Ants can contaminate food and form persistent trails through kitchens and pantries. Hidden nests make infestations difficult to eliminate, and carpenter ants can cause additional problems by tunneling through wood.

Spiders can leave messy webs and settle into closets, garages and stored items. Repeated sightings may signal an insect food source or easy access indoors. Most spiders are a nuisance, but black widows and brown recluses need careful identification. Controlling recurring activity starts with finding what’s attracting them.

Cockroaches can contaminate food and surfaces, while their droppings and shed skins can trigger allergies. They often hide behind appliances and inside cabinets, allowing infestations to grow unnoticed. Control starts with finding those hiding places and reducing access to food and moisture.

Bed bugs can cause itchy bites and disrupt sleep. They hide in mattress seams and furniture joints, allowing infestations to go unnoticed. These pests can travel on luggage or used furniture, so even a clean home can become infested.