Average Furnace Installation Cost in Idaho
$3,941
Low End
$2,457
Average
$3,941
High End
$5,406
Want a more precise estimate?
Use our free HVAC calculatorHere's how furnace installation costs typically break down in Idaho:
Furnace Installation in Idaho is 11% below the national average of $4,434. This makes Idaho one of the more affordable states for furnace installation.
Idaho experiences a semi-arid to continental climate with cold, snowy winters in the northern panhandle and hot, dry summers in the Snake River Plain. Building in the higher elevations around McCall and Coeur d'Alene is largely limited to May through October, while the Boise and Treasure Valley corridor supports a longer shoulder season. For furnace installation projects specifically, this means timing and material selection are key factors in both cost and quality.
A larger pool of available contractors and moderate demand create competitive pricing in this market.
Idaho licenses contractors through the Idaho Contractors Board (registration required, no trade exam), so credential verification through references and insurers matters
Idaho Power and Avista offer active heat-pump and weatherization rebates for 2026, separate from the expired federal credits
Building in the Wood River, McCall, and Sun Valley areas is effectively a May-to-October season, book contractors nine to twelve months ahead for summer slots
Snow-load design values in the mountain counties are significantly higher than along the Snake River Plain, verify structural design matches the jurisdiction's ground snow load
Most furnace installation projects in Idaho require a building permit, especially if structural changes are involved. Estimated permit cost: $157.
View full permit guide for IdahoShare your project once and we'll send it to up to 3 verified furnace-installation pros in your area. Free for you, free for them. Never shared with more than 3, and never with anyone we have not verified.
Furnace Installation in Idaho typically costs between $2,457 and $5,406, with an average of $3,941 for a typical project in 2026.
No, furnace installation in Idaho is about 11% below the national average, making it more affordable than many other states.
Permit requirements vary by city and county in Idaho. Most furnace installation projects that involve structural changes require a building permit. Check our permit guide for Idaho for specific requirements.
A typical furnace installation project takes 2-7 days depending on the scope, weather conditions, and contractor availability in your area.
Get at least 3 quotes from licensed contractors, consider scheduling during off-peak seasons (fall/winter), ask about financing options, and make sure to compare material options as they significantly affect the total cost.
Cost estimates are based on publicly available data and industry averages for Idaho. Actual costs vary significantly based on project specifics, contractor pricing, material choices, and local market conditions. These estimates are for informational purposes only. Always get multiple quotes from licensed contractors.