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Backflow Prevention

Belleville Backflow Prevention

Keeping Your Water Supply Protected

Backflow is a plumbing issue caused by wastewater entering your home through an incoming line. This happens for one of two reasons: back siphonage or back pressure that forces contaminated water back into the main water line. To protect against the risk of backflow, all businesses and homes that utilize automatic irrigation systems are required to have a backflow prevention system installed, and Bel-O Cooling & Heating offers superior solutions to ensure your water supply remains protected.

Here at Bel-O Cooling & Heating, our family-owned company has been in business since 1959. We have gained a reputation for being trustworthy, reliable, and dependable, and we strive to uphold that reputation with every service we provide. We understand the importance of security and protection when it comes to your water supply, and we make sure every backflow device we install is up to high standards and functioning exactly as it should be.

Call the Belleville backflow prevention pros at Bel-O Cooling & Heating today to schedule an appointment for all of your backflow service needs. Dial (618) 400-0905.

  • HomeAdvisor Screened & Approved
  • BBB A+ Accredited Business
  • Carrier Factory Authorized Dealer
  • Carrier President's Award
  • NATE
  • Sheet Metal Workers' International Association
  • Southern Illinois Builders Association
  • O'Fallon - Shiloh Chamber of Commerce Member
  • Plumbers & Pipefitters Local 101 - Belleville, Illinois
  • Daikin DCP Accredited
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What Is a Backflow Preventer?

A backflow preventer is a device that cuts off the flow of water to a particular branch of your plumbing system should the water ever start to flow backward in the direction it came from. Preserving this gap helps prevent the main water supply from being contaminated, and that makes them vital in a number of situations. Should your property need a new backflow preventer or your current preventer serviced, turn to Bel-O Cooling & Heating for a job done right.

We offer a full range of backflow services, including:

  • Backflow testing
  • Backflow inspection
  • Backflow repair
  • Backflow installation 



Because these devices are generally intricate and even small problems can lead to serious issues or even a total failure, a backflow prevention system is something that should only be installed by a plumber. Not only does your new systems need to be able to perform when called upon, but it needs to be able to do so with confidence and prevent leakage that could lead to potentially serious water contamination. This is particularly important for properties where reclaimed septic water could come in contact with a water line that carries fresh water, including homes that fall into this description.

Choose the team at Bel-O Cooling & Heating to handle your backflow problem! Contact us today.

  • “Couldn't wish for a better company and employee to service my home heating and cooling.”

    Karen H.
  • “Jason was professional and courteous.”

    Sue S
  • “They replaced my sump pump.”

    Rick H.
  • “Anthony thoroughly checked the gas water heater for proper operation”

    Becky G
  • “Jason was on time, polite, and professional.”

    Wayne S
  • “The experience was great as he took his time to clean and inspect the system and to go over any findings/recommendations he had for us.”

    Stephanie S.
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What Sets Us apart:
  • 1. Third Generation, Family-Owned Since 1959

    Our grandfather started this business to serve his community decades ago, and we take the same pride in that service. 

  • 2. Decades and Decades of Industry Experience

    Since we opened, we've prioritized expertise in both traditional and innovative industry practices to serve you better. 

  • 3. Honest & Transparent Technicians Who Never Oversell

    We want to provide you with a number of solutions and help you pick the right one for you, not the right one for us. 

  • 4. Full Capability One-Stop Shop for Heating & Cooling

    From keeping the air in your home safe and cool to manufacturing sheet metal, you are in capable hands. 

Learn More About Our History & Capabilities
About Us
Available 24/7 Contact Us Today Expert Technicians Providing HVAC & Plumbing Solutions for Residential and Commercial Properties
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