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 Stillwater, MN
Stillwater homeowners pay $129 to tune up one furnace or one AC, or $219 to do both in the same visit. Each visit includes cleaning, a full safety check and performance testing, with the results explained.
Tune-ups in Stillwater homes
Stillwater tune-ups split into two jobs. On the North and South Hills, an 1800s house usually has either a boiler feeding radiators or a forced-air furnace sitting beside a tall masonry chimney. We check the draft with the burner running, look at flue condition and combustion air, and note any mortar loss or missing liner. A furnace that cannot vent properly trips its pressure switch or spills exhaust, and that is easier to catch in the fall than in a cold snap.
In Croixwood and the west-side subdivisions, the equipment is builder-grade. A tune-up there means cleaning the condensate trap on 90% units, checking the PVC vent terminations, and testing igniters and inducers that are reaching the end of their life. In spring we clean condenser coils, measure refrigerant charge and look at the return sizing, which tends to run small in older ductwork.
Updated November 10, 2026
What does a tune-up in Stillwater 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.
Tune-ups in Stillwater: questions
Our North Hill house has a boiler with radiators. Do you tune those up?
Yes, boiler service is part of what we do in Stillwater's older homes. We check the burner, controls, pressure and venting, and look closely at the chimney, since flue gas condensing inside old masonry can wear it away from within. A liner inspection is worth doing at the same visit. Boiler maintenance runs within our $129–$349 range, with the price confirmed when you book.
Is a spring AC tune-up worth it on a Stillwater house with window units and ductless heads?
For a central system, yes. For ductless heads, we clean the filters and indoor coil and check the drain and charge. Hill houses are often cooled in pieces, so every outdoor unit adds a part to maintain.
More in Stillwater
Signs your system is overdue for a tune-up
- Furnace repair in Stillwater
- Furnace replacement in Stillwater
- AC repair in Stillwater
- AC replacement in Stillwater
- Heat pumps in Stillwater
- Mini-splits in Stillwater
- Boiler service in Stillwater
- All HVAC service in Stillwater
Furnace & AC tune-ups near Stillwater
- Oak Park Heights, MN tune-ups · 2 mi
- Bayport, MN tune-ups · 3 mi
- Grant, MN tune-ups · 5 mi
- Lake Elmo, MN tune-ups · 6 mi
- Mahtomedi, MN tune-ups · 7 mi
- White Bear Lake, MN tune-ups · 9 mi
Brands we tune up
Guides on tune-ups
Should You Cover Your AC Unit in a Minnesota Winter?
Why a plastic cover does more harm than good on a Minnesota AC, when a plywood top makes sense, fall prep steps, and why a heat pump should never be covered.
Read the guideSpring AC Tune-Up Checklist for Minnesota Homes
Your spring AC checklist for a Minnesota home, what our $129 tune-up covers and why, and how to time it around cottonwood season. Call 612-429-3465.
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Heat out? AC quit? Call or send a request.