How often should I clean my ducts?

Most residential duct cleaning should be performed about every five years or after a renovation.

Ducts do get dirty, but the majority of the time it is the furnace motor, blower wheel, heat exchanger and evaporator coil that become dirty and clog up the system. These can cause breakdowns and increase energy usage. It is very important to clean the equipment at the same time the ducts are cleaned.