I had a sudden and large infestation of ants. The first technician that came to the house explained that she was assigned to me because the original technician had called in sick that day, she seemed to working as she should, explaining as she went along. The number of ants decreased the following day, only to increase the following day, at which time I called the office and was told that it takes up to 7 days for the treatments to work effectively. After waiting the 7 days and dealing with an increasing number of ants, I called the company again and they sent another technician, Johnathan. When Johnathan was finished the number ants was already decreasing, he also left ant traps all over the house. I am pleased to say that up to this date I have had no issues w ants or any other pests.