Furnace Replacement Cost in Montana
$2,950 – $8,350We estimate furnace replacement in Montana at $2,950 to $8,350 for a gas furnace on existing ductwork and gas line. The national estimate is $2,950 to $8,350. 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) | $2,500 | $6,500 |
| Labor hours (our assumption) | 6 | 14 |
| Billed labor rate per hour | $73 | $132 |
| Estimated total | $2,950 | $8,350 |
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 | $1,249 – $1,835 | Budget Heating listed prices for 20 gas furnaces, all 80% AFUE, 40,000 to 135,000 BTU. No 90%+ AFUE models were on this list. | Budget Heating |
What other publishers report
| Publisher | Low | High | Scope |
|---|---|---|---|
| This Old House | $3,800 | $10,000 | Gas furnace installed. Page dated June 2026. |
| Today's Homeowner | $3,300 | $7,800 | Gas furnace replacement installed. Page dated September 2025. |
| Bob Vila | $3,800 | $10,000 | Gas furnace installed. Page dated April 2024. |
Compared with neighboring states
| State | Median wage | Low | High |
|---|---|---|---|
| Idaho | $27.04 | $2,900 | $8,200 |
| North Dakota | $35.81 | $3,050 | $8,750 |
| South Dakota | $29.51 | $2,950 | $8,350 |
| Wyoming | $26.30 | $2,900 | $8,150 |
Other HVAC technician jobs in Montana
Furnace 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.