What a Furnace Inspection Covers, and Why Each Check Matters
What a technician checks on a furnace inspection in Minnesota, from gas pressure to the heat exchanger. It is part of our $129 tune-up, or $219 with the AC.
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Furnace & AC Maintenance in Cottage Grove, MN
A Cottage Grove furnace or AC tune-up is $129 per system, or $219 when we service both together, with a combustion check on the furnace. The visit covers cleaning, a combustion and airflow check on the furnace, a coil and refrigerant check on the AC, and a short list of anything worn.
Tune-ups in Cottage Grove homes
Much of Cottage Grove was built in the 1960s and 1970s, and the tract ramblers and split-levels near Highway 61 often still have a basement furnace that was chimney-vented from day one. On those, the fall visit centers on the burners, the gas connection and the flame. Original ductwork with a single return is common, so we measure airflow too, because a furnace starved for air runs hot and wears out early.
The subdivisions built after 2000 are the other half of the job. Their builder-grade furnaces and condensers are finishing a first run, so we test the inducer, clean the condensate trap and check the PVC vent where winds off the fields drift snow against it. In spring, a 1960s house with central air added later gets its coil and blower speed checked, since a coil too large for the blower leaves rooms cool but clammy.
Updated November 10, 2026
What does a tune-up in Cottage Grove include?
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. Newer two-stories on the edges of Cottage Grove sit on open lots with young trees and little shade, so west-facing bedrooms heat up through the afternoon and the upstairs runs warm.
Tune-ups in Cottage Grove: questions
Does a Cottage Grove tune-up check the old chimney on our 1960s rambler?
Yes. On a chimney-vented furnace the tune-up looks at the flue connection and tests draft, because an old masonry chimney can lose its liner and let exhaust spill back. Fall is the time for it, and we will tell you plainly if the furnace is nearing the age where replacing it makes sense.
We are on propane at the edge of Cottage Grove. Does the tune-up change?
The check is the same in substance: burners, ignition, safeties, venting and airflow, with the gas connection tested for leaks. Propane homes add a practical step. Make sure the delivery truck can reach the tank after a storm and that someone reads the gauge before a cold snap, not during one.
More in Cottage Grove
Signs your system is overdue for a tune-up
- Furnace repair in Cottage Grove
- Furnace replacement in Cottage Grove
- AC repair in Cottage Grove
- AC replacement in Cottage Grove
- Heat pumps in Cottage Grove
- Mini-splits in Cottage Grove
- All HVAC service in Cottage Grove
Furnace & AC tune-ups near Cottage Grove
- St. Paul Park, MN tune-ups · 2 mi
- Newport, MN tune-ups · 4 mi
- Inver Grove Heights, MN tune-ups · 5 mi
- South St. Paul, MN tune-ups · 6 mi
- Woodbury, MN tune-ups · 7 mi
- Maplewood, MN tune-ups · 9 mi
Brands we tune up
Guides on tune-ups
Is Duct Cleaning Worth It in Minnesota Homes?
EPA says duct cleaning has never been shown to prevent health problems. Learn when it makes sense in a Minnesota house; HomeGuide puts it at $450–$1,000.
Read the guideHow to Clean a Furnace Flame Sensor Safely
Burners light, then shut off within seconds? Learn how to clean a furnace flame sensor safely, when to stop, and what our $129 tune-up or a repair covers.
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Heat out? AC quit? Call or send a request.