HVAC Repair in Vergennes, VT
Homes here need heat from September through May and cooling from July through July. If your system quits, tell us what it's doing and a licensed contractor who covers Addison County will get in touch.
Tell us about the job
It takes about a minute.
Nine months of heat, and nights that test every part of it
Your furnace in Addison County runs from September through May. On winter nights averaging 12°F, it cycles on and off for hours to hold the house steady, and every start puts load on the igniter and the ignition control board. Fuel oil heats 44.9% of homes here, and a furnace or boiler working that hard for that long is one that finds its weak part sooner rather than later.
Summer is short here, just July, but the system still has to switch over and cool the house through afternoons near 77°F. The county has seen 55 winter storms and 94 damaging wind events over the past ten years, and in 2024, 21% of Vermont households lost power for at least a day. When the power drops in the middle of a cold snap, the heat stops with it, and what comes back on afterward is worth a second look.
- 9 months
- September through May, your system heats
- 1 months
- July through July, it cools
- 12°F
- the average winter night it heats against
- 77°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
Vermont has no state license for HVAC contractors.
There is no state record to check. Vermont does not test HVAC contractors, and it does not keep a registry of who is doing this work either. Anyone can put a sign on a truck and call themselves a heating and cooling contractor.
That means nothing stands between you and the person doing the repair except their own reputation and whatever they show you about their training and insurance. Vermont has not set up a licensing board or a registration system to do that checking for you.
Source: Vermont Department of Public Safety, Division of Fire Safety
- Why is my heat not working?
- Most often it's the igniter, the thermostat, or a tripped switch. Furnaces have a flame sensor that shuts the burner down if it doesn't detect a flame, and a dirty or worn one is a common cause of no heat. Check that the thermostat is set to heat and the temperature is above room temperature, and check the breaker and any switch that looks like a light switch near the unit. With winter nights here averaging 12°F, a furnace that won't stay lit needs a contractor out quickly.
- Why is my system running but not cooling the house?
- If air is moving but it's not cold, check the air filter first. A clogged filter starves the coil of airflow, and the coil can ice over, which makes the problem worse the longer it runs. Turn the system off, let it sit for a few hours to thaw, and swap in a clean filter before running it again. If the air is still warm after that, the refrigerant charge or the compressor needs a contractor's attention.
- What can I check before calling for HVAC repair?
- Start with the thermostat. Make sure it's set to the right mode, the temperature calls for heat or cooling, and the batteries aren't dead if it has a screen that's gone dark. Next check the breaker and any furnace switch, since a tripped one will stop the system cold with no other sign of trouble. Look at the air filter too. A filter clogged with dust restricts airflow and can shut a system down or freeze a coil. If those check out and the system still isn't working, it's time for a contractor to look at it directly.