Basic
$2,916 – $6,664 per project
80% AFUE single-stage gas furnace sized to the existing ducts, vented into the existing flue, new gas connection and shutoff, startup checked

Supply and install a natural-gas furnace (80-95% AFUE) replacing an existing unit on existing ducts, including venting and connection; duct or gas-line extensions extra.
Install Gas Furnace in Manchester, New Hampshire typically costs $3,430 to $7,840 per project as of 2026. Prices reflect local labor and material rates. Use our calculator below for a detailed, ZIP-code-adjusted estimate.
Prices in Manchester are 2.0% lower than the national average for install gas furnace.
National average: $3,500 – $8,000 per project
$2,916 – $6,664 per project
80% AFUE single-stage gas furnace sized to the existing ducts, vented into the existing flue, new gas connection and shutoff, startup checked
$3,430 – $7,840 per project
92% AFUE single-stage condensing gas furnace with PVC intake and exhaust venting, condensate drain, new gas connection, startup combustion check
$4,288 – $9,800 per project
95% AFUE two-stage condensing gas furnace with variable-speed blower, PVC venting, condensate drain, new thermostat wiring, full combustion test
| Component | Category | Price Range | Unit |
|---|---|---|---|
| Materials | material | $1,544 – $3,528 | job |
| Labor | labor | $1,200 – $2,744 | job |
| Supplies & Other | supplies | $412 – $941 | job |
| Equipment & Disposal | equipment | $274 – $627 | job |
Connect with local install gas furnace contractors in Manchester for personalized quotes based on your specific project.