Cost to Replace Your HVAC System

By / April 4, 2024

This HVAC replacement cost estimator was designed by our HVAC industry experts to help you determine the total cost of parts, equipment and installation for a central ac unit (AC condenser and evaporator coil) or heat pump system, as well as units installed with air handler, oil or gas furnace. Our calculator works specifically on split system HVAC units, but if you have a packaged HVAC system (all in one), use our packaged HVAC calculator instead.

HVAC System Replacement Cost Calculator

HVAC System Cost Calculator
Step 1: Where Do You Live?
We need to start with your zip code and state in order to set local equipment and labor cost factors near you.

About Your Home and HVAC System

Step 2: Current System Information

Next, we need to know the type of HVAC system currently installed at your home, as well as its working condition, system age, scope of the replacement project, and a few other details about your overall HVAC system.

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Central Air and Evaporator Coil Replacement Cost Estimates

Shown below are cost estimates to replace your current AC unit and coil only. The low cost estimate is a standard efficiency AC unit and coil with basic features and few options. The high cost estimate is for a high efficiency AC unit with more energy saving and comfort features.
Since your current system is older than 10 years, we've added extra installation supplies and labor cost, to accommodate for bringing the system up to current code and other variables most often encountered when replacing an older central ac system.

Low Cost Estimate

  • Standard Efficiency Central Air
  • 14-15 SEER
  • Matching Evaporator Coil
  • Low to Moderate Noise Level
  • 2-4 Star Brand Quality
  • Plenum and Minor Duct Work
  • Permits & Inspection as Needed
  • Installation and Labor

High Cost Estimate

  • High Efficiency Central Air
  • 16-18 SEER
  • Matching Evaporator Coil
  • Low Noise Level
  • 4-5 Star Brand Quality
  • Plenum and Minor Duct Work
  • Permits & Inspection as Needed
  • Installation and Labor

Central AC and Air Handler Replacement Cost Estimates

Shown below are cost estimates to replace your current ac unit and a matching air handler (with or without a heat strip). The low estimate includes a standard efficiency central ac unit and fan coil with basic features and few options. The high replacement cost estimate is for a high efficiency HVAC system, with better energy saving and comfort features.
Since your current system is older than 10 years, we've added extra installation supplies and labor cost, to accommodate for bringing the system up to current code and other variables most often encountered when replacing an older central ac system.

Low Cost Estimate

  • Standard Efficiency Central Air
  • 14-15 SEER
  • Matching Air Handler and Coil
  • Low to Moderate Noise Level
  • Single / Multiple Speed Blower
  • Basic Thermostat
  • 2-4 Star Brand Quality
  • Plenum and Minor Duct Work
  • Permits & Inspection as Needed
  • All Installation and Labor Cost

High Cost Estimate

  • High Efficiency Central Air
  • 16-20 SEER
  • Matching Air Handler and Coil
  • Low to No Noise Level
  • Modulating / Variable Blower
  • Smart Thermostat
  • 4-5 Star Brand Quality
  • Plenum and Minor Duct Work
  • Permits & Inspection as Needed
  • All Installation and Labor Cost

Central AC and Gas Furnace Replacement Cost Estimates

Shown below are cost estimates to replace your current ac unit, evaporator coil and gas furnace. The low estimate includes a standard efficiency system with basic features and few options. The high replacement cost estimate is for a high efficiency HVAC system, with better energy saving and comfort features.
Since your current system is older than 10 years, we've added extra installation supplies and labor cost, to accommodate for bringing the system up to current code and other variables most often encountered when replacing an older central ac system.

Low Cost Estimate

  • Standard Efficiency Central Air
  • 14-16 SEER
  • 80-90% AFUE Gas Furnace
  • Matching Evaporator Coil
  • Low to Moderate Noise Level
  • Single / Multiple Speed Blower
  • Basic Thermostat
  • 2-4 Star Brand Quality
  • Plenum and Minor Duct Work
  • Permits & Inspection as Needed
  • All Installation and Labor Cost

High Cost Estimate

  • High Efficiency Central Air
  • 16-20 SEER
  • 90-98% AFUE Gas Furnace
  • Matching Evaporator Coil
  • Low to Moderate Noise Level
  • Modulating / Variable Blower
  • Smart Thermostat
  • 4-5 Star Brand Quality
  • Plenum and Minor Duct Work
  • Permits & Inspection as Needed
  • All Installation and Labor Cost

Heat Pump and Air Handler Replacement Cost Estimates

Shown below are cost estimates to replace your current heat pump unit, air handler and heat strip. The low estimate includes a standard efficiency system with basic features and few options. The high replacement cost estimate is for a high efficiency HVAC system, with better energy saving and comfort features.
Since your current system is older than 10 years, we've added extra installation supplies and labor cost, to accommodate for bringing the system up to current code and other variables most often encountered when replacing an older central ac system.

Low Cost Estimate

  • Standard Efficiency Heat Pump
  • 14-16 SEER / 8-9 HSFP
  • Standard Air Handler w/Coil
  • Low to Moderate Noise Level
  • Single / Multiple Speed Blower
  • Basic Thermostat
  • 2-4 Star Brand Quality
  • Plenum and Minor Duct Work
  • Permits & Inspection as Needed
  • All Installation and Labor Cost

High Cost Estimate

  • High Efficiency Heat Pump
  • 16-20 SEER / 9+ HSFP
  • High Efficiency Air Handler w/Coil
  • Low to Moderate Noise Level
  • Modulating / Variable Blower
  • Smart Thermostat
  • 4-5 Star Brand Quality
  • Plenum and Minor Duct Work
  • Permits & Inspection as Needed
  • All Installation and Labor Cost

Heat Pump and Gas Furnace Replacement Cost Estimates

Shown below are cost estimates to replace your current heat pump unit, evaporator coil and gas furnace. The low estimate includes a standard efficiency system with basic features and few options. The high replacement cost estimate is for a high efficiency HVAC system, with better energy saving and comfort features.

Since your current system is older than 10 years, we've added extra installation supplies and labor cost, to accommodate for bringing the system up to current code and other variables most often encountered when replacing an older central ac system.

Low Cost Estimate

  • Standard Efficiency Heat Pump
  • 14-16 SEER / 8-9 HSFP
  • 80-90% AFUE Gas Furnace
  • Matching Evaporator Coil
  • Low to Moderate Noise Level
  • Single / Multiple Speed Blower
  • Basic Thermostat
  • 2-4 Star Brand Quality
  • Plenum and Minor Duct Work
  • Permits & Inspection as Needed
  • All Installation and Labor Cost

High Cost Estimate

  • High Efficiency Heat Pump
  • 16-20 SEER / 9+ HSFP
  • 90-98% AFUE Gas Furnace
  • Matching Evaporator Coil
  • Low to Moderate Noise Level
  • Modulating / Variable Blower
  • Smart Thermostat
  • 4-5 Star Brand Quality
  • Plenum and Minor Duct Work
  • Permits & Inspection as Needed
  • All Installation and Labor Cost

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Replacement Cost Estimate Details

When you replace your home HVAC system, it’s essential that you have a precise understanding of what is included in the estimate and what could lead to extra charges by the heating and air company. We built this HVAC replacement estimator to offer you a clear and transparent overview of the services and materials included, ensuring that you’re well-informed about every aspect of the replacement process.

Included in this HVAC System Estimate

  • New HVAC system components, including delivery to your home.
  • Removal and disposal of your current system equipment, and all parts and components being replaced.
  • Standard installation service, including all labor cost for installing the new HVAC system, basic electrical fittings and connectors and re-plumbing the condensate drain and/or overflow system to your existing drains. As you complete the cost calculator and select the type of HVAC system you have, a parts-list is included within the calculator showing exactly what is included in this replacement cost estimate.
  • Permit and inspection fees (as needed), to assure the installation meets local safety codes and standards.

Not Included in this Cost Estimate

  • Major electrical or duct modifications to existing systems that are beyond the scope of a simple changeout replacement.
  • Upgrades to existing mechanical systems that are now part of code enforcement and required when replacing an HVAC system, connecting to existing electric, natural gas or plumbing sources.
  • Structural modifications and any construction work required to accommodate the new HVAC system, such as may be required in coastal areas where they are built onto platforms or installed on a roof.

Calculate Replacement Cost for these Types of HVAC Systems

Our replacement cost calculator is designed for split-system HVAC units, meaning you have a condensing unit outside your home that connects to an air handler or gas furnace which is installed inside your home, and the units are connected by electrical wires and a refrigerant line set. All estimates generated with this tool include a new outdoor condensing unit pad, new thermostat, minor duct modifications to connect the new HVAC to the existing duct, as well as a condensate pump as needed and all refrigerant to assure the system is fully charged.

Central AC Only System

  • AC Unit and Evaporator Coil Only

Central Air with Gas or Electric Heat

  • AC Unit and Air Handler with Built-in Coil
  • AC Unit with a Gas Furnace and Coil

Heat Pump System with Gas or Electric Heat

  • Heat Pump with a Gas Furnace and Evaporator Coil
  • Heat Pump with an Air Handler and Heat Strip

References and Data Sources

Along with our own data, we make use of several trusted resources to gather the data used in our HVAC cost calculators. It assures you the most accurate cost estimates based on scientific data from trusted resources around the USA.