Good afternoon, I was here today to complete a one time service for bees. I inspected the area of concern. Window and attic/bedroom is not properly sealed and was bar gaining entry. I removed mud Dobber’s nest from inside this bedroom and applied an aerosol to openings where wasp were coming through. There is no exterior access to window due to its placement window should be sealed immediately after treatment. If wasp activity continues after five days please call our office to have treated again. Have a wonderful day. Thank you for choosing Green Pest Solutions.