Can I get same-day furnace repair in Detroit?

Often, yes. Many Metro Detroit HVAC companies advertise same-day or 24/7 emergency service. During a cold snap, though, call volume spikes, so call early in the day and expect after-hours calls to cost more.

Should I repair or replace a 15-year-old furnace?

Multiply the repair quote by the furnace's age. If the result is over $5,000, or the repair is more than half the cost of a new system, get a replacement quote as well. For any "you need a new furnace" verdict, a second opinion is cheap insurance.

How often should a furnace be serviced?

Once a year, ideally in the fall before heavy use. The CDC recommends having heating systems and other fuel-burning appliances checked by a qualified technician every year, partly to catch carbon monoxide problems early. Between visits, change the filter regularly.

Who do I call if I smell gas in Detroit?

Leave the house first, then call 911 from a safe spot. After that, call DTE's 24/7 Gas Leak Hotline at (800) 947-5000. Don't call an HVAC company first, and don't go back inside until you're told it's safe.

How much is a furnace diagnostic visit in Detroit?

Expect roughly $75 to $200 for the service call, with more for nights, weekends and holidays. Many companies credit that fee toward the repair if you go ahead, so ask before you book.

Does Michigan help pay for furnace repair?

Yes, for eligible low-income households. State Emergency Relief can cover repair or replacement of a furnace that isn't working, as long as a licensed technician states in writing that it's inoperable. Apply through MI Bridges before you pay for the work, or call 211 for help.

Furnace Repair In Detroit

The first real cold stretch of the season is when most Detroit furnaces show their problems. The house won’t warm up, the furnace clicks but never lights, or it runs and blows cool air.

Here’s the short answer on furnace repair in Detroit. If you smell gas or a carbon monoxide alarm goes off, leave the house and call 911. Otherwise, check the thermostat, breaker, and air filter first. Then call a licensed HVAC contractor that actually serves your ZIP code.

This guide covers what to check, what repairs typically cost in 2026, how to vet a technician, a few local companies to know, and where to get help if the bill is out of reach.

Is It an Emergency? Gas Smells and Carbon Monoxide Come First

A cold house is uncomfortable. A gas leak or carbon monoxide (CO) is dangerous. Rule those out before you touch the furnace.

If you smell rotten eggs or suspect a gas leak, DTE Energy says to:

Leave the house right away and go somewhere you can no longer smell gas.
Call 911 once you are safe.
Call DTE’s 24/7 Gas Leak Hotline at (800) 947-5000.
Stay out until first responders or DTE say it’s safe. Don’t try to find the leak.

Carbon monoxide has no smell, so a working CO alarm is your warning. According to the CDC, the most common symptoms are headache, dizziness, weakness, nausea, vomiting, chest pain, and confusion, and people who are asleep can be poisoned before they notice anything. If the alarm sounds or several people feel sick at home, get everyone outside and call 911. A lazy yellow burner flame instead of a crisp blue one is also worth a professional look soon.

Quick Checks Before You Call a Technician

A surprising number of no-heat calls end with a simple fix. Before you book a visit, spend five minutes on these:

Thermostat. Make sure it’s set to HEAT and a few degrees above room temperature. A blank screen usually means dead batteries.
Breaker and furnace switch. Check the panel for a tripped breaker. Then find the furnace’s own on/off switch, which is often near the furnace, by the basement stairs or on the ceiling, and make sure it hasn’t been flipped off.
Air filter. A clogged filter can make the furnace overheat and shut itself down. Swap it if you can’t see light through it.
Front panel. If you opened the furnace, push the door back on firmly. Most furnaces won’t run with the panel loose.
Outside vent pipes. High-efficiency furnaces vent through white plastic pipes on an outside wall. After a Detroit snowstorm or ice buildup, clear them gently, since a blocked pipe can shut the furnace down.

Stop there and call a pro if the breaker trips again, the furnace clicks but never lights, it shows a flashing error code, or anything smells like burning. One more thing worth asking your technician about: a very fine filter (one with a high MERV rating) can restrict airflow on some older furnaces.

How Much Does Furnace Repair Cost in Detroit?

Most furnace repairs land in the low hundreds of dollars. HomeAdvisor’s 2026 guide puts the national average around $318, with a typical range of $133 to $505. Estimates for Detroit specifically run about $150 to $600, depending on what failed.

Charge	Typical range	What drives it
Diagnostic or service-call fee	$75–$200 per visit	Often credited toward the repair; ask first
Common repairs (thermostat, igniter, flame sensor, airflow)	$150–$600	Part price plus labor
Major parts (blower motor, control board, heat exchanger)	Can top $1,000; This Old House lists $1,712–$2,996 for a cracked heat exchanger	Part cost and furnace age
Nights, weekends, holidays	Extra on top of the above	After-hours labor rates

The bigger question is often whether to fix it at all. A common rule of thumb from Filterbuy’s 2026 cost guide: repair a furnace under 15 years old when the fix costs less than half the price of a new system, and when the repair cost multiplied by the furnace’s age stays under $5,000. A $400 repair on an 8-year-old furnace ($3,200) passes. The same repair on an 18-year-old unit ($7,200) is a signal to get a replacement quote too.

Timing matters as well. If your furnace has been acting up, get it looked at before Thanksgiving (Thursday, Nov. 26) rather than during the holiday, when after-hours rates may apply, and schedules are tight.

How to Choose a Furnace Repair Company in Detroit

Start with the license. In Michigan, heating work is done under a mechanical contractor license issued by LARA’s Bureau of Construction Codes, and the state recommends checking it yourself rather than taking a company’s word for it. You can search by company name or license number at aca3.accela.com/lara.

Then ask a few questions before anyone comes out:

Do you serve my ZIP code? Many “Detroit” HVAC companies are based in the suburbs and cover only certain areas.
Is there someone available after hours, or only during business hours?
What is the diagnostic fee, and does it count toward the repair?
Will I get a written, itemized estimate before work starts?
Can I keep the old part? It’s a simple way to confirm what was replaced.

If a technician says the heat exchanger is cracked or the whole furnace needs replacing, get a second opinion before you sign. Several Metro Detroit Reddit threads describe homeowners who were told to replace a furnace and then had it repaired by another company for much less. Replacement is sometimes the right call, but it’s a big enough decision to confirm. A full replacement also needs a permit, which a licensed contractor should pull.

Furnace Repair Companies Serving Metro Detroit

The companies below are listed alphabetically for reference. They are not ranked or endorsed. Details come from company websites, the Carrier dealer directory and business listings as of November 2026, so confirm service area, hours and licensing before you book.

Company	Based in	Areas served	Hours and emergency service
AFM Heating & Cooling	Livonia (31037 Schoolcraft Rd.)	Western suburbs, including Livonia, Canton, Westland, and the Ann Arbor area	Says technicians are on call 24/7
Detroit Furnace	Fraser (31313 Kendall Rd.)	Tri-County area, including Detroit, Warren, Eastpointe, Grosse Pointe, Hamtramck and Royal Oak	Office Mon–Fri 8 a.m.–5 p.m., Sat 9 a.m.–2 p.m.; lists 24/7 emergency service
FLAME Heating, Cooling, Plumbing & Electrical	Warren (2200 E. 11 Mile Rd.)	Detroit and Metro Detroit across Wayne, Oakland, Macomb, St. Clair and Washtenaw counties	Mon–Fri 7 a.m.–6 p.m., Sat 7:30 a.m.–3 p.m.; emergency service available
National Heating & Cooling	Detroit (23660 Grand River Ave.)	Detroit and Metro Detroit, including Wayne, Oakland and Macomb counties	Weekday business hours; call about after-hours service
Supreme Heating and Cooling	Detroit (14641 E. Warren Ave.)	Metro Detroit and the Tri-County area	Mon–Thu 8 a.m.–4:30 p.m., Fri 8 a.m.–3 p.m.
Technical Hot & Cold	Westland (38568 Webb Dr.)	Western Wayne, Oakland and Washtenaw communities, including Canton, Livonia, Novi, Plymouth and Ann Arbor	24/7 phone line listed

AFM Heating & Cooling has been in business for more than 35 years and also offers carbon monoxide testing.

Detroit Furnace also handles boilers, heat pumps and plumbing.

FLAME says it has served the area for more than 75 years. Its website lists its state license numbers, which makes a LARA check simple.

National Heating & Cooling is a Carrier dealer on Grand River Avenue in northwest Detroit and says it was established in 1958.

Supreme Heating and Cooling is a family-owned company on Detroit’s east side, known for boiler work, with roots going back to 1949.

Technical Hot & Cold is family-owned, was founded in 1991, and runs an HVAC parts warehouse in Westland.

National and Supreme are the two based in the city of Detroit. If you live in the city and call one of the suburban companies, confirm first that they cover your address.

Help Paying for Repairs and Keeping the Heat On This Winter

If the repair bill is the problem, Michigan has programs worth knowing about.

State Emergency Relief (SER). Run by the Michigan Department of Health and Human Services, SER can help low-income households repair or replace a furnace that isn’t working. Under the program’s rules, a written statement from a licensed service provider saying the furnace is inoperable counts as a crisis, so ask your technician for one. Apply through MI Bridges, and apply before you pay for the repair.
Michigan Energy Assistance Program (MEAP). Helps pay heating and electric bills for income-eligible households, administered by THAW. Call 211 if you’re not sure where to start.
Winter Protection Plan. Seniors and low-income customers of regulated utilities such as DTE can avoid gas and electric shutoffs from Nov. 1 through March 31. Eligible low-income customers pay 7% of their estimated annual bill each month during that window. Enroll through your utility.

The Michigan Public Service Commission also marks November as Carbon Monoxide Awareness Month. If you’re scheduling a repair anyway, it’s a good time to test or replace your CO alarms.

Frequently Asked Questions

Can I get same-day furnace repair in Detroit?
Often, yes. Many Metro Detroit HVAC companies advertise same-day or 24/7 emergency service. During a cold snap, though, call volume spikes, so call early in the day and expect after-hours calls to cost more.
Should I repair or replace a 15-year-old furnace?
Multiply the repair quote by the furnace’s age. If the result is over $5,000, or the repair is more than half the cost of a new system, get a replacement quote as well. For any “you need a new furnace” verdict, a second opinion is cheap insurance.
How often should a furnace be serviced?
Once a year, ideally in the fall before heavy use. The CDC recommends having heating systems and other fuel-burning appliances checked by a qualified technician every year, partly to catch carbon monoxide problems early. Between visits, change the filter regularly.
Who do I call if I smell gas in Detroit?
Leave the house first, then call 911 from a safe spot. After that, call DTE’s 24/7 Gas Leak Hotline at (800) 947-5000. Don’t call an HVAC company first, and don’t go back inside until you’re told it’s safe.
How much is a furnace diagnostic visit in Detroit?
Expect roughly $75 to $200 for the service call, with more for nights, weekends and holidays. Many companies credit that fee toward the repair if you go ahead, so ask before you book.
Does Michigan help pay for furnace repair?
Yes, for eligible low-income households. State Emergency Relief can cover repair or replacement of a furnace that isn’t working, as long as a licensed technician states in writing that it’s inoperable. Apply through MI Bridges before you pay for the work, or call 211 for help.

The Bottom Line

When the heat goes out, work in order. Rule out gas and carbon monoxide first, then run the five-minute checks. If the furnace still won’t run, call a licensed contractor who confirms they serve your address. Get the estimate in writing, and get a second opinion before agreeing to a replacement. If cost is what’s stopping you, apply for SER or call 211 before you pay for anything.