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Replacement HVAC Unit Installation Costs 

Estimating the cost to replace your HVAC system is the first step to being prepared for talking with contractors about a new HVAC installation for your home. The first thing you will want to know is exactly what type of heating and cooling system you want. Use our HVAC buying guide to learn more about the different types of HVAC systems. The most common types of HVAC systems are central air conditioners, heat pumps, and furnaces.

HVAC System Costs by Type

HVAC Installation CostsLow CostHigh CostHeating / Cooling
Central Air Conditioner Installation$3,500$7,600Cooling & Heating
Ductless HVAC System$3,000 $5,000Cooling & Heating
Electric Furnace Installation$1,500$2,500Heating
Gas Furnace Installation$4,000 $5,000Heating
Oil Furnace Installation$5,500$6,500Heating
Air Source Heat Pump Installation$5,000$6,500Heating & Cooling
Geothermal Heat Pump Installation$20,000$27,000Heating & Cooling

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How Much Does a Central AC Unit Cost? 

  • A central air conditioner costs from $3,500 to $7,525 depending on the HVAC unit brand, size of your AC unit needed, SEER ratings, and also the compressor performance capabilities (single, double, or variable performance.) Central air conditioner units often work with a furnace for a home’s heating and cooling needs. Let us get you exact & local prices.

AC Costs by SEER

SEER Efficiency RatingsAC Unit OnlyTotal - AC Unit + InstallationEnergy Efficiency Level
13-14 SEER$1,485$2,820Standard Efficiency
15-16 SEER$1,795$3,420High Efficiency
17-18 SEER$2,300$4,650High Efficiency
19-21 SEER$2,950$5,390Very High Efficiency
22-24 SEER$3,720$6,800Max Efficiency

AC Costs by Size - Tons

Central Air Conditioner SizeAC Unit BTUAC UnitTotal - AC Unit + Installation 
1.5 Tons18,000 BTU$980$2,000
2 Tons24,000 BTU$1,500$2,620
2.5 Tons30000 BTU$1,550$2,895
3 Tons36000 BTU$1,600$2,920
3.5 Tons42000 BTU$1,790$3,550
4 Tons48000 BTU$1,820$3,650
5 Tons60000 BTU$1,980$3,690

How Much Does a Ductless HVAC System Installation Cost?

  • Ductless HVAC systems, often called mini-split systems, are convenient to install and are a very energy efficient heating & cooling system option. Ductless mini split system costs range from $3,000 to $5,000 for the average sized home. It could be up to $9,500 for large whole house systems. Ductless HVAC installation usually includes one outside system & multiple indoor units for each room where cooling is needed. A ductless unit’s SEER rating will also determine total costs (available from 16 SEER to 30 SEER.) Let Modernize get you an exact price below. Let us get you exact & local prices:


How Much Does an Electric Furnace Installation Cost? 

  • Electric furnaces are HVAC units that push air through your home’s air ducts with an electric blower. The average electric furnace installation cost for a replacement unit is about $1,500 to $2,500. Electric furnaces are usually used in areas with a warm climate that central heating is not needed. You will pay more or less depending on the size needed for your home, the blower’s speed, and whether or not the motor is energy efficient or not (ECM vs. PCM.) Let us get you exact & local prices:


How Much Does a Gas Furnace Installation Cost?

  • Gas furnaces are the most common type of furnaces installed and offer a high energy efficiency. The average cost for a gas furnace installation is anywhere from $2,500 to $5,000 depending on size and energy efficiency. Let us get you exact & local prices:


How Much Does an Oil Furnace Installation Cost?

  • Oil furnaces are the least common type of furnace, and most homeowners would want to opt for a natural gas or propane burning furnace. However, if oil furnaces are your only option, the average installation cost for an oil furnace runs anywhere from $5,500 to $6,500. Let us get you exact & local prices:


How Much Does a Heat Pump Installation Cost? 

  • There are different kinds of heat pump installations to consider, the most common ductless air source heat pump installation will cost $3,500 to $6,500 total per indoor unit installed. However, a central air heat pump system will cost more ranging from $12,500 and $20,000.


Prices Per Square Foot – Home Size

If you are trying to figure out the cost of an HVAC system per square foot of your home’s area that needs heating and cooling, you can use this example to get an estimate of your HVAC installation costs:

  • If you were to install a new HVAC system in your  1000 square foot home with a combination of a new gas furnace, central air conditioner unit, and the ductwork labor, you could expect to pay in between $6,000 to $12,000 in total installation costs. If this is new construction, on a 1,200 to 2,400 sq. ft home it can cost between $1,200 to $4,200 in ductwork installation alone.

Additional HVAC System Costs

There are also HVAC costs that most likely are not included in the initial HVAC installation estimate but you will want to factor in, if applicable for your local installation prices. These are the things you should ask the HVAC contractor about and whether or not the cost is included in the initial estimate they’re providing. These include:

  • If a permit is required from your local city or county building department. The unit will also require an inspection by a representative of the building department to ensure the system is up to code.
  • If you live in an older home that has asbestos or lead paint, there may be an additional cost to test, remove, or replace the material.
  • If any of the following requires additional work involved with the installation process – plumbing, electrical work, removal of an existing system, installing the HVAC system at a new location, modifying the framing or surfacing of the home, or bringing any systems up to code – it will also factor into the cost estimate for your home’s new HVAC installation.

Hiring an HVAC Installer

A reliable HVAC contractor will be able to help you pick the perfect replacement HVAC system for your home . Once you’ve found a reliable contractor they will take all of the following things into consideration to help get you the best new home HVAC system:

  • tonnage size of the HVAC unit
  • number of BTUs
  • electric rate for kilowatt hours (kWh)
  • number of hours of the day unit will be in use
  • estimated hours of usage for the month
  • SEER- Seasonal Energy Efficiency Ratio
  • number of systems needed for the home

The average homeowner who uses Modernize saves money on their HVAC system installation project. When contractors compete, you receive the best quotes available. Modernize can help you feel certain that you’re receiving the best local prices from the most reliable contractors in your area with every home improvement project.

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