O'Fallon, IL Furnace & Air Conditioning Installation, Repair & Maintenance

Bel-O Cooling & Heating Inc is proud to serve the O’Fallon community!

We are proud to be part of this community, serving your heating and air conditioning needs. Whether you need repair, replacement or a new installation of a furnace, air conditioner, heat pump or air filtration system, we get the job right the first time. Our certified technicians service all furnace and air conditioning make and models.

Please call us today at 618-632-5700 to consult with our home comfort specialist.

About O’Fallon, IL - Happy to be your hometown Heating & Air Conditioning Contractor!

The city of O’Fallon is located in St. Clair County, Illinois, approximately ninety miles south of the capital city of Springfield and fifteen miles east of St. Louis, Missouri.  Presently home to more than 29,000 residents and a large and diverse business community anchored in trade and industry, O’Fallon is one of the fastest growing communities in the greater St. Louis metropolitan area!

The city is home to a wealth of opportunities for outdoor sports and recreation, including a number of parks and recreational facilities maintained and operated by the O’Fallon Parks & Recreation Department.  Sites of note include O’Fallon Sports Park, a 200-acre world-class facility featuring tournament-level playing fields, hiking and biking paths, picnic facilities, and playgrounds, and the Katy Cavins Community Center, located in O’Fallon Community Park, with amenities that include an assembly hall, meeting rooms, and banquet facilities.

O’Fallon loves to celebrate, as evidenced by the numerous festivals and special events hosted by the city each year!  Popular events include the Homecoming and Heritage Festival, held each October with carnival rides, amusements, live music, and parade, and the O’Fallon Strange Folk Festival, an indoor arts and crafts extravaganza held each September that features live music, demonstrations and exhibits, a 5-K race, and arts and crafts from more than 150 vendors around the state.

Conveniently situated on I-64, O’Fallon’s family-friendly neighborhoods, safe streets, and fabulous community amenities make it a great place to live or visit in Southern Illinois!