HVAC Repair in Flemington, NJ
Homes here need heat from October through May and cooling from June through August. If your system quits, tell us what it's doing and a licensed contractor who covers Hunterdon County will get in touch.
Tell us about the job
It takes about a minute.
Eleven months of work, almost no rest
Flemington homes run the furnace from October through May, then switch straight to cooling for June through August. That leaves almost no month where the system just sits idle.
Winter nights here average 23°F, cold enough that the burner is cycling on and off for hours to hold the house steady, and each cycle depends on the igniter lighting cleanly. Summer afternoons average 83°F, which pushes the compressor hardest right when it has the least time to rest between cycles. Hunterdon County has seen 20 winter storms and 154 damaging wind events over the past ten years, and across New Jersey 11% of households lost power for at least 24 hours in 2024. Most furnaces come back on their own once power returns, but a system already running on a weak igniter or a worn capacitor may not recover cleanly. If your heat is short-cycling in the cold or your air conditioner is falling behind on the hot afternoons, that is the pattern showing up.
- 8 months
- October through May, your system heats
- 3 months
- June through August, it cools
- 23°F
- the average winter night it heats against
- 83°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
A new furnace and air conditioner would cut about $190 a year off heating and cooling for a typical Hunterdon County home.
Estimates for a typical Hunterdon County home, compared with an older unit built to the previous federal minimum, from EIA household energy data, New Jersey fuel prices and NOAA climate normals. Your home will differ.
Repair makes sense when one part has failed.
Replacement makes sense when the furnace's heat exchanger is cracked, the air conditioner's compressor has failed, or repairs keep coming.
New Jersey requires HVAC contractors to hold a state license.
The state's Board of Examiners of Heating, Ventilating, Air Conditioning and Refrigeration Contractors tests contractors before it licenses them, and the license stays with the contractor rather than being issued per job. Towns in Hunterdon County can't add their own license requirement on top of that, so the same state credential applies no matter which town the work is in.
For a repair on a heating and cooling system, that license is what stands behind the person doing the work, in Hunterdon County the same as anywhere else in New Jersey.
Sources: New Jersey Legislature · New Jersey Division of Consumer Affairs
- Why is my heat not working?
- Most often the igniter has failed or the flame sensor is too dirty to detect a flame, so the furnace shuts itself off as a safety measure. A dead thermostat battery or a tripped breaker can cause the same thing and are worth checking first. With winter nights here averaging 23°F, a furnace that won't stay lit needs a contractor out soon rather than waiting it out.
- Why is my system running but not cooling the house?
- The blower may be pushing air through the house while the part that actually cools it, the outdoor unit or the refrigerant in the coil, isn't doing its job. A dirty air filter can choke off airflow enough that the coil freezes over, which stops cooling even though the fan runs fine. Low refrigerant from a leak is another common cause, and that's not something to add on your own since it means there's a leak to find and seal first.
- What can I check before calling for HVAC repair?
- Check the thermostat batteries and the setting itself, then check the air filter and replace it if it's gray with dust. Go to your breaker panel and confirm nothing has tripped. If the outdoor unit isn't running, look for anything blocking it, like leaves or ice, and clear it away. If the system still isn't heating or cooling after that, a contractor will need to look at what's inside it.