HVAC Repair in Saginaw, 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 Saginaw County will get in touch.
Tell us about the job
It takes about a minute.
Eleven months of work, most of it in the cold
Your furnace is the one working almost all year here. Heat runs October through May, eight months, and on the coldest nights it's cycling on and off against a low near 19°F. That kind of cold means longer burner cycles and more of them, and the igniter and burner assembly take the wear. When one gives out, you'll notice it as short cycling or a house that won't hold its temperature overnight.
Summer is short and it still matters. Three months of cooling, afternoons near 81°F, is enough to run a weak capacitor or a low refrigerant charge into the ground. Most homes here heat with gas, so when that furnace stops, there's often no backup. Storms are part of living here too, and outages follow them. More than a third of Michigan households went at least a full day without power in 2024, and every time power drops and comes back, a furnace or AC has to restart clean on its own.
- 8 months
- October through May, your system heats
- 3 months
- June through August, it cools
- 19°F
- the average winter night it heats against
- 81°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 Saginaw County home.
Estimates for a typical Saginaw 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.
Michigan tests contractors before handing out this license, through the Board of Mechanical Rules, and keeps a record of who holds one. The license is tied to the contractor, not to any single job, so the same license that covers today's repair covered the last one and covers the next.
For a repair to a heating and cooling system, that license is what stands behind the work. It tells you Michigan has tested this contractor and has them on record, not just that a business is registered somewhere.
Sources: Michigan Legislature · Michigan Department of Licensing and Regulatory Affairs
- Why is my heat not working?
- Start with the thermostat. Make sure it is set to heat and set a few degrees above room temperature, and check that it has power if it runs on batteries. If the thermostat looks right, check your breaker panel for a tripped breaker, since a furnace that lost power will not ignite. Gas furnaces also need a lit pilot or a working igniter, so if you smell gas at any point, leave the house and call your gas utility before doing anything else. With winter nights here averaging 19°F, a furnace that will not start needs attention quickly, so if these checks do not bring the heat back, a licensed contractor should look at it.
- Why is my system running but not cooling the house?
- Check the air filter first. A filter clogged with dust blocks airflow across the coil, and the system can run for hours without lowering the temperature much. Next check the thermostat setting and make sure it is set to cool, not fan only. Outside, look at the condenser unit and clear away any grass clippings, leaves, or mulch stacked against it, since it needs open air around it to work. If the filter is clean and the outdoor unit has clearance but the house still is not cooling, the refrigerant charge or a part inside the system may be the problem, and that calls for a licensed contractor.
- What can I check before calling for HVAC repair?
- Check the thermostat batteries and settings, since a dead battery or the wrong mode causes a lot of no-heat and no-cool calls. Check your breaker panel for anything tripped, especially after a storm. Look at the air filter and replace it if it is gray or clogged, since restricted airflow affects both heating and cooling. If the system runs on gas, make sure the shutoff valve at the unit is open. Michigan requires HVAC contractors to be licensed through the Board of Mechanical Rules, so once you do call, ask for the license number if it is not already listed.


