HVAC Repair in Monroe, MI
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 Monroe County will get in touch.
Tell us about the job
It takes about a minute.
Eleven months of work a year, in a place where the power doesn't always stay on
Your furnace runs October through May here. The air conditioner takes over for June through August. That leaves the system idle only a few weeks a year. Winter lows averaging 21°F keep the burner working hard on the coldest nights, and each start puts a little more wear on the igniter and the flame sensor. Summer afternoons near 82°F push the compressor for the months it runs.
Monroe County has logged 8 winter storms and 95 damaging wind events over the past ten years, and more than a third of Michigan households lost power for at least a day in 2024. Most furnaces and air conditioners restart on their own once power returns, but a system that was already running on a weak igniter or a failing capacitor may not. If your heat or air stopped working after a storm, or it has been cycling more than it used to, that is worth having looked at before the next cold night or hot afternoon.
- 8 months
- October through May, your system heats
- 3 months
- June through August, it cools
- 21°F
- the average winter night it heats against
- 82°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
A new furnace and air conditioner would cut about $160 a year off heating and cooling for a typical Monroe County home.
Estimates for a typical Monroe County home, compared with an older unit built to the previous federal minimum, from EIA household energy data, Michigan 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.
Michigan requires HVAC contractors to hold a state license.
The license comes from the Board of Mechanical Rules, and it belongs to the contractor, not to the job itself. Michigan tested this contractor and keeps a record of them before they take on any heating or cooling work, but that testing happened once, at licensing, not for this specific repair.
Because the license covers the contractor rather than the job, this repair does not get a separate state check of its own. The license is what stands behind the work, before and after this particular job is done.
Sources: Michigan Legislature · Michigan Department of Licensing and Regulatory Affairs
- Why is my heat not working?
- Most often the thermostat is calling for heat but the furnace is not responding to it, or it is responding and failing partway through startup. If the blower runs but no warm air comes out, the igniter or flame sensor could be the problem. If nothing runs at all, check the breaker and the switch that looks like a light switch near the furnace, since either one being off will shut the whole system down. Gas furnaces heat most homes in Monroe, and one of these is where a contractor will start.
- Why is my system running but not cooling the house?
- The blower could be moving air that never got cold, which usually points to the outdoor unit. Go outside and check whether the condenser fan is spinning. If it is not, or if the coil around it is covered in ice, the system is running but not actually cooling. A dirty filter can also choke off airflow enough that the coil freezes, so that is worth checking before anything else.
- What can I check before calling for HVAC repair?
- Start with the filter. A filter clogged with dust cuts off airflow and can make a furnace or air conditioner shut down or run without doing its job. Check the thermostat batteries and the breaker for the system next. If the outdoor unit is not running at all, look for a tripped breaker or a disconnect switch that got bumped off. These take a few minutes and rule out the simplest causes before a contractor needs to look at anything more.