12. Dead bugs
If you notice several dead bugs of the same species on the nearby window ledges of your basement, then it can be another sign of infestation.
13. Your pet is acting weird
If you have a cat or a dog and they start behaving weirdly, like scratching a certain area of your walls, they can be trying to tell you that you have pests in your home.
What should you do in these situations?
Call the exterminator, they will come and look for the pests and tell you what this is really about and what you need to be doing.