If someone in your family suffers from a respiratory condition, duct cleaning could make sense as part of an overall plan to reduce triggers in the home. It’s also wise to clean the ducts after a new home is built and after major remodeling projects to get rid of construction dust.

You should also consider duct cleaning if rodents or pests have infiltrated the ductwork, if water has gotten into the ducts, or if pet dander or nicotine smoke is in the home.