"Technicians Did an Outstanding Job"
Technicians were timely, knowledgeable, professional, and courteous. Exceptional job and would definitely recommend.
J
Julie Welton
"Great Customer Service"
Cody was very thorough and informative with details. It was extremely helpful and great customer service.
E
Eric Wolfe
"Highly recommend Bel-O Heating and Cooling"
They did an excellent job installing a mini-split in my tiny house, replacing my HVAC system and a new water softener.
D
Derek Scott
"Took Great Care of Me"
I contacted Bel O and, without hassle, they responded within an hour and fixed my issue quickly and efficiently.
P
Peter Belmonte
"Fixed Our Problem After Hours"
John was able to fix our problem after hours.
G
Gregg Haege
"Jim Knew How to Fix the Issue"
Jim, the plumber, took one look and knew how he could fix the issue and make it stronger.
Technicians Did an Outstanding Job
Bel-O installed a new mini split system at my house today, and the technicians did an outstanding job. They were timely, knowledgeable, professional, and courteous. Exceptional job and would definitely recommend them.
Shawn cunningham
Great Customer Service
The rep that came out to look at installing a mini-split in my garage was Cody. He was very thorough and looked at all the options for installing and was very informative with details. It was extremely helpful and great customer service.
Julie Welton
Highly recommend Bel-O Heating and Cooling
I highly recommend Bel-O Heating and Cooling. They did an excellent job installing a mini-split in my tiny house, replacing my HVAC system and a new water softener.
Eric Wolfe
Took Great Care of Me
Took great care of me. Evan was awesome. I had an issue with a whole-home water filter that was actively leaking. I originally had an appointment set up with a different company who came late and claimed it was going to cost me 1k to fix the issue. I called everywhere and got the runaround, but I contacted Bel O and, without hassle, they responded within an hour and fixed my issue quickly and efficiently. And it was a reasonable price and way below the price listed above the other place was trying to rip me off for.
Derek Scott
Fixed Our Problem After Hours
John was able to fix our problem after hours with no delays.
Peter Belmonte
Jim Knew How to Fix the Issue
Jim, the plumber, took one look and knew how he could fix the issue and make it stronger. That's what I look for when repairing something.
Gregg Haege
Serving Belleville, Granite City, Edwardsville, O'Fallon, Collinsville, East St. Louis, Fairview Heights, Highland, Troy, Glen Carbon, Madison County, Columbia, Cahokia, Wood River, Mascoutah, Maryville, Caseyville, Clinton County, Millstadt, Lebanon, Breese, Centreville, Freeburg, Scott AFB, Trenton, Smithton, New Baden, Dupo, St. Clair County and beyond
Mini Split Installation O'Fallon
At BEL-O Cooling & Heating, we specialize in hassle-free ductless mini-split installation, offering you a modern solution for your heating and cooling needs. Our skilled team ensures that each mini-split installation is performed with meticulous attention to detail, from selecting the ideal unit size to its strategic placement, maximizing both comfort and energy efficiency. Ductless mini-splits not only provide superior temperature control but also operate quietly and are aesthetically pleasing. Let BEL-O Cooling & Heating help you create a more comfortable, efficient, and tailored heating and cooling environment in your home.
Contact BEL-O Cooling & Heating at (618) 400-0905. Let our mini-split installation services elevate your home comfort to new heights.
Why Choose BEL-O Cooling & Heating
At BEL-O Cooling & Heating, we’ve spent over 65 years keeping Belleville and the Metro East comfortable. As a third-generation, family-owned company, we’re your trusted one-stop shop for HVAC, plumbing, indoor air quality, sheet metal fabrication, and even pest control. We treat every home and business like our own, delivering honest recommendations, quality workmanship, and responsive service—day or night.
Why Choose Us:
Family-owned and operated since 1959
A+ BBB rating and BBB Torch Award for Ethics
NATE-certified, non-commissioned technicians
True 24/7 emergency heating, cooling, and plumbing service
Comprehensive home services under one roof
Deeply involved in and committed to our local community
O'Fallon Ductless Mini-Split Installation Call for More Information Today!618-400-0905