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HVAC Contractor in O Fallon, IL

Proudly Serving All of St. Clair County & Surrounding Areas

If you need to enlist the help of an HVAC contractor who serves the O'Fallon area, BEL-O Cooling & Heating is ready to assist you. Our company is fully licensed and insured, and we're a Carrier Factory Authorized Dealer. Our professional staff members are highly experienced, and we can provide you with a wide range of services, including:

  • Air conditioning installation, repair, and replacement
  • Heating system installation, repair, and replacement
  • Tankless water heater installation
  • General plumbing and sewer cleaning

We're proud to have been providing high-quality work to local customers since 1959, and we've been a family-operated business for three generations. Our commitment to excellence shows in everything we do. When you need assistance, we'll arrive punctually, discuss your needs with you, and write out an estimate. As we work on a project, we pay attention to the small details and aim to finish on time.

The HVAC contractors at BEL-O Cooling & Heating in O'Fallon, IL, are ready to keep your heating and cooling equipment running smoothly. We have financing available as well as flexible appointment scheduling. Call today for more information.

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Setting Roof Top Units