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Everything You Need to Know About Duct Cleaning


The average homeowner wipes down furniture and vacuums regularly to banish unsightly dust while giving zero thought to all the contaminants building up inside their ducts. Over time, this accumulation compromises your indoor air quality and HVAC’s efficiency.

Duct cleaning can be the right solution. When conducted by a trained professional, duct cleaning removes pollutants and seals leaks, ensuring a cleaner, healthier home.

Your Duct-Cleaning Questions Answered

How Do Ducts Become Dirty?

According to the National Duct Cleaners Association, the average household generates 40 pounds of dust annually. Think about it: That’s the size of a large bag of dog food! All those tiny particles float through the air until they settle on surfaces or circulate through your HVAC system. While the filter in your central air system will trap most dust, some of it will slip past and enter your ducts. Particulates cling to the interior of the ducts, gradually building up. Leaks in ducts exasperate the problem by drawing in dirty air from the attic or crawlspace. Dirt, mold, and even rodent droppings could be present in the ductwork, which means each time your AC kicks on, it’s circulating dirty air. This is especially a problem if you or a family member has respiratory issues.

How Do I Know if My Ducts Are Dirty?

There are several indicators that your ducts are due for deep cleaning. Keep your eye out for the following red flags:

  • Your house is constantly dusty: If dusting has become an almost daily chore, your ducts are likely contributing to low air quality.
  • You frequently have to replace the filter: We recommend replacing your air filter every 30 to 90 days, but if you find that you have to change them out with more frequency, you may have a ductwork issue.
  • You recently remodeled your home: Much of that dust kicked up during a renovation can end up in the ducts.
  • Your heating and cool costs are rising: In extreme cases, there can be enough dirt to impede airflow, forcing your HVAC to work harder. But it’s more likely that your ducts leak. According to EnergyStar, some 20% to 30% of conditioned air is lost through gaps in your ductwork. That means you’re paying to heat or cool your attic. That’s why, in addition to cleaning, an HVAC technician will also seal your ducts to reduce dust, eliminate hot and cold spots, and improve your central air system’s efficiency.

Is Duct Cleaning a DIY Job?

Your ducts are fragile, especially flexible duct, which is commonly made of thin neoprene material. Professional duct cleaning involves using specialized tools that reach deep inside your ducts to remove interior build-up without causing any damage. That said, there are several things the homeowner can do in between professional duct cleaning services.

  • Consider removing the registers and carefully vacuuming any dust or debris visible within the first 10 inches of the duct channel annually. But do not push the vacuum hose any deep, or you’ll risk puncturing the duct.
  • Replace your air filters regularly, at least every 30 to 90 days.
  • Schedule an annual HVAC tune-up. In addition to conducting preventive maintenance, the technician will also clean your system’s components to keep dust, dirt, and mold out of your ducts.

Turn to the Gainesville Area Duct Cleaning Experts

The indoor air quality experts at Mid-Florida Heating & Air are fully trained and certified to inspect, clean and seal your ducts so that you can breathe cleaner air and enjoy a more efficient HVAC system. Our staff has proudly served the Central Florida community since 1983. To schedule your appointment, call (352) 377-4414 or contact us here.

Indoor Air Quality

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For more information about our company and HVAC services in Gainesville and throughout Central Florida, please feel free to call us!