Today I completed your one time service for Yellowjackets. It was nice to meet you today. After an inspection, you do indeed have Yellowjackets nesting in the left front corner of home. I first taped up potential breech point in kitchen ceiling and spot treated on the inside with an aerosol to see if I hear the nest near in kitchen ceiling. I did not detect the nest near. I then treated the entry point on the front left corner of home with a liquid residual treatment. As advised, you should see a decrease in Yellowjacket activity over the next 3-7 days. And after 2 weeks you shouldn’t see any activity on the exterior. If you do please contact our office. Thank you for choosing Green Pest Solutions and have a great day.