Living in the south with bugs that live in the air ducts

I have never heard of particular things that occur in the south until I started living there, but i never knew that particular southern foods such as grits were such a popular hit, this is because where I used to live up north, there would never be grits in any of the pizzerias. I felt somewhat crazy when I asked one of my up-to-date friends when my buddy and I went out to breakfast what grits were, however not only are there weird types of food, however there is also weird types of bugs. There are numerous weird types of spiders plus even cockroaches. I have never seen a cockroach before where I lived however that could be mainly because the weather conditions is so cold. I had to call my Heating, Ventilation, plus A/C professional several times to see if there were ways that I could keep out a type of cockroach from living out of my air ducts. It is so disgusting however my Heating, Ventilation, plus A/C professional has told me that it is pretty popular where I live since they like to nest in the trees that hover over my house. They will find ways into my home plus creep into the air ducts. They love the air ducts because it is dark plus cool in there since I run my air conditioning equipment almost all year, then my Heating, Ventilation, plus A/C professional also told me that I could switch out the air registers so that it is somewhat harder for the bugs to get into however if I wanted to remove it particularly I should call the pest control immediately.

central heater