Hello. Today I completed your one time service for bees. Upon inspection, I found three different entry points for yellow jackets. Your husband mentioned finding a couple yellow jackets inside your upstairs bathroom. I blocked the openings along the walls with towels to help prevent entry. I sprayed the vent side of the gutters and hole in the molding with a non-repellent liquid solution targeting stinging insects. Please allow 3 to 5 days for the treatment to take full effect. If you’re still seeing activity or if you have any questions or concerns, please contact customer service. Thank you for choosing Greenpest solutions.