HVAC Repair in Green Bay, WI
Homes here need heat from September through May and cooling from July through August. If your system quits, tell us what it's doing and a licensed contractor who covers Brown County will get in touch.
Tell us about the job
It takes about a minute.
Nine months of heat, and nights near 14 degrees
Your furnace in Brown County runs from September through May. On winter nights that average 14°F, it cycles on and off for hours to hold the house at temperature. Each start puts a load on the igniter, and that part is usually the first to fail. When it does, the burner won't light and the house goes cold.
Summer asks less of the system, just July and August, with afternoons near 78°F. Storms are the bigger risk here. Brown County has seen 78 damaging wind events and 22 winter storms over the past ten years, and in 2024, 18% of Wisconsin households lost power for at least 24 hours. A furnace or air conditioner that shuts off hard in a power cut needs to be checked before it runs again.
- 9 months
- September through May, your system heats
- 2 months
- July through August, it cools
- 14°F
- the average winter night it heats against
- 78°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
A new furnace and air conditioner would cut about $120 a year off heating and cooling for a typical Brown County home.
Estimates for a typical Brown County home, compared with an older unit built to the previous federal minimum, from EIA household energy data, Wisconsin 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.
Wisconsin requires contractors to register with the state.
That registration puts the business on file with the Department of Safety and Professional Services, nothing more. There is no trade exam behind it and no state license, so the record shows who the business is, not that anyone checked its work. Counties and cities in Wisconsin cannot require their own HVAC license, so this registration is the only state record that exists anywhere, whether the job is in a city or out in the county.
On a repair to a system that burns gas, that record is not what stands behind the work. A gas connection is the dangerous part of a repair like this, and the registration says nothing about who is qualified to make one. Wisconsin's answer here is a business file, not a check on the work itself.
Sources: Wisconsin Legislative Reference Bureau · Wisconsin Department of Safety and Professional Services
- Why is my heat not working?
- Start with the thermostat and the power to the furnace. If the display is blank, check the breaker and the switch that looks like a light switch near the furnace. Sometimes it got bumped off. If those are fine, listen for what the furnace does when you turn the heat up. No sound at all points to power or the thermostat. A click followed by nothing points to the igniter. Short cycling on and off points to a safety switch shutting it down. At 14°F on a winter night here, this isn't something to sit on. A contractor can trace it from there.
- Why is my system running but not cooling the house?
- Check the filter first. A clogged filter starves the system of airflow, and the coil behind it can ice over, which makes the problem worse the longer it runs. Check the outdoor unit too. If the fan isn't spinning or it's caked in leaves and dirt, it can't move heat out of the house. If the filter's clean and the outdoor fan is running but the air still isn't cold, the system likely needs a contractor to look at the refrigerant charge.
- What can I check before calling for HVAC repair?
- Check the thermostat batteries and the setting first. It's the most common miss. Then check the breaker box and any switch near the indoor and outdoor units. A tripped breaker or a flipped switch will stop the whole system cold. Check the filter and swap it if it's dirty. If the outdoor unit has a shutoff switch, make sure it wasn't left off after the last service. Write down what the system does, or doesn't do, when you turn it on. Telling a contractor that gives them a head start on the diagnosis.