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
Air Duct Cleaning O'Fallon
Maintaining clean ductwork is essential for the health and efficiency of any HVAC system. Accumulated dust, debris, and allergens within the ducts can compromise air quality and system performance. BEL-O Cooling & Heating provides professional duct cleaning services to address these issues, ensuring your central air system is clean, safe, and energy-efficient. Our thorough duct cleaning process removes contaminants from your ductwork, enhancing the comfort and air quality of your space.
Improve your indoor air quality with duct cleaning services by BEL-O Cooling & Heating. Call (618) 400-0905 today!
O'Fallon Duct Cleaning Call for More Information Today!618-400-0905
They were knowledgeable, polite, and efficient. They did excellent work for a reasonable price.
Chelsea Laux
J"Highly recommend"
On time, prompt, thorough, and careful. Well worth the price for a real truck and equipment. Highly recommend.
Jonathan Spangler
H"Extremely professional and respectful"
Techs were extremely professional and respectful.
Heather McDaniel
A"Very happy with Bel-O's service"
Alex and the other gentlemen were courteous, professional, neat, and respectful of my home.
Amia Bruce
M"Courteous, timely and fair cost!"
The Belo Team knew exactly what to do and how important it was to get it done quickly!
Martin Schelling
E"Flawless Duct System"
They had to reroute my entire duct system and it looks flawless.
Erin Richey
c"Satisfied with Duct Cleaning"
The price is extremely reasonable and the service was wonderful.
carole fredeking
R"Extremely Friendly and Knowledgeable"
Alex was great to work with. Extremely friendly and knowledgeable about process.
Rachel Cain
K"Going with the company for ductwork"
Caleb did a diagnosis for me and I am going to go with the company as far as ductwork.
Kristine Holden
K"Turned Out Awesome!"
Had the sheet metal shop fabricate some ductwork. Turned out awesome!
Ken Johnson
A"Ducts Look New Now!"
My ducts look new now! Thank you to my friend Tara at Belo for recommending Belo's services and getting me scheduled and done so QUICK!
Arlene Brannan
D"Took Great Care of Me"
I contacted Bel O and, without hassle, they responded within an hour and fixed my issue quickly and efficiently.
Derek Scott
P"Fixed Our Problem After Hours"
John was able to fix our problem after hours.
Peter Belmonte
G"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.
Gregg Haege
R"Would Definitely Recommend Them"
John came out a little earlier than the scheduled time (which is always awesome).
Ryan Taira
M"Timely and Awesome Service"
Timely. Sump pump not working, able to fix without replacing.
Michael Gilmore
C"Top-Notch Service and Reasonable Price"
Top-notch service and reasonable price - especially for same-day response.
Chad Gallant
J"Great service and very knowledgeable."
Special shout out to Caleb and Travis, top notch professionalism and a pleasure to work with.
Joe King
G"Jim was kind, professional and thorough."
They never try to oversell and are never pushy. Just honest maintenance.
Gatehouse
J"Extremely accommodating and kind assistance"
Sabrina, James, and Alex were extremely accommodating and kind when assisting me.
J'Nae
L"I highly recommend John and BEL-O"
He shows up on time, always does a great job, and is very personable.
Larry Brokering
L"Evan was very professional"
Evan was very professional and did a wonderful job of explaining things to me along with showing me pictures.
Lynn Schwoebel
W"He was very polite and knowledgeable."
He was very polite and knowledgeable.
William Stoll
R"I certainly recommend Bel-O to anyone."
Evan was polite, on time, and knowledgeable. He made repairs in a timely manner, double-checked his work, and cleaned the area.
Ray Feltmeyer
L"They are friendly, honest, helpful and do fantastic work."
They arrive on time (sometimes even early!), do the work to be done and clean up afterwards.
Leann Weaver
S"John Kessel was very professional"
John Kessel was very professional and did a great job clearing a clog in our sewer line.
Sarah Hil
K"Awesome job repairing my entire water system!"
He was very persistent, knowledgeable, and patient in finding the problem of no water pressure.
Kenneth P (USAF, CAPT. Ret.)
J"Evan did a professional job analyzing and fixing the plumbing problem"
Evan did a professional job analyzing and fixing the plumbing problem on an older home.
Jill Scribner
J"They did an incredible job"
They did an incredible job and were extremely friendly. Will continue to do business with these folks—they're amazing.
Jason Walton-Young
Evan and Shawna did an outstanding job
Evan and Shawna did an outstanding job. They were professional and friendly and kind. Answered all of our questions. Will definitely use Bel O for air duct cleaning next time.
Taryn Brenner
We are super happy with the work
We are super happy with the work that Kyle and Demetrius did to repair our HVAC system and install a new dryer vent in the crawl space. They were knowledgeable, polite, and efficient. They did excellent work for a reasonable price. We will definitely recommend Bel-O to anyone needing ductwork. Thanks again, guys!
Chelsea Laux
Highly recommend
Wonderful service. On time, prompt, thorough, and careful. We have a 1979 home with open cavity returns with insulation instead of return ducting, so they were careful not to disturb too much and explained their process. They also went into our crawl space to ensure they thoroughly cleaned all the ductwork. In and out within 2.5 hours for a 2,000 sq. foot house. Well worth the price for a real truck and equipment. Not loud at all inside the house. They use a trailer instead of the portable machines that don’t do as good of a job. Highly recommend.
Jonathan Spangler
Extremely professional and respectful
I couldn’t be more pleased with how our techs serviced our ductwork. We just bought the house and they had never been done. The techs worked great together and were extremely professional and respectful the entire time they were there.
Heather McDaniel
Very happy with Bel-O's service
Today was my first time using Bel-O’s duct cleaning services, and I was very happy! Alex and the other gentlemen that completed the service were courteous, professional, and despite the dirty nature of the job, were very neat and respectful of my home! Sabrina helped me through the entire process of setting up the service, too, and she was very kind and professional! I will absolutely be using Bel-O again in the future!
Amia Bruce
Courteous, timely and fair cost!
The Belo Team knew exactly what to do and how important it was to get it done quickly! Our house was flooded and the entire sub-floor area was filled with creek water and sewage. All the air ducts and vents were destroyed, so all the HVAC air distribution system had to be removed and replaced. The team promptly cleaned out water-damaged materials and returned the HVAC to full working order. Courteous, timely, and fair cost! I'd recommend BELO to family and friends.
Martin Schelling
Flawless Duct System
The whole company was great start to finish. We love our new Daikin system, and they had to reroute my entire duct system and it looks flawless. So happy with the result.
Erin Richey
Satisfied with Duct Cleaning
My husband and I were satisfied when they walked into our home. We have heard horror stories about other companies who do duct cleaning. Such as charging you for additional services that were not needed, overpriced, fake pictures, etc. The price is extremely reasonable and the service was wonderful. Feel free to reach out to my husband and myself with any questions! A Very Satisfied Customer, The Fredeking’s
carole fredeking
Extremely Friendly and Knowledgeable
Alex was great to work with. Extremely friendly and knowledgeable about process. So happy I got my ducts cleaned prior to putting in a new system; there was so much junk built up!
Rachel Cain
Going with the company for ductwork
Caleb did a diagnosis for me and I am going to go with the company as far as ductwork. 😁
Kristine Holden
Turned Out Awesome!
Had the sheet metal shop fabricate some ductwork. Turned out awesome!
Ken Johnson
Ducts Look New Now!
Belo did a great job cleaning my ducts! I bought a house that had been heavily smoked in for years, and the ducts were filthy and smelled of smoke. I've always been skeptical if duct cleaning really removed dirt and debris, but let me tell you, my ducts look new now! Thank you to my friend Tara at Belo for recommending Belo's services and getting me scheduled and done so QUICK!
Arlene Brannan
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
Would Definitely Recommend Them
Called the company yesterday and scheduled an appointment for today. John came out a little earlier than the scheduled time (which is always awesome). He came in, asked a few questions, and took a look at the issue. About 20 minutes or so, the sink was back up and running (literally 😂). Would definitely recommend them for services.
Ryan Taira
Timely and Awesome Service
Timely. Sump pump not working, able to fix without replacing, awesome!
Michael Gilmore
Top-Notch Service and Reasonable Price
Bel-O has been a trusted HVAC supplier for many years. Our water heater reached its end of life on a Saturday afternoon. I called Monday morning and got a same-day appointment. The technician showed up an hour early, and we had a new water heater before I finished work. Top-notch service and reasonable price - especially for same-day response.
Chad Gallant
Great service and very knowledgeable.
Great service and very knowledgeable. Special shout out to Caleb and Travis, top notch professionalism and a pleasure to work with. Did tedious work replacing log gas insert and fixing a gas leak (never a good thing to have). Took the time to make sure everything was done to the highest standards.
Joe King
Jim was kind, professional and thorough.
Jim was kind, professional, and thorough. We always have great experiences with Bel-O. They never try to oversell and are never pushy. Just honest maintenance. Thanks so much!
Gatehouse
Extremely accommodating and kind assistance
Sabrina, James, and Alex were extremely accommodating and kind when assisting me. Alex was so helpful and such a delight. I was very grateful for Bel-O and their emergency techs.
J'Nae
I highly recommend John and BEL-O
John has been at our house several times for various plumbing projects. He shows up on time, always does a great job, and is very personable. I highly recommend John and BEL-O for your plumbing needs.
Larry Brokering
Evan was very professional
Evan was very professional and did a wonderful job of explaining things to me along with showing me pictures. I really appreciated him being able to fix my problem the same day he came to do the inspection.
Lynn Schwoebel
He was very polite and knowledgeable.
Got estimates for new water heater installation. He was very polite and knowledgeable.
William Stoll
I certainly recommend Bel-O to anyone.
Good experience with Bel-O and technician Evan Gaynor for replacement of kitchen sink faucet to repair a consistent leak. Evan was polite, on time, and knowledgeable. He identified the problem and explained necessary repairs and cost. He made repairs in a timely manner, double-checked his work, and cleaned the area and took his trash with him. I was happy with Bel-O for prompt scheduling and satisfied with the pricing. I certainly recommend Bel-O to anyone for plumbing or heating and cooling needs.
Ray Feltmeyer
They are friendly, honest, helpful and do fantastic work.
John, James, and Evan are just the best. They are friendly, honest, helpful, and do fantastic work. They arrive on time (sometimes even early!), do the work to be done, and clean up afterwards. They replaced cast iron pipes in my 90-year-old home and replaced a bathroom vanity. Told me what brand faucet to get so I’d have it on hand when they came for the install. I have another bathroom toilet and sink I will be calling to schedule. Hands down, I will always recommend them and Bel-O!
Leann Weaver
John Kessel was very professional
John Kessel was very professional and did a great job clearing a clog in our sewer line. Thank you!
Sarah Hil
Awesome job repairing my entire water system!
Awesome job repairing my entire water system/lines in my home at a great price! He was very persistent, knowledgeable, and patient in finding the problem of no water pressure in all of my faucets/toilets after my water softener stopped functioning, my hero! Thanks James Dawley/Bel-O.
Kenneth P (USAF, CAPT. Ret.)
Evan did a professional job analyzing and fixing the plumbing problem
Evan did a professional job analyzing and fixing the plumbing problem on an older home. He was also able to give a quote for extra work that will be needed in the future.
Jill Scribner
They did an incredible job
Had a tankless water heater installed by Evan and John at a reasonable price, upgrading my gas lines in the utility room and making things less chaotic despite the state of the existing plumbing in there. They did an incredible job and were extremely friendly. Have previously had Bel-O assist with HVAC repair, whole home humidifier installation, and ductwork for my gas stove ventilation. Will continue to do business with these folks—they’re amazing.
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
24/7 Emergency Heating And Cooling
Day or night, we restore your comfort fast in Metro East Illinois.
NATE-Certified Techs, Never Oversold
Expert diagnostics, honest repairs, and no high-pressure sales.
65+ Years Of Trusted HVAC Expertise
Since 1959, Belleville’s family-owned choice for reliable comfort.
Carrier Factory Authorized Dealer
High-efficiency Carrier systems installed for maximum comfort.
Questions & Answers
Is professional duct cleaning necessary?
While regular maintenance like changing air filters is crucial, professional duct cleaning ensures a thorough and effective cleaning of the entire HVAC system, including hard-to-reach areas. Professionals have the right equipment and expertise to safely and efficiently clean the ductwork, which may be challenging to achieve with DIY methods.
How long does duct cleaning take?
The time required for duct cleaning depends on the size of the system, the level of contamination, and the configuration of the ductwork. On average, a professional duct cleaning service takes between 2 to 4 hours. However, larger homes or systems with more extensive build-up may take longer.
What are the benefits of duct cleaning?
Duct cleaning can improve indoor air quality by removing dust, allergens, and pollutants. It can also help your HVAC system run more efficiently, potentially lowering energy bills. Clean ducts can lead to fewer odors in the home and reduce the risk of mold growth in the ductwork. Overall, it contributes to a healthier and more comfortable living environment.
Does duct cleaning help eliminate odors?
Yes, duct cleaning can help remove odors trapped in dust and debris within your duct system. By clearing out these odor-causing particles, the air circulated in your home becomes fresher and cleaner, helping to eliminate musty or stale smells, especially from previous smoking, pets, or cooking.
