Hello, today I serviced your home for yellow jackets and European hornets. The interior entry point was already blocked off as you reported. I applied a liquid treatment to the exterior where they are entering the roof. I also treated and removed a couple of hornets nests along the eaves. Please allow 7-10 days for the treatment to take effect. If activity is still found after that time please call for an appointment. Have a great day and thank you for choosing Green Pest Solutions.