Hello it was nice speaking with you today. I completed your initial service. We found the gap where yellow jackets were entering from. It looks like they made a nest somewhere above the insulation. I applied a liquid residual outside to the entry point. Once the activity is gone in the basement we’ll gladly remove the nest if accessible. I also applied a separate liquid treatment to the perimeter foundation of the home targeting ants and other general pests. No other issues found or reported. Please allow 5 to 7 days for the yellow jacket treatment to take effect. If activity remains after this period, please call for another treatment. Have a great day and thanks for choosing Green Pest Solutions.