Furnace Repair in Rosemount, MN
When your furnace quits in a Minnesota January, it isn't an inconvenience — it's a race against frozen pipes. Groff Heating & Cooling has been getting Rosemount-area furnaces running again since 1991, and our NATE-certified technicians repair every major brand, not just the ones we sell.
You'll get a straight diagnosis, a clear price before we start, and an honest answer about whether a repair actually makes sense for your furnace's age and condition.

Signs your furnace needs a repair visit
- Blowing cool or lukewarm air instead of heat
- Short cycling — turning on and off every few minutes
- Grinding, squealing, or banging from the blower or burners
- A burner flame that's yellow or flickering instead of steady blue
- Gas bills climbing while the house feels colder
- The thermostat calls for heat but nothing happens
What a repair visit looks like
A technician inspects the whole system — burners, ignition, blower, heat exchanger, venting, and controls — not just the part that's making noise. You get a plain-language explanation of what failed, what it costs to fix, and what to watch next. We fix it right there whenever parts allow.
Every heating visit includes a check of the heat exchanger and carbon monoxide readings. A cracked heat exchanger is the one furnace problem that's a safety issue, not just a comfort issue, and we treat it that way.
Repair or replace? We'll tell you straight.
If your furnace is past 15 years old and the repair costs more than about half the price of a new system, replacement is usually the smarter spend — and we'll say so with numbers, not pressure. If a $300 part buys your furnace five more winters, we'll tell you that instead.
Estimates on replacement systems are always free, so you can compare both paths before deciding.
Common Questions
- Do you offer same-day furnace repair?
- We prioritize no-heat calls during the heating season and offer 24-hour emergency service. Call 651-423-3802 — during cold snaps, no-heat homes go to the front of the line.
- Do you repair furnace brands you don't sell?
- Yes. We install Carrier, but our technicians repair all major furnace brands — Lennox, Trane, Goodman, Rheem, Bryant, and the rest.
- What should I check before calling?
- Three quick things: the thermostat is set to Heat and has fresh batteries, the furnace switch (it looks like a light switch near the unit) is on, and the filter isn't clogged solid. Those three fixes are free and solve a surprising number of no-heat calls.
Furnace Repair Across the South Metro
Based in Rosemount and serving the neighbors:
Related Services
Need furnace repair?
Call now or schedule online — straight answers and fair prices since 1991.
