Today I completed your one time for Yellowjackets. After inspecting your 2 Yellowjacket nests, I decided to start with the upstairs one in daughter’s room wall by window. I was able to reach entry point from window, and treat with an aerosol. This I believe killed all Yellowjackets in that nest. Then the nest above front porch where the roof meets the siding was treated with a liquid residual application. As advised, allow 7-10 days to see a decrease in activity. After that if you see any uptick in activity please contact our office with any concerns or questions. Thank you for choosing Green Pest Solutions and have a great day.