We called Petty Pest Control on a Friday and told them of our problem, we were planning on heading up to our cottage that night, but the nest was just spotted in the front entrance of our house. Chris set up an appointment for that evening and sprayed. He told us to check in with him on Monday when we returned to see if the one application worked. It usually does he said, but sometimes in a situation like ours he needed to do a second application. When we returned there was no sign of any bee's, it worked perfectly. If a second trip was required, Chris said it would be at no extra charge. Great service at a good price, we will definitely call again if we have any pest issues.