Why Is There Water in My Air Ducts?

Moisture in air ducts can lead to serious problems like mold or mildew growth, and can indicate underlying issues that need to be addressed. Common reasons for water in air ducts include low duct temperature, excess humidity in the attic or crawl space, and cool air passing through a duct in an un-air-conditioned room. To prevent moisture in air ducts, homeowners can eliminate underlying issues, use a dehumidifier, seal off unused A/C ducts, and insulate the air ducts or the space where the ductwork is located. If mold or mildew is already present in the air ducts, professional air duct cleaning services and inspections can be helpful.