Fall Furnace Checklist: What to Do Before Winter
A fall furnace checklist for Minnesota homeowners: filter, vents, drain, CO alarms, humidifier, propane and a test run, plus what a $129 tune-up adds.
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Grant homeowners pay $129 for one furnace or one air conditioner tune-up, and $219 when both are done on the same visit. We clean, test and measure each system and report back on what is worn.
Grant is spread out. Farmhouses from before 1940, 1970s houses on lots under five acres and newer homes on five to ten acres all sit on different equipment, and many are on private wells and septic. Whether a gas line passes the property decides the fuel, so a tune-up here is a propane furnace as often as a natural gas one. For propane we check the regulator and gas connections, and for either fuel we clean burners, test the ignition and safeties and confirm the vent is clear.
Side-wall vent pipes and heat pump units sit where drifting snow reaches them, so we check clearances. Outbuildings get attention too: unit heaters in shops and barns should be looked at in October. In spring, condensers near pastures, gardens and tree lines pick up pollen, seed and dust faster than town units, so a coil rinse is the main job.
Updated November 10, 2026
Each $129 visit covers cleaning, a safety and carbon monoxide check and a written report. Boilers, heat pumps and mini-splits fall in our $129–$349 maintenance range, confirmed when you book. Grant's open, rolling land gives the wind room to drift snow across long driveways and against the side of the house where furnace pipes and heat pumps sit.
Yes. Unit heaters in barns and shops collect dust, cobwebs and straw, and they run hard once the cold arrives. We clean the burners, test the ignition and safeties, check the vent and the gas or propane connection, and confirm it starts reliably. October is the right time, before anyone needs the shop warm.
A condenser by pastures, gardens or tree lines clogs faster than one in a town yard, so plan on a rinse every spring at minimum. We clean the coil and fins at the tune-up and check the capacitor and refrigerant pressures. Between visits, keep tall grass and plants trimmed back about two feet from the unit.
Signs your system is overdue for a tune-up
A fall furnace checklist for Minnesota homeowners: filter, vents, drain, CO alarms, humidifier, propane and a test run, plus what a $129 tune-up adds.
Read the guideWater by the furnace in July usually means a clogged AC condensate drain. Learn how to clear it, whether the pump is to blame, and when to call 612-429-3465.
Read the guideTurning the furnace on this fall? What to do before the start-up, which smells and sounds are normal, and the filter, humidifier and CO alarm steps.
Read the guideHeat out? AC quit? Call or send a request.