Thank you for choosing Greenpest. My name is Eric and I was your technician for today. Today, I began my service by first inspecting the inside and outside of where the affected areas were located after my inspection it was determined that the activity was taking place in the wall next to your window. As recommended by our customer service staff, you opened up a hole with your drill to the void of your wall. I then injected an aerosolized insecticide inside of the infested area. Please allow for 2 to 3 days for the product to show its full effectiveness. If you have any questions or concerns, feel free to reach out to us. Thank you and have a nice day.