Basic
$2,898 – $6,623 each
80% AFUE single-stage gas furnace vented into the existing flue, new gas connector and shutoff, permit, old unit hauled

Replace a natural-gas forced-air furnace (80-96% AFUE) on existing ductwork, including venting, gas connection, permit and haul-away.
Forced Air Gas Furnace in Billings, Montana typically costs $3,409 to $7,792 each as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Prices in Billings are 2.0% lower than the national average for forced air gas furnace.
National average: $3,500 – $8,000 each
$2,898 – $6,623 each
80% AFUE single-stage gas furnace vented into the existing flue, new gas connector and shutoff, permit, old unit hauled
$3,409 – $7,792 each
92-95% AFUE condensing gas furnace with ECM blower, PVC venting, condensate drain, new gas shutoff and permit
$4,261 – $9,740 each
96% AFUE two-stage condensing gas furnace with variable-speed blower, PVC venting, condensate neutralizer, programmable thermostat
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $1,512 – $3,456 | each |
| Labor | labor | $1,225 – $2,800 | each |
| Supplies & Other | supplies | $403 – $922 | each |
| Equipment & Disposal | equipment | $269 – $614 | each |

Condensing gas furnace with white PVC vent pipes and ductwork in a utility closet
Photo: Wtshymanski · CC BY-SA 4.0 · Source
Connect with local forced air gas furnace contractors in Billings for personalized quotes based on your specific project.