When your furnace stops working on a cold South Carolina night, you need help fast. First Class Heating & Air provides reliable furnace repair in Greenville and surrounding areas with same-day service and transparent, flat-rate pricing. We offer emergency service because heating failures during freezing weather are genuine safety concerns.
Our technicians are experienced with all types of furnaces: natural gas, propane, and electric. Gas furnaces are the most common in Greenville homes with natural gas service, and they require specialized diagnostic skills to service safely. We test for carbon monoxide, verify heat exchanger integrity, check gas pressure, and ensure all safety controls are functioning properly on every repair visit.
Common furnace issues we repair daily include failed ignitors and flame sensors (the number one cause of 'no heat' calls), blower motor failures, thermostat malfunctions, cracked heat exchangers (a serious safety issue), dirty or clogged burners, limit switch trips, and inducer motor problems. We carry the most common replacement parts on our trucks for faster repairs.
Furnace safety is always our top priority. Gas furnaces produce combustion byproducts including carbon monoxide, a colorless, odorless gas that can be lethal in high concentrations. Cracked heat exchangers, blocked flue pipes, and backdrafting conditions can introduce carbon monoxide into your home. We perform thorough safety checks on every furnace repair, not just the component that triggered the service call.
We charge flat-rate pricing with no overtime or surprise fees, even for after-hours emergency calls on a holiday. You will know the exact cost before we start any work. If the repair cost approaches half the price of a new furnace and your unit is over 15 years old, we will tell you honestly that replacement may be the better financial decision.
Our furnace repair service covers the entire Greenville metro area including Simpsonville, Mauldin, Greer, Taylors, Spartanburg, Duncan, Fountain Inn, Easley, Powdersville, Boiling Springs, and surrounding communities. Emergency service is available with no additional charges.
Signs You Need Heating Repair
No Heat or Insufficient Heat
If your furnace is running but your home isn't getting warm, you could have a failing blower motor, a clogged filter, or a heat exchanger problem.
Strange Noises from Furnace
Banging, popping, squealing, or rumbling noises indicate mechanical problems that will worsen if not addressed promptly.
Yellow or Flickering Pilot Light
A healthy pilot light is blue. If it's yellow or flickering, it may indicate a ventilation problem or carbon monoxide risk, call immediately.
Frequent Cycling On and Off
Short cycling wastes energy and puts excessive wear on your furnace. It's usually caused by a dirty filter, thermostat issue, or oversized system.
Carbon Monoxide Detector Alert
If your CO detector goes off, evacuate your home immediately and call 911 first, then call us. A cracked heat exchanger is a common cause.
What to Expect
Call for Service
Call (864) 362-6255 for immediate assistance. We offer same-day and Emergency heating repair across the Greenville area.
Expert Diagnosis
Our technician performs a thorough inspection of your heating system to identify the exact cause of the problem.
Clear Options & Pricing
We explain what's wrong, present your options, and give you the flat-rate price before starting any work.
Professional Repair
We complete the repair using quality parts and proven techniques. Most heating repairs are finished the same day.
Safety Verification
We test the entire system including a safety check for gas leaks and carbon monoxide before we leave your home.
What We Offer
What it costs
Our diagnostic visit costs the same on nights and weekends as it does on a Tuesday. 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 guideNeed Furnace Repair Service?
Free estimates · No pressure · Flat-rate pricing