HVAC Replacement Cost Calculator

Replacing one standard-efficiency central AC in a 2,000 sq ft home costs $4,200–$12,800 in the U.S., and most people pay around $9,040. This HVAC replacement cost calculator adjusts that range for your state, the system you want, your home size, the efficiency tier and the shape your ducts are in. The type of system moves the price more than anything else.

Cutaway of a house with an outdoor AC unit, indoor air handler and ducts, and a new unit waiting to be installed

Your project

National ballpark · one standard-efficiency central AC for a 2,000 sq ft home, keeping the ducts

Low$4,200
Typical$9,040
High$12,800

This is a planning range, not a quote.

Limited data: permit fee (sources disagree). The real range may be wider.

CostLowTypicalHigh
Equipment$2,300$4,860$6,830
Labor$1,700$3,600$5,050
Old unit removal$75$260$450
Permit (varies by city) national$130$310$500
Total$4,200$9,040$12,800

How this HVAC replacement cost calculator works

Enter your ZIP code, the number of units, the system type, your home size, the efficiency tier and what needs to happen with the ducts. The calculator starts from an installed price for that system, scales it for your home size, adds any efficiency upgrade and duct work, then adds old-unit removal and the permit. Last, it adjusts the result for wages and prices in your state.

You get a low, typical and high price. Low is a simple swap with easy access and no surprises. Typical is where most quotes land. High covers tight attics, extra wiring, larger units and busy seasons. The breakdown splits the bill into equipment, labor, removal and the permit, so you can hold it next to a contractor's quote line by line.

The state adjustment uses construction wages from the Bureau of Labor Statistics for the labor share and regional price levels from the Bureau of Economic Analysis for the equipment share. Permit fees stay at the national range, because cities set them. The full method is on our How we calculate page.

HVAC replacement cost by system

The system you pick sets the starting price. A central AC replaces only the cooling side. Furnace + AC replaces both halves of a split system at once. A heat pump heats and cools with one outdoor unit. A ductless mini-split puts small indoor units on the walls and skips ducts entirely.

OptionLowTypicalHighUnit
Central AC$4,000$8,460$11,900job
Furnace + AC$7,250$10,500$16,500job
Heat pump *$5,500$9,000$15,000job
Ductless mini-split$2,000$8,220$10,500job

* Limited data: one source, sources that disagree widely, or a single figure.

Four HVAC systems side by side: central AC, furnace with AC, heat pump and a ductless mini-split

Furnace + AC is the most expensive job in the table, because you're buying two pieces of equipment. Heat pump prices vary the most between our sources, so the range for that row is wider than the others.

Central air cost calculator: AC unit replacement

For most homes with ducts already in place, the job is a central AC swap. A standard-efficiency unit for a 2,000 sq ft home runs $4,000–$11,900 installed, typical $8,460. Removal of the old unit ($75–$450, typical $260) and the permit bring the total to $4,200–$12,800.

If your furnace is about as old as the AC, ask for a price on both. Replacing them together runs $7,450–$17,500, typical $11,100, and it saves a second visit later. If the furnace is fairly new, an AC-only swap is usually the simpler path.

Mini split cost calculator: ductless systems

A ductless mini-split runs $2,000–$10,500 installed in our data, typical $8,220. The low end is a single room. The high end is several indoor heads served from one or more outdoor units. With removal and the permit, the calculator shows $2,200–$11,500, typical $8,800.

Mini-splits make the most sense in homes without ducts, in an addition, or in a room the main system never reaches well. If you pick ductless, leave the ductwork setting on "keep," since there are no ducts to repair.

Heat pump replacement

A heat pump replacement runs $5,700–$16,000 for our 2,000 sq ft example, typical $9,580. Our sources disagree more on heat pumps than on any other system here, so treat this range as rough. The heat pump cost calculator goes deeper on efficiency tiers and ducts for that one system.

What affects the price

Home size

A bigger home usually needs more tonnage (cooling capacity; bigger homes need more tons), and that raises the price. The calculator scales your system price by the typical price of the nearest home-size bracket compared with a 2,000 sq ft home.

OptionLowTypicalHighUnit
1,000 sq ft *$3,000$4,500$6,000job
1,500 sq ft$3,750$6,500$9,500job
2,000 sq ft$4,750$8,500$12,000job
2,500 sq ft *$6,000$8,000$10,000job
3,000 sq ft$6,750$12,000$18,500job

* Limited data: one source, sources that disagree widely, or a single figure.

This table is uneven. The 2,500 sq ft bracket comes from one source, and its typical price sits below the 2,000 sq ft bracket. A bigger home shouldn't come out cheaper, so the calculator prices a 2,500 sq ft home at least as high as a 2,000 sq ft one. The 1,000 sq ft bracket is also single-source, so treat the small-home figure as rough.

Efficiency tier

Air conditioners and heat pumps carry a SEER2 rating (cooling efficiency; higher uses less electricity). A higher tier costs more up front. In our data the high tier adds $900–$2,000 (typical $1,450) and the premium tier $2,500–$6,000 (typical $4,250). Sources disagree on both, so the upgrade ranges are rough. For the central AC example, high efficiency moves the total to $5,100–$14,800, and premium to $6,700–$18,800.

Ductwork

Keeping your ducts adds nothing. Repairs add $850–$3,500 and full replacement $2,100–$4,000, with a wide spread between sources on replacement. Leaky or undersized ducts can make a new system work harder, which is why many contractors look at them before quoting.

Old unit removal and the permit

Removal and disposal of the old unit run $75–$450, typical $260. Permits run $130–$500, typical $310. Some quotes fold both into one price, and some list them separately.

Number of units

Larger homes sometimes have two systems, one for each floor. Set the number of units to match what you're replacing. The calculator prices each one at the same size and tier.

When to budget toward the high end

The typical price assumes an easy swap: the new unit fits the old pad and connections, the electrical service is fine and the installer can reach the equipment. Plan nearer the high number if the indoor unit sits in a cramped attic or crawl space, if the electrical panel needs work, if the refrigerant lines need replacing, or if you're switching from one system type to another. A switch, such as from a furnace and AC to a heat pump, often brings extra wiring and duct changes.

HVAC cost by state

Labor is a bit under half of an HVAC bill, so local wages explain most of the gap between states. For our central AC example, the typical price runs from $7,930 in Arkansas and $8,090 in Alabama to $10,200 in Illinois, $10,300 in Alaska and $10,800 in the District of Columbia.

Ways to lower the cost

  • Match the system to the job. If only the AC is failing and the furnace is young, an AC-only swap costs far less than replacing both.
  • Get the size right. Ask each contractor how they sized the unit. A load calculation beats matching the old unit's tonnage.
  • Weigh the efficiency tier. A premium tier adds thousands up front; ask each contractor how the tiers compare for your climate and use.
  • Fix ducts only where needed. Ask for the duct test results before agreeing to full replacement.
  • Ask about timing. If your old system still runs, ask whether a slower season changes the price.

Hiring tips

Get at least three written quotes for the same system: same type, size, efficiency tier and duct work. Ask each contractor to list equipment, labor, removal, duct work and the permit as separate lines, then compare them with the breakdown above. A quote far below our low number deserves questions about what's left out, such as the line set, the pad or the thermostat.

Ask how the contractor sized the new system and whether they checked the ducts. Get the equipment model, the warranty terms on parts and labor, and the start date in writing. Check that the company has a license where your state requires one, and ask for proof of insurance. Bring the ballpark. Ask for the line items.

If you're also weighing a heating-only job, the furnace replacement cost calculator prices furnaces by fuel, size and AFUE. Other home system jobs are on the Home Systems page.

FAQ

How much does it cost to replace an HVAC system?

For one standard-efficiency central AC in a 2,000 sq ft home, plan on $4,200–$12,800, with a typical bill near $9,040. A furnace and AC replaced together run $7,450–$17,500 (typical $11,100), and a heat pump $5,700–$16,000 (typical $9,580). Enter your ZIP above for your state's range.

How much does a mini-split cost?

In our data a ductless mini-split job runs $2,000–$10,500 installed, typical $8,220. With old-unit removal and the permit added, the calculator shows $2,200–$11,500, typical $8,800. Multi-room setups with several indoor heads are what push a mini-split toward the high end.

How much does a new central air conditioner cost?

A standard-efficiency central AC for a 2,000 sq ft home runs $4,000–$11,900 installed, typical $8,460, before removal of the old unit and the permit. With those two lines added, the total is $4,200–$12,800. A high-efficiency unit raises the typical price to $10,500.

Is an HVAC cost calculator accurate?

It gives you a planning range, not a quote. Our prices come from public cost guides, adjusted for wages and prices in your state. A contractor who checks your ducts, wiring, attic and the space around the outdoor unit can see things no calculator can, so the real quote may land anywhere inside the range.

Do I need a permit to replace an AC or heat pump?

Many cities require a mechanical permit for a new system. Permit fees in our data run $130–$500, typical $310, but our sources disagree, so the range is rough. Ask each contractor whether the fee is in the price and who pulls the permit.

Does replacing the ductwork change the price much?

Yes. Repairing ducts adds $850–$3,500 (typical $2,180), and replacing them adds $2,100–$4,000 (typical $3,500). For our central AC example, new ducts move the total to $6,300–$16,800, typical $12,500. Ask for a duct inspection before you decide.

Is labor or equipment the bigger part of the bill?

Equipment, but not by much. Our sources put labor at roughly 40–50% of an HVAC job, and the calculator splits your estimate with labor at 42.5%. For the default central AC that means about $3,600 of labor and $4,860 of equipment at the typical price.

Sources and method

National prices from public cost guides, collected 2026-10-18; state adjustment from BLS wages and BEA price levels.

  1. Bob Vila · updated Apr 2024
  2. Carrier · undated
  3. ConsumerAffairs · updated May 2026
  4. HomeAdvisor · updated Jun 2026
  5. HVACDirect · updated Aug 2026
  6. Modernize · undated
  7. PICKHVAC · May 2026
  8. PICKHVAC · May 2026
  9. PICKHVAC · May 2026
  10. Sears Home Services · updated Jan 2026
  11. This Old House · updated Sep 2026
  12. This Old House · updated May 2026

How we calculate