United States calculator
HVAC Replacement Cost Calculator
Estimate the cost to replace your home's heating and cooling system. Adjust the conditioned area, system type, efficiency tier, and whether you're replacing ductwork to see an itemized low–high range for your project.
How this calculator is built
Unit costs with sources
This model cites 5 sources across line-item unit costs, regional labor data, and tax references.
Regional labor adjustment
The state table applies local labor indexes only to labor-heavy line items.
Published methodology
The methodology page lists the formula, size drivers, labor model, and source links.
Estimate your project
Change the default inputs to match your scope. The breakdown updates by line item.
HVAC Replacement Cost by state: typical ranges
Each range applies that state's labor index to the labor-share line items of the default project; materials stay at national prices. Select a state for its full local breakdown and calculator.
| State | Typical range | Labor index | Permit |
|---|---|---|---|
| Alabama | $8,999–$14,076 | 75% | Likely |
| Alaska | $11,339–$17,736 | 123% | Likely |
| Arizona | $9,731–$15,220 | 90% | Likely |
| Arkansas | $9,146–$14,305 | 78% | Likely |
| California | $11,193–$17,507 | 120% | Likely |
| Colorado | $10,267–$16,058 | 101% | Likely |
| Connecticut | $10,462–$16,363 | 105% | Likely |
| Delaware | $10,023–$15,677 | 96% | Likely |
| Florida | $9,243–$14,457 | 80% | Likely |
| Georgia | $9,097–$14,228 | 77% | Likely |
| Hawaii | $11,827–$18,498 | 133% | Likely |
| Idaho | $9,487–$14,838 | 85% | Likely |
| Illinois | $11,291–$17,660 | 122% | Likely |
| Indiana | $10,169–$15,906 | 99% | Likely |
| Iowa | $9,633–$15,067 | 88% | Likely |
| Kansas | $9,779–$15,296 | 91% | Likely |
| Kentucky | $9,438–$14,762 | 84% | Likely |
| Louisiana | $9,194–$14,381 | 79% | Likely |
| Maine | $10,023–$15,677 | 96% | Likely |
| Maryland | $10,462–$16,363 | 105% | Likely |
| Massachusetts | $11,242–$17,583 | 121% | Likely |
| Michigan | $9,974–$15,601 | 95% | Likely |
| Minnesota | $10,559–$16,516 | 107% | Likely |
| Mississippi | $8,999–$14,076 | 75% | Likely |
| Missouri | $10,169–$15,906 | 99% | Likely |
| Montana | $9,779–$15,296 | 91% | Likely |
| Nebraska | $9,438–$14,762 | 84% | Likely |
| Nevada | $10,511–$16,440 | 106% | Likely |
| New Hampshire | $10,121–$15,830 | 98% | Likely |
| New Jersey | $10,706–$16,745 | 110% | Likely |
| New Mexico | $9,633–$15,067 | 88% | Likely |
| New York | $10,998–$17,202 | 116% | Likely |
| North Carolina | $9,097–$14,228 | 77% | Likely |
| North Dakota | $9,633–$15,067 | 88% | Likely |
| Ohio | $9,974–$15,601 | 95% | Likely |
| Oklahoma | $9,048–$14,152 | 76% | Likely |
| Oregon | $10,608–$16,592 | 108% | Likely |
| Pennsylvania | $10,023–$15,677 | 96% | Likely |
| Rhode Island | $10,121–$15,830 | 98% | Likely |
| South Carolina | $9,438–$14,762 | 84% | Likely |
| South Dakota | $9,146–$14,305 | 78% | Likely |
| Tennessee | $9,341–$14,610 | 82% | Likely |
| Texas | $9,146–$14,305 | 78% | Likely |
| Utah | $9,438–$14,762 | 84% | Likely |
| Vermont | $9,926–$15,525 | 94% | Likely |
| Virginia | $9,438–$14,762 | 84% | Likely |
| Washington | $11,242–$17,583 | 121% | Likely |
| West Virginia | $9,097–$14,228 | 77% | Likely |
| Wisconsin | $10,169–$15,906 | 99% | Likely |
| Wyoming | $9,731–$15,220 | 90% | Likely |
Common questions
How much does it cost to replace an HVAC system?
Replacing a full furnace-and-AC system typically runs about $10,000–$16,000 installed for a mid-size home with the existing ducts reused, and more if you add or replace ductwork. A single unit, a mini-split, or a standard-efficiency tier costs less. Use the calculator above for a range matched to your home size, system type, and efficiency.
Should I replace the furnace and AC at the same time?
If both units are near the end of their life, replacing them together is usually cheaper than two separate jobs — the crew shares one trip, one set of permits, and matched components run more efficiently. Choose 'Full system (furnace + AC)' to price both; pick a single component if only one unit has failed.
Which efficiency tier should I choose?
Standard efficiency is the budget choice; high-efficiency (higher SEER2/AFUE/HSPF2) is the durable mid-grade that lowers running costs; premium variable-speed equipment sits at the top for comfort and the deepest energy savings. Pick the tier that matches your climate and budget — the calculator scales the estimate accordingly.
Reviewed guides