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Cost Estimate

HVAC Replacement Cost

What will it cost to replace my A/C?

How much to install a mini split?

How do I evaluate my HVAC estimate?

HVAC replacement cost may range from a minimum $3,000 to upwards of $12,500, which would include installation of both a new central A/C unit and gas furnace combo along with the cost of labor. If ductwork replacement is needed as well, you can expect an additional $2,500 for a typical single story 2,500 sq. ft home.

National Average Cost
Minimum Cost
Maximum Cost
Price with Ductwork
$6,000 – $10,000

HVAC Unit Costs

Most homeowners who are looking at replacing an HVAC system will typically check what their old heating and cooling unit types were to make a decision as to which HVAC unit works best for their home. However, there are many combinations of heating units and cooling units that you can choose from depending on your needs. We have broken out below the average costs to install each different type of HVAC unit in order to give you an idea on pricing:

HVAC Unit Type
Central AC
Ductless Split AC
Electric Furnace
Gas Furnace
Heat Pump
Low Cost
High Cost
Changing Your Central Heating and Air Conditioner's Filter
Silver and Gold

Which Factors Affect HVAC Replacement Costs?

HVAC installation costs will change depending on a few factors that are specific to your home. Here are the main things we will assess in order to give you a total price quote for your replacement HVAC system:
  • Current ductwork conditions
  • Home age and construction
  • HVAC unit features such as size, brand, and energy efficiency (SEER)
  • Unit brand and associated installation costs

Home Age and Construction

The ability to cool and heat your home at maximum efficiency will depend on how well insulated your home is and the size of your home. A 4,000 square foot home will need a much larger AC unit than a smaller home, which will affect installation costs. Also a house with energy efficient windows that are well insulated and sealed well will require far less AC capacity to keep temperatures comfortable. Other factors that can affect this could be the insulation elsewhere such as the walls, attics, flooring, and more.

See the chart below for the average central air conditioner replacement costs by tons.

AC Size
1.5 Tons
2 Tons
2.5 Tons
3 Tons
3.5 Tons
4 Tons
5 Tons
18,000 BTU
24,000 BTU
30000 BTU
36000 BTU
42000 BTU
48000 BTU
60000 BTU
AC Unit Only

Do You Need Your Ductwork Replaced?

If you are replacing your current air conditioning system, it’s pretty safe to assume that you already have ductwork. Ductwork is what delivers the conditioned air from your HVAC system throughout your home through vents. However, with time ductwork can lose its efficiency or may need to be altered to work with your new AC system. New or updated ductwork installation can tack on an additional cost anywhere from $2,000 to $4,000 depending on the level of difficulty to install or alter.