Completed quarterly service today. Inspected and serviced interior and exterior. Only had access to units 2, and 4 today. Knocked on units 1, and 3 but no answer. Applied a liquid application to exterior foundation, doors, windows, and to interior baseboards of apartments 2 and 4 to help maintain roach activity. Please allow 10-14 days for treatment to take full effect. Thank you for choosing Green Pest Solutions!