We had contractors here taking down parts of a wall and ceiling from a roof leak and they discovered ants. I called Presidio and Scott Simmerson came out to spray for us. As the contractors took down more of the ceiling, they unfortunately found more ants and had to stop working. I called Scott again. He suggested that he should be here when the contractors are, so he can see what they see and dust again if needed. I was so impressed that he took the extra time to be here with the contractors and make sure the job was done right. I appreciate the extra effort and will definitely use Presidio again if the need arises. Thank you so much!