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  • Writer's picturePest Assassin

6 Signs of a Cockroach Infestation in Your Home

Updated: Jan 24

American cockroach infestation

Discovering a cockroach infestation can be a nightmare for homeowners and businesses alike. These elusive pests, notorious for their ability to hide, can cause significant problems if left unnoticed. However, there are several common signs that indicate the presence of roaches within your property.

By recognizing these telltale clues early on, you can take swift action to address the issue. Stay vigilant and be prepared to combat these unwelcome invaders to ensure a pest-free environment.

Physical Sightings

The first and most obvious sign of a cockroach infestation is the presence of live roaches. Cockroaches are nocturnal insects, preferring to hide during the day and emerging at night to search for food and water.

If you spot a live cockroach scurrying across your floor or countertops, it's a clear indication of an infestation. Pay attention to their physical characteristics, such as their brown or reddish-brown color, flat oval-shaped bodies, and long antennae.

American cockroaches lay dead

Dead Roaches

Finding dead cockroaches in your house can be a telltale sign of a potential infestation. While live cockroaches are more obvious indicators, the presence of dead cockroaches suggests that there is an established population nearby.

Cockroaches have a relatively short lifespan, and if you come across multiple dead roaches, it could mean that the infestation is large enough to support a significant number of them. Dead cockroaches may be found in various locations, including floors, countertops, basements, and hidden corners.

It is important to note that the discovery of dead cockroaches should prompt you to take action and investigate further.

Roach Droppings

Cockroach droppings, often referred to as frass, are another telltale sign of an infestation. These tiny black or brown specks resemble coffee grounds or pepper flakes and are typically found in areas where cockroaches congregate, such as kitchen cabinets, pantries, and behind appliances. So if you don't drink coffee and don't keep pepper in your home, chances are you have roaches!

Take note of any concentrated areas of droppings as they indicate high cockroach activity and potential nesting sites.

Unpleasant Odor

Cockroaches emit a distinct, musty odor that becomes noticeable in areas with a significant infestation. This odor is caused by pheromones released by cockroaches to communicate with each other. If you notice a pungent, oily, or musty smell in your home, especially in dark and humid areas, it's a strong indication of a cockroach problem.

Shed Skins

As cockroaches grow, they shed their exoskeletons, leaving behind a hollow, translucent shell known as a molt. These remnants can often be found in secluded areas where cockroaches hide, such as basements, crawl spaces, and behind furniture. The presence of shed exoskeletons indicates an established cockroach population and their continuous growth.

Cockroach egg capsules containing several cockroach eggs

Egg Casings

Cockroach egg casings, also called oothecae, are a huge sign of an infestation. These casings are dark brown or reddish-brown, about the size of a coffee bean, and contain multiple eggs, as shown above.

Cockroaches prefer to deposit their egg casings in warm, dark, and protected areas close to food sources. Check behind appliances, cracks and crevices, and hidden corners for the presence of egg casings. If you find any, it's a clear indication of an established roach infestation.

Damage to Food Packaging and Surfaces

Cockroaches are notorious for their feeding habits, chewing through various materials, including cardboard, paper, and even thin plastic. If you notice gnaw marks on food packaging, particularly in the corners or edges, it suggests that cockroaches have been present. Additionally, they may leave behind smear marks or droppings on surfaces near their feeding areas.


So how can you tell if you have cockroaches in your home? By being vigilant and recognizing the physical sightings, you can take early action to eliminate the infestation.

Remember, cockroaches can multiply rapidly, so it's essential to contact a cockroach exterminator like Pest Assassin if you suspect an infestation. Our team of experts has the knowledge, experience, and tools to effectively eradicate cockroaches and implement preventative measures to keep them from returning. Don't let these pests invade your home; take action and reclaim your space.

If you're dealing with a cockroach infestation or have any other pest control concerns, contact Pest Assassin today. Our dedicated team is here to provide you with efficient and reliable pest management solutions.

Exterminator spraying pesticides for a cockroach infestation

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