Every state / Montana
Montana HVAC Replacement Cost (2026)
Installed this quarter in every Montana city: a central AC $4,150 to $9,700, a gas furnace $3,750 to $4,800 and a heat pump $7,450 to $19,250. Equipment and labor, before rebates, from the public baseline.
All 7 systems, low to high
| System | Low | Typical | High | Range drawn |
|---|---|---|---|---|
| Central AC and gas furnace | ||||
| Central AC only, 3 ton 16 SEER | $4,150 | $6,900 | $9,700 | |
| Gas furnace only, 80,000 BTU 95% AFUE | $3,750 | $4,050 | $4,800 | |
| Heat pump, ducted | ||||
| 2-ton heat pump 15 SEER | $6,500 | $11,750 | $17,000 | |
| 3-ton heat pump 15 SEER | $7,450 | $13,350 | $19,250 | |
| 4-ton heat pump 15 SEER | $8,400 | $14,950 | $21,500 | |
| 5-ton heat pump 15 SEER | $9,400 | $16,550 | $23,700 | |
| Mini-split | ||||
| Mini-split, one zone, 12,000 BTU 20 SEER | $4,500 | $7,500 | $10,500 | |
Cities
3 cities, by population. The range above applies to all of them. Each line names what differs.
- Great Falls1 rebate program applies, none open now.
- Bozeman1 rebate program applies, none open now.
- Kalispell1 rebate program applies, none open now.
Rebate Programs in Montana
7 programs read from each provider, 7 open now. Each one is a page: who qualifies, how much comes off, who files it.
Flathead Electric Cooperative
Electric, cooperative. Serves The entire Flathead Valley and Libby, along with several hundred members along the Montana-Wyoming border.
- AC Smart Thermostat Program pays up to $50 per enrollment. Open now.
- Air Source Heat Pumps pays up to $1,560 per home. Open now.
- Ground Source Heat Pumps pays up to $3,000 per home. Open now.
- Smart Thermostat Rebate pays up to $140 per thermostat. Open now.
Montana-Dakota Utilities
Gas, investor-owned. Serves Parts of Montana; the residence must receive Montana-Dakota natural gas under Residential Gas Service Rate 60.
- Residential Natural Gas Heating Program pays up to $300 per furnace. Open now.
NorthWestern Energy
Both, investor-owned. Serves The western two-thirds of Montana.
- Residential Electric pays up to $450 per Unit. Open now.
- Residential Natural Gas pays up to $425 per Unit. Open now.
Contractor Licenses
No statewide HVAC contractor license. Contractors register with the Department of Labor and Industry; cities license mechanical work. The licensing page.