Local HVAC Repair Service

When your heating or cooling system quits on you, you need help fast. In southern Illinois, a broken air conditioner in the middle of July or a furnace that stops on a freezing January night is more than an inconvenience, it can disrupt your whole household. At Overall Comfort, we provide prompt, reliable HVAC repair services for homes and light commercial spaces across Williamson, Franklin, and Jackson counties. Whether you are in Carterville, Herrin, Marion, or one of our many surrounding communities, we get your comfort restored quickly and correctly.

Our weather changes fast. One day you are running the air conditioner, the next you are kicking on the heat. That kind of back-and-forth puts strain on your HVAC system. Small issues can turn into big problems if they are ignored, especially during the extreme temperatures we see in places like Benton and Carbondale. Addressing problems right away saves you money and prevents further damage to your equipment.

• Lack of Heating or Cooling
  If your system is running but not delivering warm or cool air, it could be a refrigerant leak, a failing compressor, or a problem with your thermostat.
• Uneven Temperatures
  Hot and cold spots in your home might be due to ductwork issues, blocked vents, or a malfunctioning blower motor.

3. Strange Noises
     Banging, grinding, or squealing sounds often signal loose parts, worn belts, or motor problems that need immediate attention.

4. Frequent Cycling
     If your system keeps turning on and off, it could be a sign of electrical issues, a clogged filter, or incorrect system sizing.

5. Unusual Odors
     Burning smells, musty odors, or a hint of gas should never be ignored. They may indicate electrical issues, mold growth, or a dangerous leak.

• Thorough Diagnosis – We pinpoint the exact cause of the problem using advanced testing tools and years of hands-on experience.
• Clear Recommendations – We explain your options and the cost before any work begins.
• Expert Repair Work – Our trained technicians handle repairs efficiently so your comfort is restored quickly.
• Post-Repair Testing – We run the system through a full cycle to confirm everything is operating properly.

When extreme weather hits and your system stops working, waiting until the next business day is not an option. That is why we offer prompt emergency repair service to get your heating or cooling running again as quickly as possible.

The Local Experience Advantage

We know the homes, buildings, and HVAC systems in our region. From older farmhouses in Akin that still run on original ductwork, to newer construction in Pittsburg with high-efficiency systems, we understand the unique challenges that come with each. Our team’s local experience means faster troubleshooting and repairs you can trust.

• Your energy bills have spiked for no clear reason
• Your system runs longer than it used to without keeping you comfortable
• You hear new or unusual noises during operation
• Your thermostat does not seem to match the temperature in the home
• Airflow has weakened in certain rooms

Do not wait for a small issue to turn into a costly breakdown. Call Overall Comfort today to schedule your HVAC repair service and keep your home or business comfortable in every season.