
O’Fallon Heating, Cooling & Plumbing
Serving All of Your Home’s Needs Since 1959
Homeowners can trust the local Belleville HVAC and plumbing professionals at BEL-O Cooling & Heating for all of their heating, cooling, indoor air quality, and plumbing needs. Whether you need repair or replacement services, we can help with it all.
Schedule an appointment by calling BEL-O Cooling & Heating at (618) 400-0905 today! We offer fast, effective, and friendly service backed by years of experience.
Comprehensive Heating Services in O’Fallon
Has your heater gone out on you? Does your furnace make strange noises or refuse to emit any hot air? BEL-O Cooling & Heating has the solution and can complete it quickly and effectively! We service all types of heating systems, including older technology and the latest and greatest models alike.
We offer services for all of the following:
- Boilers
- Gas & oil furnaces
- Ductless mini-splits
- Heat pumps
In addition to repairs, we provide thorough heating system maintenance to ensure your system operates efficiently all year round. Our team conducts detailed inspections, cleaning, and tune-ups, which not only prevent unexpected breakdowns but also extend the lifespan of your heating equipment. Whether it's boiler maintenance or furnace inspections, our goal is to ensure your home stays warm and comfortable throughout the cold months.
Reliable Air Conditioning Repairs in O’Fallon
BEL-O Cooling & Heating is the name to turn to for dependable air conditioning solutions all summer long. If your cooling system can’t keep you comfortable, we offer a full range of air conditioning repair, tune-ups, maintenance, and even full system replacements. As a Carrier Factory Authorized Dealer, we proudly offer premium products that are perfectly matched to your home for maximum efficiency and optimal performance.
Improving Indoor Air Quality in O’Fallon
Tired of poor-quality indoor air making it difficult to breathe, triggering asthma attacks, or causing respiratory problems? BEL-O Cooling & Heating is the name to call. Our products provide you with improved quality of life and unwavering peace of mind that comes from knowing that the air you’re breathing is really as clean as you think it is.
We offer an array of indoor air quality solutions designed to address specific issues such as allergens, humidity control, and ventilation. From advanced filtration systems to air purifiers, our team can tailor solutions to meet your home’s unique needs, creating a healthier and more comfortable living environment. By choosing us, you ensure a comprehensive approach to managing indoor air quality for your household.
Expert Plumbing Services in O’Fallon
From dripping faucets to leaking water heaters and faulty garbage disposals to damaged sewer lines, turn to the experts at BEL-O Cooling & Heating for local plumbing solutions. We’ll make sure your water supply is intact, leak-free, and flowing smoothly so you can use the fixtures you depend on every day without concern or frustration.
Our emergency plumbing services are available to address urgent issues quickly and effectively, ensuring minimal disruption to your daily life. We understand that plumbing issues can arise at any time, which is why our team is ready to respond promptly. Whether it's a burst pipe or a completely clogged drain, we bring the necessary tools and solutions to restore your plumbing system's functionality efficiently.
Energy Efficiency & Sustainable Solutions
At BEL-O Cooling & Heating, we understand the importance of energy efficiency and its impact on both your utility bills and the environment. That's why we provide energy-efficient heating and cooling systems designed to reduce your energy consumption and maximize savings. Our team can help you choose the right system for your home, ensuring optimal performance and minimal environmental impact. We also offer advice on simple home solutions, such as smart thermostats and regular maintenance checks, to further enhance energy efficiency.
In addition to HVAC solutions, our plumbing services incorporate water-saving measures and eco-friendly products. We strive to stay ahead with sustainable practices that benefit our clients and the planet, promoting responsible usage of resources and innovative solutions that align with modern ecological standards.
Comprehensive Water & Sewer Solutions
Our water and sewer services extend beyond simple repairs and installations. At BEL-O Cooling & Heating, we offer comprehensive assessments and solutions, ensuring that every system in your home functions optimally and meets local regulations. Whether it's water line installation O’Fallon, sewer cleanout, or slab leak detection, our team provides thorough services with a focus on quality and compliance.
Awareness of local infrastructure challenges and community-specific plumbing issues allows us to provide finely tuned solutions tailored to the O'Fallon area. From addressing common concerns like hard water to navigating complex municipal pipes, we offer guidance and services that keep your plumbing systems safe, efficient, and compliant with local standards.
Frequently Asked Questions
What Are the Signs of a Failing Furnace?
Uneven heating, strange noises like banging or rattling, and rising energy bills without increased usage are key signs of a failing furnace. Musty or burning smells when the furnace runs also indicate potential issues. Regular maintenance from BEL-O Cooling & Heating helps keep your system efficient and reliable throughout the winter.
Why Is Regular AC Maintenance Important?
Routine AC maintenance improves efficiency, reduces breakdowns, and extends your unit’s lifespan. Over time, dust buildup forces your system to work harder, increasing energy costs. BEL-O Cooling & Heating ensures your AC runs smoothly, keeping your home comfortable during O'Fallon’s hot summers while saving on energy bills.
How Can I Detect a Slab Leak?
Unexplained spikes in water bills, the sound of running water when fixtures are off, and damp or warm spots on your floor can all signal a slab leak. BEL-O Cooling & Heating uses advanced detection equipment to identify and fix leaks quickly, protecting your home from costly damage.
What Is Hydro Jetting and How Does It Work?
Hydro jetting is a powerful, eco-friendly method of clearing tough pipe blockages using highly pressurized water. It effectively removes grease, scale, and tree root buildup, restoring optimal water flow. BEL-O Cooling & Heating provides safe, professional hydro jetting services for both residential and commercial properties.
What Are the Benefits of Choosing a Carrier Factory Authorized Dealer?
As a Carrier Factory Authorized Dealer, BEL-O Cooling & Heating meets Carrier’s strict service and quality standards. This designation ensures expert installations, access to top-tier products, and industry-leading warranties. Our team receives ongoing training in the latest Carrier technologies, guaranteeing reliable, energy-efficient HVAC solutions for your home.
For a complete range of home services in O’Fallon, turn to BEL-O Cooling & Heating! Reach out to us and schedule your appointment now.


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"Loran Scharf came by to service our heating system for the winter and drain the hot water tank"
Loran Scharf came by to service our heating system for the winter and drain the hot water tank. Loran is very professional and does excellent work. He's been the person to do our service since we moved into our home in 2019 and we always ask for him. Hope Bel- O appreciates that they have a great representative of their company!
- Barbara & Jim Hicks -
"Couldn't wish for a better company and employee to service my home heating and cooling."
Couldn't wish for a better company and employee to service my home heating and cooling. Appointments are made with only a minimal wait, calls ahead of arrival and professional service by employees make me call this company each year. Loren Is the BEST.- Karen H. -
"Jason was professional and courteous."
Jason was professional and courteous. He listened to what the problem was and then explained what he needed to do to fix it. He answered all my questions and cleared the clogged basement drain. He also recommended what I could do to help keep the drain clear in the future. Thank you Jason!- Sue S -
"They replaced my sump pump."
They replaced my sump pump. They came in the day I called, did the work quickly and well, with a better product than I had before. Very friendly. Explained what they were doing.- Rick H. -
"Anthony thoroughly checked the gas water heater for proper operation"
Anthony thoroughly checked the gas water heater for proper operation and lit the pilot light. He took time to answer our questions and investigated what caused the issue. He was friendly and helpful. We appreciate the great service.- Becky G -
"Jason was on time, polite, and professional."
Jason was on time, polite, and professional. He had the old water heater out and the new one installed very quickly and efficiently. There was minimum disruption to our household, and we were back to functional in no time and no inconvenience.- Wayne S -
"What a great value for the peace of mind!"
We recently had a technician out to do a maintenance and cleaning of our furnace.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. We took advantage of the great maintenance plan they offer and look forward to having them back out in the spring to maintenance the AC. What a great value for the peace of mind!- Stephanie S. -
"Wonderful to work with. Fast and very professional."
Wonderful to work with. Fast and very professional. Mitch the tech was very nice and did a great job. Thank you so much!
- Karen B.
