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Air Duct Cleaning St. Louis

Professional negative pressure air duct cleaning that removes dust, allergens, and debris from your entire HVAC system. Breathe cleaner air with Mad Hatter.

Mad Hatter truck-mounted vacuum hose run from the truck into a home for air duct cleaning

Professional Air Duct Cleaning in St. Louis

Your home's air duct system circulates air throughout every room — and over time, it accumulates dust, pet dander, pollen, mold spores, and other contaminants. At The Mad Hatter Service Company, we use our truck-mounted vacuum system to put your ductwork under negative pressure and pull these pollutants out of your entire HVAC system and straight to the truck, so nothing is recirculated into your home. The result is cleaner indoor air and a more efficient system.

The National Air Duct Cleaners Association (NADCA) recommends cleaning when an inspection shows the system is contaminated, and the EPA suggests cleaning when there is visible mold growth, pests, or excessive dust and debris. Not sure? Read 5 signs your air ducts need cleaning.

Mad Hatter air duct cleaning truck with its truck-mounted vacuum parked beneath the Gateway Arch
Our truck-mounted air duct vac at the Gateway Arch

Signs Your Air Ducts Need Cleaning

  • Visible dust and debris around air vents and registers
  • Musty or stale odors when your HVAC system runs
  • Increased allergy symptoms or respiratory issues at home
  • Excessive dust on furniture shortly after cleaning
  • Uneven airflow or reduced HVAC efficiency
  • Recent home renovation or construction project
  • Pet hair and dander visible in ductwork

Our Air Duct Cleaning Process

Our NADCA-compliant cleaning process ensures every component of your HVAC system is thoroughly cleaned:

  • System inspection — We assess your ductwork layout and identify problem areas
  • Negative pressure setup — We create negative pressure throughout the system to pull contaminants out
  • Source removal — We use brushes and compressed air tools to dislodge debris from duct walls
  • Component cleaning — We clean the blower, coils, and other accessible HVAC components
  • Final inspection — We verify the system is clean and restore all vents and registers

Benefits of Professional Air Duct Cleaning

  • Improved indoor air quality — removes allergens, dust, and contaminants
  • Enhanced HVAC efficiency — clean ducts reduce system strain and energy costs
  • Extended equipment life — reduces wear and tear on your HVAC system
  • Reduced allergy symptoms — eliminates pollen, pet dander, and dust mites
  • Eliminates odors — removes mold, mildew, and bacteria from ductwork

Related Reading

Read why we use a truck-mounted vac and 5 signs your air ducts need cleaning.

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