Many homeowners do not realize that the HVAC ventilation system is a frequent highway and nesting ground for rodents, insects, and other pests. Air ducts provide a dark, isolated environment that attracts mice, rats, roaches, and various bugs. Once inside, these critters can damage flexible ductwork, tear insulation, and leave behind droppings, nesting materials, and dander.
Because the heating and cooling system actively circulates air throughout the house, any biological debris left behind by pests can easily travel into bedrooms and living areas. Common warning signs of pest activity inside the ventilation include unusual scratching or scurrying noises inside the walls or ceilings, an unexplainable foul odor when the AC kicks on, or a sudden increase in insect activity near air registers.
Simply treating the main living areas of a home often leaves the root environment inside the ductwork unaddressed. When pests have compromised a ventilation system, proper inspection and targeted sanitization are necessary to ensure the environment is fully restored and the circulating air is safe to breathe.
