O’Fallon, MO Air Conditioner, Furnace, and Heat Pump Repairs and Installations

C & G Heating and Cooling has been serving the O’Fallon area for years. The owners, Doug and Carol Gotlieb started the business with the idea of always providing the best in quality craftsmanship and customer service. We have always believed in making sure our technicians are trained and certified to handle anything they come across, and to communicate with customers so they understand what is happening with their heating and cooling system. We offer the following services to the O’Fallon area:

• Air Conditioner Repairs • Air Conditioner Installations
• Furnace Repairs • Furnace Installations
• Heat Pump Repairs • Heat Pump Replacements
• Boiler Service • Boiler Installations
• Humidifier Repairs • Humidifier Replacements
• Thermostat Service • Programmable Thermostat Replacements
• Radiant Floor Heat Service • Radian Floor Heat Installations
• Geothermal Repairs • Geothermal Installations


C & G Heating and Cooling provides 24-hour service to your O’Fallon home. When you call us day or night, seven days a week, you will always get a live person ready to handle any emergency. And when the time comes to replace your heating and cooling system, one of our qualified Comfort Specialists will be there to provide a whole-house analysis on the best system for your home. They will do a load calculation to make sure your new furnace or air conditioner is properly sized for your home. They will talk to you about any allergies you may have so we install the correct air filtering systems. We will talk to you about humidity control and why it’s important to install a humidifier for our dry O’Fallon winters. We will also talk to you about programmable thermostats and how they can save you money on your utility bills.

We also offer financing when you replace your system, because we understand that heating and cooling equipment doesn’t always break at the most convenient times. We offer the exclusive No Credit Check Financing, so call us for details.