07/23/2026
Rodents can cause thousands of dollars in damage to your HVAC system before you even realize they’re there.
They chew through ductwork, insulation, wiring, and other components, reducing your system’s efficiency and creating costly repairs. Even worse, they leave behind urine, droppings, nesting material, and sometimes decomposing carcasses that can contaminate the air moving through your home.
If you hear scratching in the attic, notice strange odors, or your system isn’t performing like it should, don’t ignore the warning signs. Catching rodent activity early can save your HVAC system and your indoor air quality.