I recently used Varmint Gone when I discovered that squirrels managed to get into my attic. Varmint Gone (Cory) installed their humane, one-way exclusion system and later decontaminated and cleaned my attic after the squirrels had left. They additionally installed galvanized steel flashing around my house at various open points to prevent future entry by critters. Cory was prompt, super-nice, informative and effective. I HIGHLY recommend this company!