Furnace Replacement cost in Connecticut (2026)
Across Connecticut, furnace replacement varies by your city's labor rates, climate and permit fees. Select your city below for a localized estimate.
furnace replacement typically falls in this range across 15 Connecticut cities — your exact estimate depends on local rates.
| City | Typical 2026 range |
|---|---|
| Bridgeport, CT | $4,400 – $7,900 |
| New Haven, CT | $4,500 – $8,050 |
| Stamford, CT | $4,400 – $7,900 |
| Hartford, CT | $4,450 – $8,000 |
| Waterbury, CT | $4,400 – $7,900 |
| Norwalk, CT | $4,400 – $7,900 |
| Danbury, CT | $4,400 – $7,900 |
| New Britain, CT | $4,450 – $8,000 |
| Bristol, CT | $4,400 – $7,900 |
| Meriden, CT | $4,400 – $7,900 |
| West Haven, CT | $4,500 – $8,050 |
| Milford, CT | $4,400 – $7,900 |
| Middletown, CT | $4,450 – $8,000 |
| Shelton, CT | $4,400 – $7,900 |
| Norwich, CT | $4,450 – $7,950 |
Furnace Replacement cost by type in Connecticut
Typical 2026 ranges, localized to Connecticut labor, climate and permits.
| Type | Connecticut 2026 range |
|---|---|
| Gas furnace | $4,250 – $7,750 |
| High-efficiency gas furnace | $3,850 – $7,750 |
| Electric furnace | $2,400 – $5,150 |
Cheapest time for furnace replacement in Connecticut
HVAC demand collapses in the mild shoulder seasons, so installers discount to keep crews busy. The most expensive time to buy is during a heat wave or cold snap, when a dead system forces a full-price emergency replacement.
Rebates & incentives in Connecticut
Most 2026 rebates reward switching to a heat pump, not a like-for-like gas furnace. Replacing a gas furnace, your savings are mainly utility efficiency rebates (high-AFUE models) — but pricing out a heat pump often qualifies you for far larger rebates.
The federal 25C tax credit (up to $2,000 for heat pumps; $600 for high-efficiency AC or furnaces) and the 25D credit ended December 31, 2025 under the One Big Beautiful Bill Act — neither is available for 2026 installs. The remaining federal help is the IRA Home Electrification & Appliance Rebates (HEAR): up to $8,000 toward a heat pump for households under 150% of area median income, paid at point of sale where a state has launched its program.
Verified July 2026. Rebate budgets deplete and program windows change fast — confirm current amounts and eligibility with your utility and the DSIRE database before you budget. Costadia does not administer these programs.
Furnace Replacement in Connecticut
How much does furnace replacement cost in Connecticut?
Across Connecticut, furnace replacement typically runs $4,400–$8,050 in 2026, depending on your city's labor rates, climate and permit fees. Bridgeport is the most affordable (around $6,150) and West Haven the most expensive (around $6,300).
Which Connecticut city is cheapest for furnace replacement?
Bridgeport has the lowest typical furnace replacement cost in Connecticut at about $6,150, while West Haven is the highest at about $6,300 — a gap driven mostly by local labor rates.
How do other HVAC options compare in Connecticut?
In Bridgeport, Connecticut's largest market, furnace replacement typically runs $4,400–$7,900. For comparison, central AC installation runs $5,500–$11,750, heat pump installation runs $7,150–$13,000, full HVAC system replacement runs $8,750–$16,150. Each option has its own Connecticut cost guide with city-by-city pricing.
Why does furnace replacement cost vary across Connecticut?
The three levers are local labor rates, climate zone and permit fees. This is a cold-climate region, so heating performance is what matters most for furnace replacement. Prioritise a high-efficiency, properly-sized unit that can hold temperature through sustained sub-freezing spells, and confirm insulation and sealing first.
When is the cheapest time to replace in Connecticut?
The best window is spring and fall (mar–may, sep–oct), when demand drops and installers discount to keep crews busy — typically 5–15% off peak pricing. The priciest time is an emergency job during peak summer and mid-winter.
Does Connecticut require a permit for furnace replacement?
Most Connecticut cities require a permit for furnace replacement; it typically adds around $225 and is already included in the estimates above.
Other HVAC projects in Connecticut
Weighing your options? Typical 2026 ranges below are localized to Bridgeport, Connecticut's largest market — open any project for the full statewide breakdown.