Furnace Replacement Cost in Connecticut
$3,050 – $8,800We estimate furnace replacement in Connecticut at $3,050 to $8,800 for a gas furnace on existing ductwork and gas line. The national estimate is $2,950 to $8,350. Connecticut HVAC technician pay is 26% above the national median, ranking 5 of 51.
| Part of the job | Low | High |
|---|---|---|
| Parts and materials (our assumption) | $2,500 | $6,500 |
| Labor hours (our assumption) | 6 | 14 |
| Billed labor rate per hour | $92 | $166 |
| Estimated total | $3,050 | $8,800 |
Our estimate, not a quote. Billed rate is the Connecticut median wage from BLS (2025, $36.83 an hour) times 2.5 to 4.5 to cover payroll costs, overhead, travel and profit. How we estimate
What our assumptions are based on
| Item | Sourced figure | Basis | Source |
|---|---|---|---|
| Parts | $1,249 – $1,835 | Budget Heating listed prices for 20 gas furnaces, all 80% AFUE, 40,000 to 135,000 BTU. No 90%+ AFUE models were on this list. | Budget Heating |
What other publishers report
| Publisher | Low | High | Scope |
|---|---|---|---|
| This Old House | $3,800 | $10,000 | Gas furnace installed. Page dated June 2026. |
| Today's Homeowner | $3,300 | $7,800 | Gas furnace replacement installed. Page dated September 2025. |
| Bob Vila | $3,800 | $10,000 | Gas furnace installed. Page dated April 2024. |
Who can legally do this in Connecticut
People doing HVAC and heating work must have the appropriate Connecticut license, in addition to any home improvement registration.
Check a license with Connecticut eLicense License Lookup
Compared with neighboring states
| State | Median wage | Low | High |
|---|---|---|---|
| Massachusetts | $37.16 | $3,050 | $8,850 |
| New York | $35.78 | $3,050 | $8,750 |
| Rhode Island | $32.39 | $3,000 | $8,550 |
Other HVAC technician jobs in Connecticut
Furnace Replacement cost in every state · Connecticut home repair guide
Sources
General information, not professional advice. Conditions, codes and prices vary. Turn off power, gas or water before any work, and hire a licensed professional when in doubt. Cost figures are our estimates, not quotes.