For many homeowners, “out of sight, out of mind” doesn’t apply when it comes to keeping a clean, well-maintained home. In fact, what we can’t see is often one of our greatest concerns. After all, mold, pests, and other unhealthy substances often lurk and grow in the dark recesses that we can’t see or reach. It’s natural that the clients that I work with are often disturbed about the state of their home’s ductwork, considering the volume of dust and debris that gets filtered unnoticed through them. But in truth, duct cleaning is largely unnecessary except for a few circumstances. Instead of relying on the word of a professional duct cleaning service, understand that your ducts can remain mostly untouched without routine maintenance except for a few situations.