HVAC Repair East Saint Louis IL | Call Cahokia Heating and Air Conditioning

3 Cahokia St, East Saint Louis, IL 62206

(618) 337-3889

Meet the Team

Cahokia Heating and Air Conditioning is a trusted HVAC provider serving East Saint Louis, IL, and the surrounding communities. We understand the unique challenges homeowners face in our area, including the risks of frozen HVAC components during unpredictable weather and the potential for dangerous carbon monoxide leaks from aging or improperly maintained furnaces. Our team of certified technicians specializes in preventative maintenance, emergency repairs, and comprehensive system checks to ensure your home stays safe and comfortable year-round. We prioritize clear communication, reliable service, and solutions specifically designed to protect your family and your investment from these common local HVAC hazards.

Service Capabilities

  • HVAC installation or replacement
  • HVAC system repair

Question Answers

Why does my air conditioner freeze up, and how can Cahokia Heating and Air help?

Frozen HVAC components are common here and are often caused by dirty air filters, low refrigerant, or airflow problems. Our technicians perform a thorough diagnostic to identify the root cause—whether it's a simple filter change or a more complex refrigerant leak repair. We fix the immediate issue and provide maintenance advice to prevent future freezes, protecting your system from costly damage.

What should I do if I suspect a carbon monoxide leak from my furnace?

Your safety is our priority. If you suspect a leak (e.g., smelling gas, seeing soot, or feeling flu-like symptoms), evacuate immediately and call 911. Then, contact us. Cahokia Heating and Air offers emergency furnace inspections and repairs in East Saint Louis. We check heat exchangers for cracks, test for CO, and ensure your venting is clear to eliminate this serious risk.

How often should my furnace be serviced to prevent problems in our climate?

Given our local temperature swings and the strain they put on systems, we recommend an annual furnace tune-up, ideally in the fall. Our preventative maintenance includes cleaning critical components, checking for wear, testing safety controls (including CO monitors), and ensuring efficient operation. This proactive service helps prevent unexpected breakdowns, improves safety, and can extend the life of your furnace.

Business Location & Hours



Mon:Open 24 hours
Tue:Open 24 hours
Wed:Open 24 hours
Thu:Open 24 hours
Fri:Open 24 hours
Sat:Open 24 hours
Sun:Open 24 hours


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