How do I get animals out of my ductwork?

There are always problems when you move into a new house.

When I say “new” I mean “a new place to call home” not that the building was recently constructed. This house is over 40 years old, but I still think of it as my new house. When a place is this old, there are a wide variety of little problems. Since this building had been empty for almost a decade, I knew there would be a lot of dampness, mildew, and possibly even insect or animal infestations. I thought that part would be easy, but I was very wrong. The squirrels had been living in the ductwork of the house for almost ten years, and they had no desire to leave. I had to call in an expert for some advice, because I didn’t want to spray poison and end up with air ducts filled with rotting animals. It took the Animal Control expert almost a week to get the ductwork clear of animals, at which point I contacted the local contractor about sending in a team. The entire air duct system would have to be scrubbed and sterilized, because who knows how much filth and disease lay inside those ducts? It turns out that no amount of cleaning or fertilizing could save the air ducts, they were too badly damaged from so many years of infestation. I had to get the old ducts removed, and have all-new ductwork installed, which took a while and was shockingly costly. From here on out I will be diligent about cleaning and taking care of my ductwork.
hvac technician