HVAC Replacement Cost in Montana

Estimated $9,779 – $15,296

Itemized cost breakdown
Item	Estimate
Outdoor condenser unit	$3,946
Furnace / heating unit	$2,151
Evaporator coil / air handler	$1,460
Refrigerant lineset & connections	$669
Installation labor	$3,549
Permit, disposal & startup	$764
Subtotal	$12,538

What affects hvac replacement cost in Montana

HVAC Replacement costs in Montana differ from the national baseline mainly because of local labor rates. Local construction-trades wages in Montana run about 9% below the national average (BLS Carpenters series, used here as a disclosed proxy for HVAC mechanics), holding installation cost down. Montana's mountain-valley winters bring extreme cold and high-altitude capacity loss; a cold-climate heat pump or high-AFUE furnace sized to the local design temp and elevation derating carries the heating season. Most Montana jurisdictions require a permit for HVAC/mechanical replacement, with condensate, gas, and electrical inspection; typical residential fees run $100–$350, usually with a final inspection. Montana levies no sales tax, so HVAC equipment are not taxed at the point of sale.