Furnace Repair in Southeast Michigan and Northern Ohio
24/7 Emergency Furnace Repair
No-Heat Calls Get Priority
Gas Furnace Diagnostics & Repair
Residential & Commercial

Fast, Honest Furnace Repair for Homes and Businesses in Ann Arbor, Toledo, Ypsilanti, Saline, Monroe, Jackson and the Surrounding Communities

Furnace Repair You Can Count On
When your furnace stops working, you need someone who answers the phone and shows up. Tri-State Heating and Cooling is a family-owned HVAC contractor led by owner AJ, who brings more than 22 years of hands-on HVAC experience to every call. We repair gas furnaces of most makes and models across Southeast Michigan and Northern Ohio, day or night.
Every repair starts with a real diagnosis, not a guess. We find what failed, explain it in plain language, and give you your options before any work begins. If the fix is simple, we fix it. If your furnace is near the end of its life, we tell you that too.
Signs Your Furnace Needs Repair
Most furnaces give warning signs before they quit completely. Calling at the first sign of trouble usually means a smaller repair and less time without heat.
- Cold or lukewarm air from the vents
The blower runs, but the air never warms up. - The furnace won’t start or keeps shutting off
Ignition, flame sensor or safety switch problems often show up this way. - Short cycling
The system turns on and off every few minutes instead of running full cycles. - New noises
Banging, squealing, rattling or booming at startup point to parts that need attention. - Uneven heat or cold rooms
Some rooms stay cold while others overheat. - Rising gas bills
Higher bills with no change in use often mean the furnace is working harder than it should. - Yellow burner flame or a burning smell that won’t go away
Have it checked promptly. If you ever smell gas, leave the house and call your gas utility first.
Common Furnace Problems We Fix
Our technicians carry common parts and work through each system step by step, from the thermostat to the flue.
- Ignitor and flame sensor failures that stop the burners from lighting or staying lit
- Blower motor and capacitor problems that leave the furnace running with no airflow
- Inducer motor and pressure switch faults that trigger lockouts
- Control board and wiring issues, including error codes
- Gas valve and burner problems that cause weak or uneven heat
- Clogged filters, drains and condensate lines on high-efficiency furnaces
- Thermostat and control problems that make the furnace cycle wrong or not at all
- Heat exchanger inspection when cracks or corrosion are suspected
24/7 Emergency Furnace Repair
Furnaces don’t wait for business hours to break down, and neither do we. Tri-State Heating and Cooling answers no-heat calls 24 hours a day, 7 days a week, including nights, weekends and holidays.
A home without heat in a Michigan or Ohio winter is an emergency, especially with young children or older family members in the house. We treat it that way, get there as quickly as we can, and work to get your heat back on the same visit whenever the parts allow.
No heat right now? Call (517) 260-6334. Learn more about our emergency HVAC services.

What Affects the Cost of Furnace Repair
Every furnace is different, so we quote the repair after we’ve diagnosed the problem, and you approve it before we start. The main things that affect the cost of a furnace repair are:
- The part that failed: a flame sensor or ignitor is a much smaller repair than a blower motor or control board.
- Your furnace’s age and brand: parts for older or less common units can take longer to find.
- Furnace type: high-efficiency furnaces have more components, such as inducer motors and condensate systems.
- Timing: emergency calls at night or on weekends may differ from scheduled daytime visits.
- Underlying causes: a dirty filter, a blocked vent or a failing thermostat can cause repeat failures if they aren’t fixed too.
Repairs on larger jobs can be paired with flexible financing for qualified customers.

Repair or Replace? Straight Answers
Our goal is always to get your existing furnace running again. When a repair no longer makes sense, we’ll tell you why and show you the numbers so you can decide. Replacement is usually worth considering when:
- The furnace is 15 years old or older
- You’ve needed several repairs in the last two years
- The repair would cost a large share of a new system
- The heat exchanger is cracked or the system is no longer safe to run
- Your home has never been comfortable, even when the furnace works
If replacement is the better choice, we install high-efficiency American Standard furnaces sized to your home. See our heating services for furnace installation and replacement.
Our Furnace Repair Process
1. You call, we answer
Tell us what the furnace is doing. No-heat calls are scheduled first, 24/7.
2. Full diagnosis
We test ignition, airflow, controls, safety switches and venting to find the actual cause, not just the symptom.
3. Clear options before any work
We explain what failed and what it takes to fix it. You approve the repair before we start.
4. The repair, done right
We make the repair, clean up, and replace related parts only when they need it.
5. Test and walk-through
We run the furnace through full heating cycles, check safety controls, and show you what we did.

Prevent the Next Breakdown
Many emergency furnace calls start as small problems a tune-up would have caught: a dirty flame sensor, a worn ignitor, a clogged filter or drain. A yearly furnace tune-up before the heating season keeps your system efficient, safer and less likely to fail on the coldest night of the year.
Ask about our HVAC maintenance plans for scheduled furnace and AC tune-ups.
Flexible Financing Options
When a major repair or a furnace replacement isn’t in the budget, Tri-State Heating and Cooling offers financing for qualified customers, so you can restore heat now and pay over time.
Why Homeowners Choose Tri-State for Furnace Repair
- 22+ years of HVAC experience from owner AJ
- 24/7 emergency service, with no-heat calls handled first
- Family-owned and local: you talk to the people doing the work
- Honest recommendations: options explained before any work starts
- Residential and commercial furnace repair
- A 100% review response rate and customers who mention fast, same-day heat
Furnace Repair FAQs
Do you offer emergency furnace repair?
Yes. We answer no-heat calls 24/7, including nights, weekends and holidays.
Why is my furnace running but blowing cold air?
Common causes are a dirty flame sensor, a failed ignitor, a gas supply problem, a clogged filter or a thermostat set to “fan on.” If changing the filter and checking the thermostat doesn’t fix it, call for a diagnosis.
Is it worth repairing an old furnace?
Often, yes. If the furnace is under about 15 years old and the repair is modest, repairing usually makes sense. If it’s older, needs frequent repairs or has a cracked heat exchanger, replacement is usually the better value. We’ll explain both options.
How long does a furnace repair take?
Most common repairs are finished in one visit. Less common parts may need to be ordered.
Do you repair all furnace brands?
We repair most makes and models of gas furnaces and install American Standard systems.
What should I do if I smell gas?
Leave the house right away and call your gas utility or 911 from outside. Once it’s safe, call us to inspect and repair the furnace.
Furnace Repair Near You
Tri-State Heating and Cooling provides furnace repair in Ann Arbor, Ypsilanti, Saline, Tecumseh, Jackson and Monroe, Michigan, and in Toledo, Sylvania, Perrysburg and Oregon, Ohio, plus the communities in between. See our full service area.
Furnace acting up or not running at all? Call (517) 260-6334, day or night, or schedule service online.
