After living in my house four years and while eight months pregnant, I saw a scorpion. I called Bulwark crying. They were there the next day. Found three more dead ones after that within a week. None since--that was two years ago. Bulwark is also super communicative--they text to let you know when service is scheduled. If you see a bug--almost always ants (outside) for us--they come back in between scheduled maintenance for free. Great company:)