Basic
$3,423 – $7,823 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 Chicago, Illinois typically costs $4,027 to $9,204 each as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Prices in Chicago are 19.0% higher than the national average for forced air gas furnace.
National average: $3,500 – $8,000 each
$3,423 – $7,823 each
80% AFUE single-stage gas furnace vented into the existing flue, new gas connector and shutoff, permit, old unit hauled
$4,027 – $9,204 each
92-95% AFUE condensing gas furnace with ECM blower, PVC venting, condensate drain, new gas shutoff and permit
$5,033 – $11,505 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 | $1,685 – $3,852 | each |
| Labor | labor | $1,593 – $3,640 | each |
| Supplies & Other | supplies | $449 – $1,027 | each |
| Equipment & Disposal | equipment | $300 – $685 | each |

Condensing gas furnace with white PVC vent pipes and ductwork in a utility closet
Photo: Wtshymanski · CC BY-SA 4.0 · Source
Labor costs in Chicago run proportionally higher than materials, which may favor material-heavy solutions.
Connect with local forced air gas furnace contractors in Chicago for personalized quotes based on your specific project.