How Often Do You Have to Clean Your Air Ducts?

January 19, 2022

Routinely cleaning your air ducts will help promote good air quality in your home or business.

How often does one have to clean their air ducts? What’s the appropriate air duct cleaning frequency of your home? While this can depend on several factors, most experts recommend cleaning your air ducts every three to five years—and air duct cleaning should always be performed by a professional.

Below we’ll take a look at some of the signs it’s time to clean your air ducts.

Signs of mold

One of the most common signs of mold is strange smells coming from your air ducts. If you suspect there’s mold in your air ducts, contact a professional right away. Mold can quickly grow and spread all over your home, sometimes resulting in major home damage. Mold is also terrible for your health and can cause sneezing, coughing and other allergy-related symptoms.

An expert will likely check for visual signs of mold in your air ducts. They’ll probably check in other places around your home as well. Mold typically grows in moist areas, so keep an eye out for leaks and standing water.

Clouds of dust

You should never see clouds of dust coming from your air vents. If you do, chances are there’s a large buildup of dust and other allergens in your air ducts. These allergens will have everyone in your home coughing up a storm in no time.

Granted, dust in the air could simply mean you need to change your air filters. When changing your air filters, take a look inside the ducts, and check for signs of major dust buildup.


Certain pests may try to make a home of your air ducts, including a variety of insects and rodents. If you notice strange sounds coming from your air vents, like scratching and skittering, there could be something living inside. You may be able to find the culprit by shining a flashlight down your air ducts, though it’s usually best to contact an exterminator or air duct professional first. They can either offer advice or come take a look for themselves.

Reasons you may need to clean your air ducts frequently

What’s the appropriate air duct cleaning frequency for your home? As we’ve mentioned, most homes and businesses only require air duct cleaning every three to five years; however, certain factors may require more frequent cleaning. For example, if you live with someone suffering from a respiratory illness, it’s probably better to clean your air ducts more frequently.

Your location may also affect the frequency at which you should invest in air duct cleaning services.

Don’t wait any longer

Air duct cleaning requires special tools and experience. You should never try to do it on your own. Instead, contact an experienced air duct cleaning service in your area. The experts at JMB A/C & Heating LLC can be at your home in no time to clean your air ducts. We’ll remove all dust, mold and other allergens quickly and efficiently.

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