Last summer we were infested with large carpenter ants, that were eating away at the structure of our house. We called these guys and the ants disappeared. Thank goodness we exterminated before the damage was too bad. What I really liked about this company was that they use environmentally safe methods to exterminate with. With little kids that is extremely important to me. In fact they came back just last month to spray the house again to keep the ants away. Very reasonable prices compared to other services.