The ductwork in your home is essential to the operation of your heating and air conditioning system. If the ducts are full of dust and debris it can greatly decrease the amount of air that can move through them, and it can also carry with it particles that lower the air quality in your home. Unfortunately, for a homeowner, it may be difficult to access these ducts for a cleaning. Often, the ducts will be sealed away inside the walls of your home. While you could try to invest in tools that will let you get to some of the ducts, for a complete, thorough cleaning, a professional company will be your best choice. Usually, these companies will have a high powered vacuum that connects to your network of ducts and they use this in conjunction with tools that dislodge anything that is more stubborn. They can also treat your system to prevent microbe growth and further improve the air quality in your home.