How much does it cost to install a 1.5-ton AC?

National Average Range:
$3,500 - $6,000

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Updated: August 18, 2022

Reviewed by Adam Graham remodeling expert. Written by

To provide you with the most accurate and up-to-date cost figures, we gather information from a variety of pricing databases, licensed contractors, and industry experts.

No matter your home size, a central air conditioning unit cools the rooms evenly during the hottest days. 1.5-ton air conditioners come in various types and efficiencies. The more efficient a unit is, the higher its upfront costs and the lower its monthly costs. 1.5-ton air conditioners are best in 600 to 1,000 sq.ft. homes. They can be found in standard split systems or packaged HVAC systems in a range of efficiencies and options.

The national average cost to install a 1.5-ton air conditioner is $3,500 to $6,000, with most homeowners spending $4,500 for a 1.5-ton split system with 16 SEER installed on a new concrete pad. This project’s low cost is $2,800 for a 1.5-ton split system with a SEER of 13 installed with no modifications or changes to the surrounding area. The high cost is $8,000 for a 1.5-ton packaged HVAC unit installed with moderate modifications to the ducts.

1.5-Ton AC Unit Cost Calculator

1.5-ton AC units are a good choice for small homes of 600 to 1,000 sq.ft. They can be found in three types - split systems, which are the least expensive and most common, packaged units, and packaged HVAC units, which combine heat and are the most expensive. They also come in efficiency ratings from 13 to 21, with 13 being the lowest efficiency with the lowest upfront costs but highest monthly costs and 21 being the highest efficiency with the highest upfront costs but lowest monthly costs. Below are the average costs to install 1.5-ton AC units of varying quality.

In addition to the unit quality and type, other factors can impact the total costs. 1.5-ton units use ducts to circulate the air through your home. If you need modifications to your ducts to install a new unit, this can impact your costs. In addition, the unit installs outside on a concrete pad. Installation costs increase if you need a new pad.

Additional Considerations and Costs

  • Lifespan. Most 1.5-ton air conditioners last 15 to 20 years with regular usage and maintenance.
  • Maintenance. Maintenance for a 1.5-ton AC unit includes changing the filter quarterly and having it serviced yearly by your HVAC technician.
  • Top manufacturers. Many quality brands manufacture 1.5-ton AC units. These include Trane, Carrier, Lennox, Rheem, Bryant, and York.
  • Mounting. 1.5-ton AC units are usually installed on a concrete pad. Costs increase if you need a new pad.
  • Permit. Permits may be required to install a new AC unit in many areas. Speak to your local municipality for more information.
  • Rebates. Some manufacturers offer rebates to lower your costs. You may also get rebates for installing a higher-efficiency unit in some areas. Speak to your installer about available rebates.


  • How much should I charge to install an AC unit?

Most installers charge $2,000 to $9,000 for the average AC unit installation.

  • How many square feet does a 1.5-ton AC cool?

A 1.5-ton AC unit cools 600 to 1,000 sq.ft., depending on your insulation and other factors.

  • How much is an AC unit for a 1,600 sq.ft. house?

An AC unit for a 1,600 sq.ft. home costs $3,000 to $8,000 fully installed.

  • How much should a 3-ton AC unit cost installed?

A 3-ton AC unit costs $4,000 to $7,000 fully installed, depending on your unit.