Furnace Repair in Greenville, SC

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 answer emergency calls 24/7 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 emergency calls at 2 AM 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 response is available 24/7 with no additional charges.