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How Much Does It Cost to Install a Central Air Conditioner?

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Key Takeaways

SectionSummary
AC Unit Replacement Cost$2,500 – $7,500 for 3 to 5 ton units
AC Unit + Ductwork Installation Cost$6,000 – $12,000
National Average Cost$4,700
Factors Affecting CostsUnit size, efficiency, labor, ductwork
Unit Prices by SEER Rating13-26 SEER range from $1,000 to $11,000 installed
Popular AC Brands CostPrices vary from $2,400 to $9,000
Additional CostsIncludes labor, ductwork installation, etc.

$2,500 – $7,500 AC Unit Replacement Cost (3 to 5 Ton)

Replacing an existing central air conditioner unit generally costs between $2,500 and $7,500 depending on the unit’s size and efficiency.

$6,000 – $12,000 AC Unit + Ductwork Installation Cost

Installing a new central air conditioner with ductwork ranges between $6,000 and $12,000. This includes both the unit price and the cost of ductwork installation.

Cost to Install Central Air

The cost to install a central air conditioner in a home varies significantly depending on the size of the home and the unit’s capacity. Below is a table summarizing the costs based on home size:

Cost to Install Central Air

Home Size (Square Feet)AC Unit TonsTotal Cost Installed
1,0001.5 – 2$2,000 – $5,500
1,2002 – 2.5$2,500 – $6,000
1,5002.5 – 3$2,700 – $6,500
1,6003 – 3.5$3,000 – $7,000
1,8003 – 4$3,000 – $7,500
2,0003.5 – 4.5$3,100 – $7,800
2,2004 – 5$3,500 – $8,000
2,5004.5 – 5$3,700 – $8,000
3,0005+$4,000 – $8,500

Central Air Installation Cost Calculator

Below is a summary of the national average, minimum, and maximum costs for central air installation:

Central Air Installation Cost Calculator

National Average Cost$4,700
Minimum Cost$1,100
Maximum Cost$15,000
Average Cost Range$2,500 – $7,500

New AC Unit Cost by Size

AC Unit Cost by Tons

The cost of an AC unit varies by its size (tonnage) and the cooling power (BTUs):

TonnageBTUsAC Unit PricesAC Cost Installed
1.5 Tons18,000 BTU$1,000 – $3,800$2,000 – $5,000
2 Tons24,000 BTU$1,200 – $4,000$2,500 – $5,500
2.5 Tons30,000 BTU$1,500 – $4,500$2,700 – $6,000
3 Tons36,000 BTU$1,700 – $5,000$3,000 – $6,500
3.5 Tons42,000 BTU$1,800 – $5,200$3,100 – $7,000
4 Tons48,000 BTU$2,000 – $5,500$3,500 – $7,500
5 Tons60,000 BTU$2,500 – $6,000$4,000 – $8,000

Whole-House AC Cost Per Square Foot

The cost for installing a new central air conditioning system also depends on the size of your home. On average, installing central AC can cost approximately $2 to $3 per square foot.

Central Air Conditioner Prices

Air Conditioner Prices by SEER Rating

The Seasonal Energy Efficiency Ratio (SEER) rating impacts the cost of an air conditioner significantly. Here is a table summarizing costs:

SEEREfficiencyAC Unit PricesTotal Cost Installed
13 – 14Standard Efficiency$1,000 – $4,200$2,500 – $6,000
15 – 16High Efficiency$1,500 – $5,700$3,000 – $7,500
17 – 18High Efficiency$1,800 – $6,100$3,500 – $8,600
19 – 21Very High Efficiency$2,500 – $7,500$4,000 – $10,000
22 – 26Maximum Efficiency$3,700 – $8,500$6,000 – $11,000

Central AC Unit Prices by Brand

Prices for Central AC units vary by brand:

BrandSEERAC Unit PricesTotal Cost Installed
Aire-Flo13 – 14$1,000 – $2,000$2,400 – $4,500
Amana13 – 24$1,300 – $4,500$3,000 – $7,500
American Standard13 – 20$1,500 – $4,300$3,800 – $8,000
Armstrong13 – 20$1,100 – $2,500$3,000 – $4,600
Bryant13 – 20$1,400 – $3,500$2,500 – $6,800
Carrier13 – 24$2,500 – $5,800$4,700 – $8,700
Coleman13 – 20$1,300 – $3,500$2,500 – $5,000
Comfortmaker13 – 19$1,300 – $3,000$2,800 – $5,800
Frigidaire13 – 20$1,300 – $3,000$2,500 – $4,800
Goodman14 – 24$1,200 – $3,000$3,200 – $5,000
Heil13 – 19$1,400 – $3,000$2,800 – $4,800
Lennox13 – 26$1,600 – $5,600$5,300 – $9,000
Payne13 – 17$1,000 – $1,800$2,500 – $3,900
Rheem / Ruud13 – 20$1,800 – $5,500$3,600 – $8,500
Tempstar13 – 19$1,300 – $3,000$2,600 – $5,200
Trane14 – 22$1,600 – $5,800$4,000 – $9,000
York13 – 21$1,400 – $4,700$3,500 – $8,000

Air Conditioner Replacement Cost by Type

Different types of air conditioning systems come with varying costs:

AC TypeAC Unit PriceTotal Cost Installed
Central Air Conditioner$1,000 – $5,000$2,500 – $7,500
Central Air Conditioner + Ductwork$3,400 – $9,000$6,000 – $12,000
Ductless Mini-Split AC System$1,500 – $8,000$3,000 – $10,000
Window AC Unit$150 – $800$300 – $1,100
Portable AC Unit$200 – $900$200 – $900
HVAC System (Furnace + AC)$2,400 – $5,600$4,800 – $9,400
Air-Source Heat Pump$2,000 – $4,000$4,000 – $8,000
Geothermal Heat Pump$2,500 – $8,000$15,000 – $35,000

Central Air System Types and Speeds

When selecting a central air conditioning system, it is essential to consider the types and speeds of available units. These factors impact the system’s cost and efficiency.

Ductless Mini-Split Air Conditioning Cost

Ductless mini-split systems are an alternative to central air. They eliminate the need for ductwork and can be ideal for specific rooms or smaller spaces.

Window or Portable AC Unit

Window and portable units offer an economical choice for cooling single rooms. They are inexpensive to purchase and can be easily installed without a professional.

HVAC Replacement – Central Heat and Air Unit

Replacing both heating and air conditioning units as an integrated system can save money in the long term and improve overall efficiency.

Home AC Unit and System Installation Cost Factors

Several factors influence the total cost of installing a home air conditioning unit:

FactorAverage Cost
New AC Unit$1,000 – $5,000
Labor Cost to Install$1,500 – $2,500
Ductwork Installation$1,400 – $6,600

Cost to Add Central Air Conditioning to an Existing Furnace

Adding central air to an existing furnace setup can be cost-effective. It minimizes the need for additional infrastructure while leveraging the existing heating system.

Install Ductwork for Central Air

Installing ductwork can be one of the most significant expenses in a new central air installation:

Install TypeCost per Linear FootAverage Cost
New Duct Installation$40 – $65$2,400 – $6,600
Ductwork Replacement$25 – $55$1,400 – $5,600

Additional Costs to Put in Central Air

There may be additional costs associated with electrical upgrades, permits, and other necessary preparations for installing central air conditioning.

AC Installation FAQs

What Size Air Conditioner Do I Need?

The size of the air conditioner needed depends on the area it needs to cool. Below is an AC unit size calculator based on different zones:

AC Unit Size Calculator

AC SizeZone 1Zone 2Zone 3Zone 4Zone 5
1.5 Tons600 – 900 sf600 – 950 sf600 – 1000 sf700 – 1050 sf700 – 1100 sf
2 Tons900 – 1200 sf950 – 1250 sf1000 – 1300 sf1050 – 1350 sf1100 – 1400 sf
2.5 Tons1200 – 1500 sf1250 – 1550 sf1300 – 1600 sf1350 – 1600 sf1400 – 1650 sf
3 Tons1500 – 1800 sf1500 – 1850 sf1600 – 1900 sf1600 – 2000 sf1650 – 2100 sf
3.5 Tons1800 – 2100 sf1850 – 2150 sf1900 – 2200 sf2000 – 2250 sf2100 – 2300 sf
4 Tons2100 – 2400 sf2150 – 2500 sf2200 – 2600 sf2250 – 2700 sf2300 – 2700 sf
5 Tons2400 – 3000 sf2500 – 3100 sf2600 – 3200 sf2750 – 3300 sf2700 – 3300 sf

Does Central Air Increase Home Value? Is Central Air Worth It?

Installing a central air conditioning system can enhance the comfort of your home and may increase property value. Prospective buyers often favor homes with reliable central air systems.

How Much Does Central Air Conditioning Cost to Run?

The cost to run central air conditioning depends on various factors including electric rates, SEER rating, and usage patterns:

Air Conditioning Cost to Run

AC TypeMonthly Cost to Run*
Central Air Conditioning$80 – $200
Ductless Mini-Split AC$30 – $150
Window AC Unit$12 – $120

How Long Do AC Units Last?

Air conditioning units have varying lifespans depending on usage, maintenance, and environmental factors. Typically, units last 10-15 years.

Signs an Air Conditioner Needs to Be Replaced

  • Frequent breakdowns
  • Inefficiency in cooling
  • Rising energy bills
  • Unusual noises

How Long Is an Average Air Conditioner Warranty?

The warranty on an air conditioning unit varies by manufacturer and can range between 5 and 10 years for essential parts, with some offering extended warranties for additional coverage.

How Long Does It Take to Install a Central AC Unit?

The installation of a central air conditioning unit can typically take 1 to 3 days, depending on the complexity of the installation and whether ductwork needs to be installed or modified.

What Is the Difference Between a Heat Pump and an Air Conditioner?

A heat pump can provide both heating and cooling by transferring heat, while an air conditioner only cools the air by removing heat from the indoor environment.

Getting AC Unit Replacement Quotes and Estimates

Questions to Ask AC Installers

  • Are you licensed and insured?
  • Can you provide a detailed written estimate?
  • What brands do you carry?
  • What is the warranty on the unit and installation service?
  • How long will the installation take?
  • Do you offer maintenance services?

By understanding these factors and asking the right questions, you can make an informed decision when installing or replacing your central air conditioning system. Please feel free to contact us for more detailed information and personalized estimates.

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