped at $3,200) for qualifying high-efficiency systems. Most Energy Star-certified units with SEER2 ratings above 13.4–14.3, meet these requirements. You can combine the federal tax credit with state, utility, and local incentives for additional savings. Note that application timing is important as programs often change and have limited funding.
Common Air Conditioner Repair Costs
If your air conditioner breaks down, you’ll need to hire a technician to diagnose and fix the problem. Many home warranty plans cover AC repairs, so check your contract and call your provider. If you don’t have a home warranty, you could face higher costs out of pocket depending on the problem and your type of system. Here are some common AC repairs and their costs:
- Coil cleaning ($250–$1,000): Dirty evaporator or condenser coils can reduce cooling efficiency and strain the system. Regular cleaning helps prevent costly repairs and extends your unit’s lifespan.
- Compressor repair or replacement ($600–$1,200): A malfunctioning compressor can prevent your AC from turning on. In many cases, replacing the compressor is more cost-effective than repairing it, especially for older systems.
- Electrical issues ($100–$150): Problems with the circuit breaker, capacitor, or wiring can cause your system to malfunction. If you notice burning smells or unusual noises, call a technician to inspect the unit and make necessary repairs.
- Refrigerant recharge ($200–$1,300): If your AC isn’t blowing cool air, it may have low refrigerant levels due to a leak. A technician will need to repair the leak and add new refrigerant. Keep in mind that older refrigerants, such as Freon® (R-22), are banned by the Environmental Protection Agency (EPA), which can increase the cost of a recharge.
Repair vs. Replacement: What To Consider
Air conditioners typically last 10–15 years. If your system is approaching the 10-year mark and repair costs exceed $1,000, replacing it may be a smarter long-term investment. Regular HVAC maintenance, such as cleaning coils and changing filters, can extend an AC’s lifespan, but all units eventually wear out. Here are other AC repairs and their average costs:
| Common Repair | Average Cost |
|---|---|
| Leak | $200–$1,300 |
| Drainage problems | $100–$150 |
| Compressor replacement | $600–$1,200 |
| Frozen condenser coils | $250–$1,000 |
| Fan or air blower issues | $450–$650 |
| Clogged air filter | $75–$180 |
| Electrical circuits | $100–$150 |
| Thermostat | $100–$250 |
FAQs About Air Conditioner Costs
How much does an air conditioner cost for a 2,000 square foot home?
An AC system for a 2,000-square-foot home costs $5,181–$13,465, depending on SEER2 efficiency ratings and installation complexity. Basic systems with lower SEER2 ratings run cheaper, while high-efficiency units with SEER2 ratings of 18-22 or higher and advanced features like variable-speed tech or smart controls cost more.
Can I install my own air conditioner?
Installing air conditioning units almost always requires hiring an HVAC contractor since the wiring, tubing, and piping can be complex. They can also include dangerous chemicals that should not be spilled. However, if you’re just purchasing a window AC unit, you can install it in your window without an HVAC expert in most cases.
Which air conditioner is the most efficient?
Heat pumps can offer the most efficient way to heat and cool your home by using external sources such as air, water, or ground temperatures. Many residents who use heat pumps for their air conditioning save substantial amounts on their electricity or natural gas energy bills. Dual fuel or geothermal heat pumps are two options to consider.
What’s the difference between an air conditioner and a heat pump?
A heat pump is a type of air conditioner and heating system that can provide hot and cool air throughout your house. It’s similar to a central air conditioning unit in that it typically uses ductwork in your home to distribute the air. Speaking to an HVAC professional can always help you determine what would be the best fit for your house.
What is the electric cost to run an air conditioner daily?
The daily energy cost of your air conditioner can vary depending on its size, the power needed to cool your house, and the desired temperatures. However, our research found that air conditioners usually cost about $2–$5 per day. Different types of air conditioners require less energy, so shop around for the best one to fit your budget.
How We Determined Air Conditioner Pricing
To provide the most accurate and current pricing for air conditioners, we primarily collected costs based on contractor estimates from Homewyse and by doing market research. Our research included analyzing material and labor costs to ensure a comprehensive view of unit and installation pricing locally and nationwide. Prices shared in this guide represent estimates based on our research at the time of publication. Actual costs may vary depending on factors such as your location, air conditioner unit and setup, and installation rates.
