The National Association of Air Duct Cleaners (NADCA) recommends that air ducts be cleaned every three to five years in order to maintain good indoor air quality. However, certain environments may require more frequent commercial air duct cleaning. A few factors can influence how often duct systems should be cleaned. While the standard recommendation is every three to five years, it may be necessary to clean them more frequently depending on the situation.
Cleaning air ducts at least once every four to seven years is essential for ensuring good indoor air quality. The process of cleaning air vents is relatively simple and can be done by the homeowner. However, if there are any repairs that need to be made or if there is a serious problem such as mold contamination or a rodent infestation, it is best to hire a professional air duct cleaning service. Mold and mildew can have a negative impact on your health, so if there is visible mold growth inside the air conditioning system, it is important to call an air conditioning company to clean the vents before the mold and mildew spores spread throughout the rest of the house.