HVAC Repair in Michigan City, IN
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 LaPorte County will get in touch.
Tell us about the job
It takes about a minute.
Eleven months of work a year, most of it on gas
Your furnace is the machine you depend on most here. Heat runs October through May, and on winter nights averaging 20°F it cycles on and off for hours at a stretch. Most homes in the area heat with gas, so the burner and igniter carry that load night after night. A worn igniter is a common reason a furnace won't light on the coldest nights, right when you need it most.
Summer asks less of the system, just June through August, but afternoons averaging 81°F still put hours on the compressor. LaPorte County has seen 4 winter storms and 60 damaging wind events over the past ten years, and in 2024, 17% of Indiana households lost power for 24 hours or more. Most furnaces and air conditioners start back up on their own once power returns. If yours doesn't, that's worth a call.
- 8 months
- October through May, your system heats
- 3 months
- June through August, it cools
- 20°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 $130 a year off heating and cooling for a typical LaPorte County home.
Estimates for a typical LaPorte County home, compared with an older unit built to the previous federal minimum, from EIA household energy data, Indiana 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.
In Indiana, HVAC licensing for homes is left to the counties and cities.
LaPorte County decides who can do this work, not the state. Indiana has no state HVAC license, so there is no state exam behind a contractor's name and no state record of who passed one. Whether a license is required for this repair comes down to LaPorte County's own ordinance, and any city inside it, rather than anything Indiana tracks.
For a repair like this, the connections matter most, since a bad one is what makes a heating and cooling system dangerous to run. Whether those connections get checked depends on the rules LaPorte County or its cities have set, the same local question the licensing itself comes down to.
Sources: Indiana Department of Workforce Development · State of Indiana
- Why is my heat not working?
- Start with the thermostat and the power to the furnace before you assume the worst. Check that the thermostat is set to heat and a few degrees above room temperature, and check the breaker. If the furnace runs on gas, look at the pilot light or igniter window if it has one. Winter nights here average 20°F, so a furnace that stops working can let a house get cold fast, and that is a reason not to wait it out before calling someone.
- Why is my system running but not cooling the house?
- If the blower is running but the air is not cold, the problem is usually with the outdoor unit, not the fan. Check that the outdoor unit has power and the fan on top is spinning. Check the filter too, since a clogged one chokes airflow across the coil and can stop it from cooling the air. If the outdoor unit is not running at all, or you see ice on the lines, that is worth a call rather than more troubleshooting.
- What can I check before calling for HVAC repair?
- Check the thermostat batteries and the setting first, since a dead thermostat looks exactly like a dead system. Check the breaker box for a tripped switch. Check the filter, since a filter clogged with dust can shut a furnace or air conditioner down on its own. If the outdoor unit or furnace still will not run after that, a contractor will need to look at it, and telling them what you already checked will save time.


