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Furnace Repair in St. Louis Park, MN
In St. Louis Park's postwar story-and-a-halfs, the furnace often shares a chimney with the water heater, so draft is an early check on every repair call. A visit costs a $79 trip charge, waived when you approve the work, with a written flat-rate price first. We're open 7 days, 7am–9pm.
Furnace repair calls in St. Louis Park homes
St. Louis Park's postwar houses put the furnace in a low basement, often beside a gas water heater that shares the same masonry chimney. That setup matters on a repair call. An 80% furnace venting into a chimney partly blocked by fallen mortar or a failed liner can keep its pressure switch from closing, or trip a rollout switch, and the burners shut down. We check draft and carbon monoxide around the flue on every visit. In the story-and-a-halfs, the finished upstairs usually has little or no ductwork, so owners turn the thermostat up and the furnace runs long, hard cycles that finish off inducer bearings and igniters.
Houses already converted to a 96% furnace have a different winter failure: PVC terminations in a narrow side yard, where snow sliding off two roofs drifts in and blocks the intake. The pressure switch opens and the furnace locks out.
Updated September 23, 2026
How much does furnace repair cost in St. Louis Park?
Every furnace repair call in St. Louis Park starts with a $79 trip charge, waived when you approve the repair, and a written price before any work. Same prices in St. Louis Park as in every town we serve. National averages (HomeGuide, 2026), not our prices: an igniter $100–$250, a flame sensor $80–$250, a pressure switch $150–$400. More in the furnace repair cost guide.
Signs your furnace needs a technician
- The inducer starts, the igniter glows, then the burners never light
- The burners light for a few seconds and shut off, over and over
- The furnace runs but the vents blow cool air
- A blinking code on the control board, or the furnace has locked out
- Your CO alarm went off or the burner flames look lazy and yellow
- New banging, squealing or grinding when the furnace starts
- Water pooling around a high-efficiency furnace
More detail on our furnace repair page.
Symptom guides: Blowing cold air · Won't ignite · Short cycling · Blinking light codes · Pressure switch trips · Strange noises · Leaking water · Burning smell · Red tag · Carbon monoxide
Furnace repair in St. Louis Park: questions
The upstairs of our St. Louis Park story-and-a-half stays cold even when the furnace runs nonstop. Is the furnace failing?
Probably not. Most of these houses have no real ductwork to the finished upper rooms, just a grille or one small run, so heat reaches them by drifting up the stairs. A furnace running nonstop to satisfy a main-floor thermostat wears out sooner. We check the furnace first, then talk through options for the upstairs, such as a ductless head, so the furnace stops chasing a load it can't reach.
Can a furnace and water heater sharing a chimney cause carbon monoxide problems in an older St. Louis Park house?
They can if the chimney doesn't draft well. A cracked or blocked flue, a missing liner, or a house depressurized by a strong kitchen or bath fan can push exhaust back into the basement. On repair calls we check draft and measure CO near both appliances. Minnesota law requires working CO alarms within 10 feet of every sleeping room, and in a story-and-a-half that includes the upstairs bedrooms.
More in St. Louis Park
- Furnace replacement in St. Louis Park
- AC repair in St. Louis Park
- AC replacement in St. Louis Park
- All HVAC service in St. Louis Park
Furnace repair near St. Louis Park
- Hopkins, MN 4 mi
- Golden Valley, MN 4 mi
- Edina, MN 4 mi
- Minneapolis, MN 5 mi
- Richfield, MN 6 mi
- Robbinsdale, MN 6 mi
Brands we repair
Guides on furnace repair
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Furnace repair in St. Louis Park? Call or send a request.