Most homes and businesses will have a problem with indoor flies. It is important to correctly identify the type of fly in your home to control it. Stages of development allow flies to take advantage of different breeding and living sites. The answer to any indoor fly problem is to find and eliminate the source. Since each type of indoor fly prefers slightly different breeding sites, identifying the fly should be the first step in any control effort. For truly effective fly control, you need professional pest control services.