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Dependable Air Conditioning Repair

Renaud Brothers Heating & Cooling is a Coleman Certified Comfort Expert and proudly offers expert repair for all AC makes and models. When your residential AC unit is in need of repair, you can trust our expertise to get the job done right. Renaud Brothers Heating & Cooling is a locally owned and operated business dedicated to customer satisfaction. If you begin to notice issues with your air conditioner, or you suspect that it’s not running properly, reach out to us today so that we can get you taken care of!

We’re proud of the high-quality results we offer homeowners like you. Whether it’s a simple fix or a complex repair, we’d be happy to turn things around for you.

We provide our customers with:
  • 24/7 emergency repair services
  • Detailed, Thorough troubleshooting
  • Polite, friendly customer service

Professional Residential AC Repairs

Renaud Brothers Heating & Cooling has years of experience diagnosing and repairing air conditioning systems in O’Fallon. Our team has extensive knowledge and experience with replacing broken, failing, or malfunctioning parts on all systems. Through the entire process, we also check for damaged or frayed wires and ensure to replace them to increase the reliability and health of your system. If you begin to notice strange noises or behavior from your AC unit, call Renaud Brothers Heating & Cooling and we are happy to help. We will provide a detailed diagnosis of your system, and provide recommendations on how to best proceed.

AC equipment we repair:


  • All major AC units
  • Packaged cooling systems
  • Standalone cooling products
  • Faulty AC parts

Schedule Your Service Appointment

Trust our team of local experts when it comes to professionally repairing your ac unit. No matter what type of floor plan you have, our technicians will know how to solve your AC problems, including installation and maintenance services. We can also assist you with air quality testing and help you find an air filtration product that is perfect for your home. You can count on Renaud Brothers Heating & Cooling in O’Fallon for your next air conditioning repair job.

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Contact Us today to learn more!