A complete new HVAC system, meaning a central air conditioner plus a gas furnace, typically costs $10,000 to $20,000 installed in 2026, with most homeowners paying around $12,000 to $16,000. A heat pump system that handles both heating and cooling typically costs $8,000 to $16,000, and $20,000 or more for high-end variable-speed or cold-climate equipment. New ductwork, electrical upgrades or premium equipment can push any project higher.
This guide breaks down the full cost of a new HVAC system and links to detailed guides for each piece.
Last updated: October 2026. Prices are typical U.S. ranges compiled from published contractor pricing and industry cost guides. Get at least three written quotes for your home.
New HVAC system cost at a glance
| System | Typical installed cost | Best for |
|---|---|---|
| Central AC + gas furnace (mid-efficiency) | $10,000 to $16,000 | Homes with gas and ducts, cold winters |
| Central AC + gas furnace (high-efficiency, variable-speed) | $15,000 to $25,000 | Maximum comfort and efficiency |
| Ducted heat pump (standard) | $8,000 to $14,000 | Mild and mixed climates |
| Ducted heat pump (cold-climate, variable-speed) | $11,000 to $20,000 | Cold climates, all-electric homes |
| Dual fuel (heat pump + gas furnace) | $12,000 to $22,000 | Cold climates with gas service |
| Ductless mini split (whole house, 4 to 5 zones) | $12,000 to $25,000 | Homes without ducts |
| Geothermal heat pump | $20,000 to $40,000+ | Long-term owners, large lots |
| Central AC only | $6,000 to $12,000 | Furnace still in good shape |
| Gas furnace only | $3,500 to $8,000 | AC still in good shape |
Detailed guides: central AC replacement cost, furnace replacement cost, heat pump installation cost, mini split installation cost per zone.
Cost by home size (AC + furnace, mid-efficiency)
| Home size | Typical system | Installed cost |
|---|---|---|
| 1,000 to 1,500 sq ft | 2 to 2.5 ton AC, 60,000 BTU furnace | $9,000 to $13,000 |
| 1,500 to 2,000 sq ft | 3 ton AC, 80,000 BTU furnace | $10,500 to $15,000 |
| 2,000 to 2,500 sq ft | 3.5 to 4 ton AC, 80,000 to 100,000 BTU furnace | $12,000 to $17,000 |
| 2,500 to 3,000 sq ft | 4 to 5 ton AC, 100,000 BTU furnace | $13,500 to $19,000 |
| Over 3,000 sq ft | Often two systems | $18,000 to $30,000+ |
Sizes vary by climate and insulation; insist on a Manual J load calculation. See what size AC do I need.
Where the money goes
- Equipment: roughly 40 to 60% of the total. Efficiency level and brand tier drive this.
- Labor: roughly 30 to 50%. Typical installs take 1 to 3 days for a two-person crew.
- Materials and extras: line sets, pads, venting, thermostat, permits and disposal.
Extra costs that surprise homeowners
| Item | Typical cost |
|---|---|
| New ductwork (whole house) | $5,000 to $15,000+ |
| Duct repair and sealing | $500 to $3,000 |
| Electrical panel upgrade (common with heat pumps) | $1,500 to $4,000 |
| Venting changes (80% to 95% furnace) | $500 to $2,000 |
| Chimney liner for a remaining water heater | $800 to $2,500 |
| Smart thermostat | $150 to $500 |
| Permits and inspections | $50 to $500 |
| Removing an old oil tank or boiler | $500 to $3,000 |
How efficiency affects cost
| Efficiency | Typical added cost | Benefit |
|---|---|---|
| Two-stage AC/heat pump or furnace | +$1,000 to $3,000 | Quieter, longer cycles, better humidity control |
| Variable-speed (inverter) AC/heat pump | +$3,000 to $6,000 | Highest efficiency and comfort |
| 95%+ AFUE furnace vs. 80% | +$1,000 to $3,000 | About 15% less gas use |
Higher efficiency pays back fastest where you heat or cool many hours a year. See heat pump vs. furnace for operating-cost math.
Rebates and incentives in 2026
The federal 25C Energy Efficient Home Improvement Credit ended for installations after December 31, 2025 (details). For 2026 projects, check utility rebates, state energy programs and manufacturer promotions, which can still add up to hundreds or thousands of dollars, especially for heat pumps.
Financing options
Many contractors and manufacturers offer financing, sometimes with promotional 0% periods. Compare the total cost, not just the monthly payment, against home equity loans or personal loans. See HVAC financing options compared.
How to get a fair price
- Get at least three written quotes from licensed, insured contractors.
- Require a Manual J load calculation; don’t accept sizing based only on the old equipment.
- Compare model numbers, efficiency ratings and AHRI-matched equipment, not just totals.
- Check what’s included: permits, electrical, ductwork, thermostat, disposal and warranty registration.
- Compare labor warranties (1 to 10 years) in addition to manufacturer parts warranties.
- Schedule in spring or fall if you can; peak-season emergencies leave less room to compare.
Repair or replace first?
If your system is under 10 years old, a repair is often the better value. Use the $5,000 rule in our repair vs. replace guide, and see typical AC repair costs.
Frequently asked questions
How much does a new HVAC system cost for a 2,000 square foot house?
Typically $11,000 to $16,000 for a mid-efficiency AC and furnace, or $9,000 to $14,000 for a standard heat pump.
How long does a new HVAC system last?
Central ACs and heat pumps typically last 12 to 15 years; gas furnaces 15 to 20 years or more.
Is it cheaper to replace the AC and furnace together?
Usually yes. You save on labor and get matched equipment, often $1,000 or more compared with two separate projects.
When is the best time to buy a new HVAC system?
Spring and fall, before peak demand, when contractors have more availability.
Disclaimer: prices are estimates for general information and are not quotes. Actual costs depend on your home, location, equipment and contractor.