German cockroaches are often referred to as the most common cockroach in the world. They prefer warm, humid areas, and many times live and breed indoors.
Infestations start when females lay their eggs. The females carry an egg capsule that can carry up to 40 eggs and they rapidly reproduce. With multiple German cockroach females in one location, they can populate a home relatively fast without proper attention.
Removing German cockroaches is only a part of gaining control. Sanitation and exclusion are vital elements to the process. Inspections will determine the scope of the problem and what the proper treatment methods are but without deep cleaning a home, the infestation may return. Cleaning to remove food and water sources will force German cockroaches to seek those elsewhere.