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Get matched with top air duct cleaners in O Fallon, MO

There are 14 highly-rated local air duct cleaners.

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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon95
    Verified air duct cleaning services reviews

Verified Reviews for Air Duct Cleaning pros in O Fallon, MO

*The Angi rating for Air Duct Cleaning companies in O Fallon, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Air Duct Cleaning needs.

*The HomeAdvisor rating for Air Duct Cleaning companies in O Fallon, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Air Duct Cleaning needs.

Last update on October 08, 2025

Find Air duct cleaners in O Fallon

Degenhardt Heating & Cooling

7624 S Broadway
4.85(
26
)

Degenhardt Heating & Cooling

7624 S Broadway
4.85(
26
)
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers

We are a family owned and operated company since 1984. Now on the second generation of family, we look to keep our high quality standards while keeping customers the number one priority. We specialize in residential service, installation of new equipment, as well as new ductless systems. We offer standard efficiency and high efficiency systems, and since we do not pay on commission, we find the best fit for your wants and needs. Financing is available at a great rate, so call today for a free quote.

"Everything went fine. The bid was competitive, I was able to pay a portion in cash and finance the remainder on favorable terms. The crew showed up on time and worked efficiently. They had a difficult task in removing the old air handler from a shelf in a small closet area. So far, everything seems to be working fine."

Paul S on January 2022

We are a family owned and operated company since 1984. Now on the second generation of family, we look to keep our high quality standards while keeping customers the number one priority. We specialize in residential service, installation of new equipment, as well as new ductless systems. We offer standard efficiency and high efficiency systems, and since we do not pay on commission, we find the best fit for your wants and needs. Financing is available at a great rate, so call today for a free quote.

"Everything went fine. The bid was competitive, I was able to pay a portion in cash and finance the remainder on favorable terms. The crew showed up on time and worked efficiently. They had a difficult task in removing the old air handler from a shelf in a small closet area. So far, everything seems to be working fine."

Paul S on January 2022

PALLARDY HEATING & A/C CO

3624 FAIRVIEW DR
4.60(
5
)

PALLARDY HEATING & A/C CO

3624 FAIRVIEW DR
4.60(
5
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

EMERGENCY SERVICE AVAILABLE!! Big Enough to Serve, Small Enough to Care! RESIDENTIAL SERVICE and INSTALLATIONS. LIGHT COMMERCIAL SERVICE and INSTALLATIONS. We charge Flat Rate. Small family run company servicing the St. Charles and St. Louis Counties for OVER 30 YEARS!! Richard Pallardy started the Company after graduating from Ranken Technical College. Richard worked for another Company for 11 years before starting Pallardy Heating & Air Conditioning Co. Richard retired from working full time in 2015. Richard's wife, Denise, has taken over the business after working there for 20 years. Our Employees are Bonded and Insured.

EMERGENCY SERVICE AVAILABLE!! Big Enough to Serve, Small Enough to Care! RESIDENTIAL SERVICE and INSTALLATIONS. LIGHT COMMERCIAL SERVICE and INSTALLATIONS. We charge Flat Rate. Small family run company servicing the St. Charles and St. Louis Counties for OVER 30 YEARS!! Richard Pallardy started the Company after graduating from Ranken Technical College. Richard worked for another Company for 11 years before starting Pallardy Heating & Air Conditioning Co. Richard retired from working full time in 2015. Richard's wife, Denise, has taken over the business after working there for 20 years. Our Employees are Bonded and Insured.

Peters Heating & Air Conditioning

377 Travis Blvd
4.90(
21
)

Peters Heating & Air Conditioning

377 Travis Blvd
4.90(
21
)
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers

If you’re looking for a professional, reliable Troy heating and cooling company, you’ve come to the right place. Our family-owned & operated business has been serving the heating and cooling needs of Troy and the greater St. Louis area for more than 30 years and is proud to treat our customers like family. That means if you’re without heat in the winter, we will take your call anytime day or night and can have a qualified, knowledgeable service technician to your home or office same-day when necessary. Give us a call and find out about our services and soon you’ll understand why our customers call us the best furnace repair company in Troy, MO!

"They have worked for me for a few years. I am extremely impressed with them, and especially Ronnie. I've had problems for years with our GEO system and several other companies worked on my old system and gave me a big bill and never fixed it. Ronnie with in about 1 hour fixed the problem. That sytem finally wore out and Peters put in a new system. It is now about 1 yr old and still running better than the other one ever did. We had a problem with the Church I attend for 30 years, several companies worked on it, and we only had a bill and the problem was'nt fixed. Ronnie new the problem within 15 minutes. These guys are really good! With wrokmanship and price."

Mel B on September 2025

If you’re looking for a professional, reliable Troy heating and cooling company, you’ve come to the right place. Our family-owned & operated business has been serving the heating and cooling needs of Troy and the greater St. Louis area for more than 30 years and is proud to treat our customers like family. That means if you’re without heat in the winter, we will take your call anytime day or night and can have a qualified, knowledgeable service technician to your home or office same-day when necessary. Give us a call and find out about our services and soon you’ll understand why our customers call us the best furnace repair company in Troy, MO!

"They have worked for me for a few years. I am extremely impressed with them, and especially Ronnie. I've had problems for years with our GEO system and several other companies worked on my old system and gave me a big bill and never fixed it. Ronnie with in about 1 hour fixed the problem. That sytem finally wore out and Peters put in a new system. It is now about 1 yr old and still running better than the other one ever did. We had a problem with the Church I attend for 30 years, several companies worked on it, and we only had a bill and the problem was'nt fixed. Ronnie new the problem within 15 minutes. These guys are really good! With wrokmanship and price."

Mel B on September 2025

Dryer Vent Solutions, LLC

3851 Autumn Set Dr
4.33(
6
)

Dryer Vent Solutions, LLC

3851 Autumn Set Dr
4.33(
6
)
Customers say: Quick response
24 years of experience

Dryer Vent Solutions, LLC

"Bad, they only went 1-2 foot into the vent hole in the wall when supposedly cleaning the duct work. They didn't clean anything but the vent hole nothing else. I had as much if not more dust coming out of the vents after they were done. Tried calling but no call back from the company so I just gave up"

Bill L on February 2022

Dryer Vent Solutions, LLC

"Bad, they only went 1-2 foot into the vent hole in the wall when supposedly cleaning the duct work. They didn't clean anything but the vent hole nothing else. I had as much if not more dust coming out of the vents after they were done. Tried calling but no call back from the company so I just gave up"

Bill L on February 2022

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Air Duct Cleaning questions, answered by experts

To unclog an air duct, you’ll need to hire an air duct specialist to clean the ductwork. Air ducts are too tricky for a homeowner to access without special equipment, so a pro must thoroughly clear out a clog caused by dust and dirt buildup. However, if furnishings block your air ducts, you can move the furniture away from the vents to get the system to work correctly again.

Ductwork should be thoroughly cleaned at least every three to five years. An air duct cleaning specialist will need to clean and inspect the ductwork for any leaks or other damage. You can also help keep the air ducts clean by changing out air filters every 30 to 90 days.

Your floor sees a lot of action: foot traffic bringing in dirt from outside, pets with muddy paws, kids dropping food crumbs, and more. All of this makes your floors dirty, and if you don’t keep up with cleaning them, staying on top of the dirt will become more challenging.

If one room is significantly colder than the others, closing the air vents in the warmer rooms may seem like a way to redirect airflow. However, closing air vents is usually not a good idea. When the vents are blocked, your HVAC system will have to work harder, leading to higher energy bills and potentially shortening the life of the system.

No, a vent is where an HVAC duct enters into a room to deliver conditioned air, and a damper is a valve that can open and close to restrict airflow to the vents throughout your home. Some HVAC vents have manual dampers on them that let you control the airflow to specific areas of your HVAC system, but dampers can also appear on the hidden ductwork or near your air handler for more precise temperature control and energy efficiency in your ductwork.

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The O Fallon, MO homeowners’ guide to air duct cleaning services

From average costs to expert advice, get all the answers you need to get your job done.

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