Air Duct Cleaning Questions and Answers

How often should I have my air ducts cleaned?

It is important to have your air ducts inspected regularly to ensure the best air quality. Depending on the number of allergen sources located inside your home, such as pets or smoke, or in the air outside your home, such as pollen from trees and plants, the specific number of years you should typically wait in between cleaning air ducts can vary. On average, St. Louis Air Duct Cleaning and HVAC Service Company recommends you have your air ducts in your home or business cleaned every 3 years. If any of the members in your family suffer from severe allergies, you may decide to have your air ducts cleaned more frequently for their comfort.

How can I tell if my air ducts need to be cleaned?

The best way to determine if your air ducts are dirty is to remove the vent covers and look inside you ducts. The inside of your ductwork should be free of visible dirt or debris. For example, think of what your counters or shelves look like. You know it is time to clean when you can see a layer of dust start to build up.

In addition, you can look at the blower and motor for your furnace or underneath your furnace at the return. This area should be clean and free of debris as well.

This visible dust and debris is only the beginning of the pollutants and allergens that can be building up in your air ducts. Mold spores and other invisible allergens can be hidden deep within your ductwork as well. St. Louis Air Duct Cleaning and HVAC Service Company can remove even these invisible dangerous microorganisms from your air ducts.

I heard that cleaning your air ducts releases dirt from your vents to the rest of your home. Can you actually remove the dust and other particles from my home?

Yes, we use a high-efficiency particle air (HEPA) filters, as recommended by the EPA, to trap 99% of the dust and pollutants that are removed from your air ducts with our rotating brush and high-powered vacuum system. Therefore, we keep this debris from being re-introduced into your home.

Will cleaning my air ducts make my house less dusty?

Yes! Your heating and cooling system carries and circulates dust, dirt, and other pollutants throughout your home. The removal of this dust will significantly reduce the typical amount of dust that builds up on your belongings. As a result, you entire house will be cleaner following a thorough ductwork cleaning.

Can air duct cleaning help lessen my allergy symptoms?

It is very likely that cleaning your air ducts will help alleviate your indoor and outdoor allergies. Much of the debris that builds up in your heating and cooling system over time comes from common allergens such as pollen, pet dander, and dust mites. St. Louis Air Duct Cleaning and HVAC Service Company will remove these allergens from your ductwork, therefore reducing the concentration of these allergens in the air inside your home. This should result in a reduction of allergy symptoms for you and your family.

Do you guarantee your work?

Yes, St. Louis Air Duct Cleaning and HVAC Service Company is dedicated to customer satisfaction and we guarantee that upon completion of you air duct cleaning there will be no remaining visible particles in your air duct system. In addition, you will see that when your heating or cooling system is turned on, no particles should be blown out into your clean home. In addition, we are fully insured and bonded for your protection.

Why should I clean the air conditioner and furnace as well as my air ducts?

Generally, your ductwork is a closed system. Therefore, most of the dust and allergens, which exist in your duct system, enter at either the air conditioner or the furnace. If you do not clean the entire system, mold and other dangerous contaminates can be distributed throughout your clean system when the HVAC system is turned on.

Will cleaning my air ducts damage my furnace or air conditioner?

No, St. Louis Air Duct Cleaning and HVAC Service Company uses specialized tools, such as our soft bristle rotating brush and high-powered vacuum, to remove the dirt and debris from your heating and cooling system. In fact, since air duct cleaning reduces friction and improves airflow in your ductwork, will work better and run more efficiently following air duct cleaning.

Can cleaning my air ducts actually make my HVAC system more energy efficient?

Research shows that yes, when air ducts are cleaned in combination with the other components of your HVAC system, this can improve the efficiency of your entire heating and cooling system. Therefore, cleaning your air ducts, dirty cooling coils, fans and heat exchangers can result in lower energy costs to operate your heating and cooling system.

What areas do you service?

St. Louis Air Duct Cleaning and HVAC Service Company is proud to serve the St. Louis metro area including the below Illinois and Missouri areas. If you are interested in services and do not see your city, please call us.


St. Louis City


Mid County:

  • Bel-Nor
  • Breckenridge Hills
  • Frontenac
  • Hanley Hills
  • Ladue
  • Norwood Court
  • Pagedale
  • Richmond Heights
  • Uplands Park
  • Vinita Terrace
  • Bel-Ridge
  • Brentwood
  • Glen Echo Park
  • Hillsdale
  • Maplewood
  • Oakland
  • Pasadena Hills
  • Rock Hill
  • Velda City
  • Warson Woods
  • Bellerive
  • Charlack
  • Glendale
  • Huntleigh
  • Normandy
  • Olivette
  • Pasadena Park
  • Sycamore Hills
  • Velda Village Hills
  • Wellston
  • Beverly Hills
  • Clayton
  • Greendale
  • Kirkwood
  • Northwoods
  • Overland
  • Pine Lawn
  • University City
  • Vinita Park


North County:

  • Bellefontaine Neighbors
  • Calverton Park
  • Dellwood
  • Florissant
  • Moline Acres
  • Woodson Terrace
  • Berkeley
  • Champ
  • Edmundson
  • Hazelwood
  • Riverview
  • Black Jack
  • Cool Valley
  • Ferguson
  • Jennings
  • Saint Ann
  • Bridgeton
  • Country Club Hills
  • Flordell Hills
  • Kinloch
  • Saint John


South County:

  • Bella Villa
  • Green Park
  • Saint George
  • Wilbur Park
  • Crestwood
  • Lakeshire
  • Shrewsbury
  • Arnold
  • Fenton
  • Mackenzie
  • Sunset Hills
  • Imperial
  • Grantwood Village
  • Marlborough
  • Webster Groves
  • Barnhart


West County:

  • Ballwin
  • Creve Coeur
  • Eureka
  • Town & Country
  • Wildwood
  • Chesterfield
  • Crystal Lake Park
  • Manchester
  • Twin Oaks
  • Winchester
  • Clarkson Valley
  • Des Peres
  • Maryland Heights
  • Valley Park
  • High Ridge
  • Country Life Acres
  • Ellisville
  • Pacific
  • Westwood


St Charles:

  • St Peters
  • Wentzville
  • Troy
  • O’Fallon


Metro East:

  • Alton
  • Collinsville
  • Fairview Heights
  • O'Fallon
  • Belleville
  • Columbia
  • Granite City
  • Shiloh
  • Cahokia
  • Dupo
  • Maryville
  • Wood River
  • Centreville
  • Edwardsville
  • Millstadt
  • Waterloo