Heating

    Furnace Repair in Greenville, SC

    Gas and electric furnace repair across the Upstate. A real diagnosis, a flat-rate price before any work starts, and no overtime charges.

    • Free second opinions at no cost
    • Fully licensed and insured, SC #117789
    • Financing available on qualifying systems, as low as 0%
    • Background-checked technicians

    Serving Greenville, Simpsonville, Mauldin, Greer, Taylors, Spartanburg, Duncan, Fountain Inn, Powdersville, Easley, Travelers Rest, Boiling Springs, Inman, Lyman, Moore, Piedmont, Reidville, Roebuck, Wellford and Woodruff. All service areas

    • Better Business BureauA Rating
    • Locally owned small businessGreenville, SC
    • HVAC Contractor of the YearBusinessRate 2025
    First Class Heating & Air technicians standing with the branded service van in a Greenville, SC neighborhood

    Schedule your service

    Repair, tune-up, or a free in-home estimate. Tell us what you need and we'll get right back to you.

    No obligationFree estimatesLicensed #117789

    Clear, Flat-Rate Pricing

    No surprises, no pressure. You know the price before we start any work.

    Free Second Opinions

    Not sure about a diagnosis from another company? We'll give you an honest second opinion at no charge.

    People First, Always

    We treat our customers like family, because that's how we'd want to be treated.

    Most furnace repairs we run in the Greenville area land between $200 and $1,100. The tech finds the cause first, and you get a flat-rate price before we touch anything. The expensive ones, a blower motor or a heat exchanger, are less common, and we explain below when they are worth fixing.

    About two out of three homes in the city of Greenville heat with electricity, not gas. In Greer it is closer to half and half (U.S. Census Bureau, American Community Survey 2018 to 2022). We repair both: gas furnaces, electric furnaces, and the electric heat strips inside air handlers. If you have a heat pump, see our heat pump page for that system.

    On every gas furnace call, the tech takes a carbon monoxide reading and looks at the heat exchanger, even when the call is for something else. A furnace that lights is not the same as a furnace that is safe to run.

    What furnace repair costs in Greenville

    These are our prices, from our own price book, not a national average.

    Igniter: $150 to $350

    The hot surface igniter glows to light the gas, and it cracks with age. It is a common reason a gas furnace runs its fan and never lights.

    Flame sensor: about $95 to clean, $200 to $400 to replace

    If your furnace lights, runs a few seconds, then shuts off and tries again, a dirty flame sensor is the usual cause. Cleaning fixes most of them.

    Pressure, limit and rollout switches: about $210 to $255

    These are safety switches. When one fails, the furnace locks itself out. When one trips, we find out why before replacing anything, because a tripped switch is usually a symptom of something else: a clogged filter, a blocked vent, or a plugged condensate drain on a high-efficiency furnace.

    Control board: $420 to $925

    The low end is a universal board that fits. The high end is a furnace that needs the factory part.

    Blower motor: $600 to $1,500

    A standard motor sits at the low end. A variable-speed (ECM) motor runs higher.

    Inducer motor: $890 to $1,080

    The small fan that clears exhaust out of the furnace before the burners light. A loud whine or rattle at startup is the warning sign.

    Gas valve: $400 to $800

    A safety part that controls the gas going to the burners.

    Heat exchanger: $2,000 to $4,000

    The part is often covered under the manufacturer warranty when the furnace was registered, which brings the cost down a lot. On an older furnace, this is usually the repair where replacement wins.

    Total Comfort Membership members ($197 a year) get 10% off repairs and 50% off the trip fee.

    The safety check on every gas furnace call

    Gas furnaces make carbon monoxide every time they run. The heat exchanger is the metal wall that keeps it in the flue and out of your air. When it cracks, that wall leaks.

    So on every gas furnace call, the tech takes a CO reading and inspects the heat exchanger, not just the part you called about. If we find a crack, we shut the gas off at the furnace, show you the photos, and give you the price to repair it and the price to replace the furnace. You decide with the evidence in front of you.

    If your carbon monoxide alarm goes off, get everyone out of the house and call 911 from outside. Then call us.

    Repair or replace?

    Multiply the furnace's age by the repair cost. If the answer is over $5,000, replacement usually makes more sense. A $300 igniter on a 15-year-old furnace comes to $4,500, so fix it. A $3,000 heat exchanger on an 18-year-old furnace comes to $54,000, so replace it.

    You get the numbers for both paths and you make the call. When the repair is the better deal, we will tell you, even though it costs us a sale. Replacement estimates are free, and our furnace replacement page lists what a new one costs.

    Flat-rate pricing, no overtime

    You approve the price before we start, and it is the price for the repair. It does not go up if the job takes longer than planned, and there are no overtime charges.

    Where we repair furnaces

    We run heating repair calls in Greenville, Simpsonville, Greer, Duncan, Inman, Spartanburg and Woodruff, and cover the rest of the Upstate from our shop at 33 Market Point Dr in Greenville: Mauldin, Taylors, Fountain Inn, Powdersville, Easley, Travelers Rest, Boiling Springs, Reidville, Roebuck and Wellford.

    First Class Heating & Air technician repairing a clogged condensate drain line at a furnace system in Greenville, SC

    What We Offer

    1Upfront Diagnosis
    2Flat-Rate Pricing
    3No Overtime Charges
    4Gas & Electric Furnaces
    5CO Test Every Gas Call
    6Igniters & Flame Sensors
    7Blower & Inducer Motors
    8Emergency Service

    What it costs

    $150–$4,000typical range

    Furnace and heat pump repairs run $150 to $4,000. An igniter is $150 to $350 and a flame sensor is $200 to $400. A blower motor is $600 to $1,500 and a heat pump reversing valve is $500 to $1,500. A cracked heat exchanger is $2,000 to $4,000, and on a furnace that old, replacement usually costs less than the repair.

    These are our own prices, not a national average. They are typical, not caps: size, efficiency tier, and access move the number. Your flat-rate quote comes before any work starts, and estimates on replacements are free.

    See the full pricing guide

    What Greenville homeowners say

    "I called First Class Heating & Air for a second opinion after another company could not find the part they said my unit needed. After finding that my system did Not need the part, First Class fixed the leak and replaced the refrigerant at less than half the cost of the other company's estimate. I appreciate companies being honest and upfront with customers."

    Jacki B. · Google review

    "Talk about honest because we know nothing when it comes to AC. The technician did not find any issues when he could’ve told us there were many and we would’ve never known. That goes to show this company’s technicians have integrity and knowledge. He even took pictures of everything to show us."

    KK C. · Google review

    Rated 5.0 on Google. Read more reviews →

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    Licensed #117789 · Free Estimates · No Overtime Charges

    Furnace Repair FAQ

    Common questions about our furnace repair services in Greenville, SC.

    How much does furnace repair cost in Greenville?

    We find the cause first and you get a flat-rate price before any work starts. Most repairs run $200 to $1,100. An igniter is $150 to $350, a flame sensor replacement $200 to $400, a blower motor $600 to $1,500. A heat exchanger is the outlier at $2,000 to $4,000.

    Why does my furnace light, then shut off after a few seconds?

    That's usually a dirty flame sensor. The furnace can't confirm the flame is lit, so it shuts the gas off for safety and tries again. Cleaning it runs about $95 and fixes most of them.

    Why is my furnace blowing cold air?

    On a gas furnace, the burners either aren't lighting (igniter, flame sensor, gas valve) or are locking out on a safety switch. Check that the filter isn't clogged and the thermostat is set to heat. If it still blows cold, shut it off and call us. On an electric furnace or air handler, it's usually a failed heat strip or the relay that turns it on.

    Is a cracked heat exchanger dangerous?

    Yes. It can leak carbon monoxide into the air your blower moves through the house. If we find one, we shut the gas off at the furnace, show you photos, and price both the repair and a replacement.

    Do you charge overtime?

    No. You approve a flat-rate price before we start, and it doesn't change if the job takes longer than planned.

    Should I repair or replace my furnace?

    Multiply its age by the repair cost. Over $5,000, replacement usually makes more sense. We give you both numbers and you decide.

    Do you repair electric furnaces?

    Yes. Most homes in the city of Greenville heat with electricity. We repair electric furnaces and the heat strips in air handlers as well as gas furnaces.

    How long do furnaces last in Greenville?

    Gas furnaces here typically last 15 to 20 years with annual maintenance. Our winters are mild, so furnaces run fewer hours a year than they would up north. Past 20 years, parts get harder to find and repairs add up faster.

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    Licensed #117789 · Free estimates · Financing available

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