Furnace Repair in Connecticut

Furnace repair in Connecticut costs $180 to $770 in 2026, though city-to-city prices vary quite a bit. Heating drives most HVAC spending in Connecticut: its larger communities average 5,653 heating and 799 cooling degree days a year.
Furnace Repair Prices in Connecticut Cities
| City | Estimate | Heating / cooling degree days |
|---|---|---|
| Bridgeport | $150 to $660 | 5,140 / 955 |
| Stamford | $210 to $920 | 5,357 / 857 |
| New Haven | $150 to $660 | 5,454 / 764 |
| Hartford | $150 to $630 | 5,619 / 914 |
| Waterbury | $150 to $640 | 5,892 / 718 |
From 2020 through 2025, NOAA recorded 101 winter storm and ice events, 54 heat events, 16 extreme cold events and 58 hail reports in Connecticut. Those are the days when emergency HVAC calls pile up.
Symptoms Worth a Service Call
- Cold air coming out of the vents
- The burners light, then shut off a few seconds later
- Banging, squealing or rattling from the furnace
- The blower won't stop running
- A yellow or flickering flame instead of a steady blue one
- The thermostat calls for heat and nothing happens
What Moves the Price
- The diagnostic or service call fee
- Which part failed: a flame sensor costs far less than a control board or blower motor
- Night, weekend or holiday rates
- Whether the part is still under the manufacturer warranty
- The furnace's age and brand, which affect parts availability
Common Questions
What is the most common furnace repair?
Cleaning a dirty flame sensor or replacing a cracked hot-surface ignitor. They're also two of the cheapest repairs.
Should I repair or replace my furnace?
Here's a rule many techs use: multiply the furnace's age by the repair quote. If the number is over $5,000, replacing it usually makes more sense.
Other HVAC Prices in Connecticut
- Furnace Replacement in Connecticut
- AC Installation in Connecticut
- AC Repair in Connecticut
- Heat Pump Installation in Connecticut
- Heat Pump Repair in Connecticut
- HVAC System Replacement in Connecticut
- Ductless Mini-Split Installation in Connecticut
- Emergency HVAC Repair in Connecticut
- HVAC Tune-Up & Maintenance in Connecticut
- Boiler Replacement in Connecticut
- Air Duct Cleaning in Connecticut
Get Free Furnace Repair Quotes
Tell us where you are and up to three licensed local pros will get in touch. You don't have to hire any of them.