Cockroaches can be eliminated from a home, but reinfestations can occur depending on the particular species involved and where your home is situated.
Outdoor cockroaches, like the large smoky browns in the Southeast or Oriental cockroaches in the Northeast and Midwest, may continually try to enter a home from the outside.
Regular exterior cockroach control, in addition to sealing outside cracks and holes in walls, can help limit such invasions.
A Terminix specialist can look for any conditions that might contribute to cockroach infestations and make recommendations on how to get rid of cockroaches.