Most homes do not have one pest problem, they have a rotation of them — ants in May, wasps in August, mice in October. A quarterly program treats the building rather than the insect, so the next one in the rotation finds the same sealed perimeter the last one did.
Each visit is a full exterior treatment plus whatever the interior needs that quarter. Nothing is applied indoors as a matter of routine: if there is no activity, the technician inspects, logs it and leaves. Between visits, any callback is free.
