American Cockroaches: The largest of the common species, these reddish-brown roaches are often called “water bugs” but are far more destructive. They prefer damp, warm areas like basements, boiler rooms, utility tunnels, and sewer lines, which makes them a frequent problem in commercial and industrial facilities. Their size and speed alarm employees and visitors, while their droppings and secretions contaminate surfaces and produce a foul odor. Once established, they travel widely through a building, spreading bacteria and allergens.

German Cockroaches: Light brown with two dark stripes behind the head, German roaches are the most persistent and fast-breeding species. They thrive in kitchens, restrooms, vending areas, and employee breakrooms—anywhere food and moisture are available. Even a single sighting usually means hundreds are hidden inside walls, cabinets, and appliances. German roaches are notorious for contaminating food prep areas, triggering health code violations, and quickly overwhelming facilities if not treated aggressively.

Asian Cockroaches: Nearly identical in appearance to German roaches but with different behavior. Asian roaches are strong fliers and are highly attracted to lights, which makes them a regular nuisance around entry doors, outdoor lighting, and landscaped areas. They often migrate indoors from lawns, mulch, and vegetation, creating sanitation issues and employee complaints. Because they can fly in from outside, infestations can be harder to control without addressing exterior pressure.