AC Replacement Cost in Montana
$3,800 – $9,050We estimate AC replacement in Montana at $3,800 to $9,050 for a central AC outdoor unit and matching coil on existing ductwork. The national estimate is $3,800 to $9,050. Montana HVAC technician pay is 0% below the national median, ranking 26 of 51.
| Part of the job | Low | High |
|---|---|---|
| Parts and materials (our assumption) | $3,500 | $8,000 |
| Labor hours (our assumption) | 4 | 8 |
| Billed labor rate per hour | $73 | $132 |
| Estimated total | $3,800 | $9,050 |
Our estimate, not a quote. Billed rate is the Montana median wage from BLS (2025, $29.26 an hour) times 2.5 to 4.5 to cover payroll costs, overhead, travel and profit. How we estimate
What our assumptions are based on
| Item | Sourced figure | Basis | Source |
|---|---|---|---|
| Parts | $2,555 – $3,550 | Budget Heating listed prices for 3-ton split systems with a condenser and air handler, not a condenser and coil. Two models listed: $2,555 and $3,550 (the second, a wall-mount apartment type, also on sale at $2,630). | Budget Heating |
| Labor hours | 4 – 8 | 4 to 8 hours for a typical AC replacement (Today's Homeowner). Bob Vila says about 3 to 5 days for a full system replacement. | Today's Homeowner |
What other publishers report
| Publisher | Low | High | Scope |
|---|---|---|---|
| This Old House | $4,000 | $8,000 | Central AC installed, excluding ductwork. Page dated June 2026. |
| Today's Homeowner | $5,000 | $14,000 | Central AC installed. Page dated March 2025. |
| Bob Vila | $3,900 | $7,900 | Central AC installed. Page dated April 2024. |
Compared with neighboring states
| State | Median wage | Low | High |
|---|---|---|---|
| Idaho | $27.04 | $3,750 | $8,950 |
| North Dakota | $35.81 | $3,850 | $9,300 |
| South Dakota | $29.51 | $3,800 | $9,050 |
| Wyoming | $26.30 | $3,750 | $8,950 |
Other HVAC technician jobs in Montana
AC Replacement cost in every state · Montana home repair guide
General information, not professional advice. Conditions, codes and prices vary. Turn off power, gas or water before any work, and hire a licensed professional when in doubt. Cost figures are our estimates, not quotes.