HVAC Replacement Cost: New System Prices for 2026
When a furnace or air conditioner fails, the quote is often for more than one piece of equipment. Contractors may suggest replacing the furnace and AC together, switching to a heat pump, or adding ductless units. Each path has a different price, and the totals can range from a few thousand dollars to well over $20,000.
TheRemodelers works with licensed HVAC contractors to help homeowners understand what a full system replacement costs, when replacing makes more sense than repairing, and how to pay for it. For a plain-language overview of how each system works, see our complete guide to home HVAC systems.
This guide pulls the numbers together in one place: whole-system prices, single-system prices, the signs it is time to replace, and the financing options worth comparing.
HVAC Replacement Cost at a Glance
Most whole-system replacements fall between $6,000 and $16,000. The table shows typical installed totals for the most common projects, assuming the home’s existing ductwork or radiators can be reused.
Replacement Project | Typical Installed Cost |
|---|
Furnace + central AC, standard efficiency | $6,000 – $10,500 |
Furnace + central AC, mid-tier two-stage | $10,000 – $16,000 |
Furnace + central AC, high-efficiency variable-speed | $15,500 – $24,000+ |
Ducted heat pump replacing both furnace and AC | $4,000 – $15,000+ |
Ductless mini split system (1–4 zones) | $2,000 – $15,000 |
Boiler (heat only) | $4,000 – $12,000 |
Furnace-and-AC totals combine the matching furnace and AC tiers from the table below. Your own quote can mix tiers, such as a standard furnace with a mid-tier AC.
What Each System Costs on Its Own
If only one piece of equipment needs replacing, these are the typical installed ranges. Each guide breaks down the price by efficiency tier and fuel type.
System | Typical Installed Cost | Full Cost Guide |
|---|
Gas, electric, or oil furnace | $2,000 – $10,000+ | Furnace replacement cost |
Central air conditioner | $3,500 – $14,000+ | Central AC installation cost |
Ducted heat pump | $4,000 – $15,000+ | Heat pump installation cost |
Ductless mini split | $2,000 – $15,000 | Mini split installation cost |
Boiler | $4,000 – $12,000 | Boiler replacement cost |
Replacing the Furnace and AC Together
In most ducted homes, the furnace and air conditioner work as one system. The furnace’s blower moves the cooled air, and the AC’s indoor coil usually sits on top of the furnace. That is why many contractors recommend replacing both at once when either one fails.
Replacing both together makes sense when:
Both units are near the end of their life. Furnaces and central ACs typically last 15 to 20 years, so equipment installed together often wears out together.
You want matched equipment. The AC’s outdoor unit and indoor coil must be a matched pair, and the furnace blower has to move enough air for the new AC.
The AC still uses R-22. Systems installed before about 2010 may use R-22, whose U.S. production ended in 2020, so repairs that need refrigerant are expensive.
You want to avoid paying for labor twice. One visit to remove, install, and test both units usually costs less than two separate jobs.
Replacing only the failed unit is reasonable when the other one is young, efficient, and compatible with the new equipment. Ask the contractor to check the blower, coil, and refrigerant lines before quoting a single-unit replacement.
Heat Pump vs. Furnace and AC
A heat pump heats and cools from one system, so it can replace both a furnace and an air conditioner. A ducted heat pump typically costs $4,000 to $15,000 or more installed, which can be less than a matched furnace-and-AC package.
The tradeoff is cold-weather performance. Standard heat pumps lose heating capacity as temperatures drop and lean on backup electric heat. Cold-climate models hold their output well below freezing but cost $9,000 to $15,000 or more.
In mild and moderate climates, a heat pump is often the simpler choice. In very cold climates, compare it against a high-efficiency furnace.
Keep two other points in mind. The federal heat pump tax credit ended for equipment installed after December 31, 2025, so 2026 installations do not qualify. And new heat pumps and central ACs now use A2L refrigerants, mainly R-454B and R-32, so the indoor and outdoor components must be designed for the same refrigerant.
When to Replace Your HVAC System
There is no single age or repair cost that decides it, but these signs point toward replacement over repair:
Age. Furnaces and central ACs typically last 15 to 20 years, heat pumps 10 to 15, mini splits 15 to 20, and boilers 15 to 30. Equipment at or past that range is a candidate for replacement.
Repeated or costly repairs. When the same system needs major repairs season after season, the money often does more good toward new equipment.
R-22 refrigerant. An R-22 system with a refrigerant leak is expensive to recharge, which often tips the decision.
Safety problems. A cracked furnace heat exchanger can leak carbon monoxide and usually means replacement.
Rising bills or uneven comfort. Older, lower-efficiency equipment costs more to run and may struggle to keep every room comfortable.
Before deciding, get a repair quote and a replacement quote from the same contractor so you can compare them directly. If the system is still sound, the repair guides for each system on our HVAC hub explain what common repairs cost.
What Drives the Total Cost
Efficiency Ratings
Higher efficiency costs more upfront and less to run. Furnaces and boilers are rated by AFUE, central ACs by SEER2, and heat pumps by SEER2 for cooling and HSPF2 for heating. The federal minimum is 80% AFUE for most gas furnaces, 13.4 SEER2 for central AC in northern states (14.3 in the South and Southwest), and 14.3 SEER2 and 7.5 HSPF2 for split heat pumps.
Sizing and Load Calculation
Equipment should be sized with a Manual J load calculation, which accounts for square footage, insulation, windows, and climate. Oversized equipment short-cycles, which hurts comfort and humidity control and wears parts faster. Undersized equipment runs constantly and struggles on extreme days.
Ductwork
The prices above assume the existing ducts can be reused. Leaky, undersized, or poorly configured ductwork adds cost, and a home with no ducts at all usually points toward a mini split or a boiler-based system instead of central air.
Fuel, Venting, and Electrical Changes
Switching fuels, moving to a high-efficiency furnace or condensing boiler that vents through PVC, or adding a circuit for a heat pump or mini split all add labor and materials. Ask for these items to be listed separately on the quote.
Permits and Location
Most jurisdictions require a permit and inspection for furnace, boiler, AC, and heat pump replacement. Labor rates and permit fees vary by region, and installations in higher cost-of-living areas run toward the top of these ranges.
How to Pay for a New HVAC System
A new system is a large expense, and many homeowners finance at least part of it. The main options:
Contractor or manufacturer financing. Often the easiest to set up. Read promotional terms closely: some “no interest” offers charge all the deferred interest if the balance isn’t paid in full by the deadline.
Home equity loan or line of credit. Usually lower rates than unsecured loans because your home secures the debt, but approval takes longer and the home is at risk if you can’t pay.
Personal loan. Faster to arrange than home equity financing, with fixed payments, but typically at a higher rate.
Credit card. Convenient for a small balance or an emergency, but usually the most expensive way to carry a large balance.
Utility programs and rebates. Some utilities offer on-bill financing or rebates for efficient equipment. The federal 25C tax credit ended for equipment installed after December 31, 2025, so check state and utility programs through the DSIRE database.
Whatever you choose, compare the annual percentage rate and the total amount you will repay, not just the monthly payment. Ask the contractor for a cash price and a financed price so you can see what the financing really costs. This guide is general information, not financial advice.
How to Get an Accurate Quote
A Manual J load calculation, not sizing based on the old equipment or square footage alone
An itemized quote that prices each unit, the ductwork, venting, electrical work, permits, and old-equipment removal separately
Efficiency ratings in writing (AFUE, SEER2, and HSPF2 where they apply) and the refrigerant the new equipment uses
A ductwork evaluation before the quote, not after the old system is out
Warranty details, including who registers the manufacturer’s warranty and by what deadline, and the contractor’s labor warranty in writing
EPA Section 608 certification for anyone handling refrigerant
Get at least three written quotes for the same scope of work. Comparing a furnace-and-AC quote from one contractor with a heat pump quote from another is useful, as long as each quote is complete.
Final Thoughts
A new HVAC system is one of the biggest purchases a homeowner makes, and the right choice depends on what you have now, your climate, and how long you plan to stay. Replacing aging equipment together, sizing it properly, and comparing complete, itemized quotes are what keep the project on budget and the system comfortable for years.
Ready to compare real prices for your home? Home Services Pros matches homeowners with licensed HVAC contractors in their area for free, no-obligation estimates. You can also call (833) 586-2038 to get started.
Frequently Asked Questions
How much does it cost to replace an HVAC system?
Most whole-system replacements cost $6,000 to $16,000 installed. A standard-efficiency furnace and central AC together typically run $6,000 to $10,500, a mid-tier pair $10,000 to $16,000, and a high-efficiency pair $15,500 to $24,000 or more. A ducted heat pump that replaces both runs $4,000 to $15,000 or more.
Should I replace my furnace and AC at the same time?
Often, yes, if both are near the end of their 15-to-20-year life. The two units share a blower and a matched coil, and one installation visit usually costs less than two. If one unit is young and compatible, replacing only the failed unit can make sense.
Is a heat pump cheaper than a furnace and AC?
Often, upfront. A ducted heat pump typically costs $4,000 to $15,000 or more and replaces both units, while a furnace-and-AC pair usually runs $6,000 to $16,000. Cold-climate heat pumps cost more, and in very cold areas a high-efficiency furnace may still be the better fit.
How long do HVAC systems last?
Furnaces and central air conditioners typically last 15 to 20 years, heat pumps 10 to 15 years, mini splits 15 to 20 years, and boilers 15 to 30 years. Annual maintenance helps equipment reach the upper end of those ranges.
What is the best way to finance a new HVAC system?
It depends on your situation. Contractor or manufacturer financing is convenient, home equity loans usually have lower rates, and personal loans are quicker to arrange. Compare the APR and total repayment, and check deferred-interest terms carefully. Look up state and utility rebates as well, since the federal 25C credit has ended.
How long does it take to replace an HVAC system?
A central AC or furnace replacement typically takes one day, and a heat pump one to two days. Replacing a furnace and AC together usually takes one to two days. Ductwork, venting, or fuel changes can add more time.
