”But I cut down the trees, how do squirrels get on my roof, in my attic?!”
Let’s just put this falsehood to bed. They don’t need the trees, your house is a “tree.” Wildlife exclusion, AKA animal proofing, is specialized finish-level construction work that’s above and beyond typical construction to prevent animal intrusions; it’s the one and only key. Keep your trees cut back so they don’t rub on your home…