First, he showed up 15 minuts early! while he was waiting for me, he walked around our cabin identifying holes bats could get in. Once I got there, we searched the inside of the cabin for the single bat I knew was inside. He showed me all the places they like to hide and told me many bat facts. Not finding the bat, we set out water for the bat and some traps.Then, on Sunday we found the single bat we knew that was inside. Outside the cabin he used two different ladders to get at all the posisble holes a bat could get in and plugged them with silicone caulk. He talked with me the whole time showing me signs of where bats had been outside. He also told me where to work this spring to plug things up better and what materials to use. He warranties all his work and I would definitely use him again.