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Belleville, IL Furnace & Air Conditioning Installation, Repair & Maintenance

Bel-O Cooling & Heating Inc is proud to serve the Belleville 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.

Our Work in Belleville -
6 Reviews


Laura Loehr
Located in Belleville
We could not be happier with our new furnace.
Service: New System Installation
Jay Erwin
Located in Belleville
Cody and Cale were very professional. They arrived on time and finished up like the true Pros they are. Great job guys.
Service: New System Installation
D Etherifge
Located in Belleville
excellent arrived in timely manner
Jean Thomas
Located in Belleville
absolutely the best serviceman knowledgeable and efficient he is an asset to your company
Jeremy Olson
Located in Belleville
Cody and his coworker were very professional and polite. They did a great job!
Service: Preventive Maintenance
Marc Joplin
Located in Belleville
John is great! I have always been comfortable with him coming into my home.
Service: Plumbing Service

About Belleville, IL - Happy to be your hometown Heating & Air Conditioning Contractor!

Belleville is located in in St. Clair County, IL, and as of 2010 its population was roughly 44,500. It is the Illinois city with the highest population south of Springfield, and it serves as the county seat. This community is a great place for families, and the presence of higher education institutions like Southwestern Illinois College, Saint Louis University, and Lindenwood University in this city make it a good option for lifelong residents. The climate of the Belleville region offers four distinct seasons with wet springs, hot and humid summers, and mild autumn months.

Belleville is home to a variety of attractions that might appeal to residents or visitors. Eckert’s Country Store and Farm is the largest pick-your-own and family-owned orchard in the country, and the Labor and Industry Museum is also located in this city. Belleville also holds a variety of annual events, including the St. Patrick’s Day Parade in March, Ale Fest in April, and Ainad Shriner’s Circus Parade in early June.