Opossum Removal for Chicago-Area Homes

The Virginia opossum is North America's only marsupial, and it has made itself at home across Chicagoland, from city alleys to the edges of forest preserves. Opossums are nomadic scavengers that wander from shelter to shelter, eating whatever they find: insects, snails, fallen fruit, pet food, bird seed, garbage and carrion. Most of the time they pass through without incident. Trouble starts when one moves under a deck, into a crawlspace, behind a garage wall or beneath a shed, especially when a female settles in to raise young. Opossums are generally shy and often play dead when threatened, but a cornered one will hiss, drool and bare a mouth full of teeth. Trapping and handling wildlife is regulated in Illinois, Indiana and Wisconsin, so the safest route is a licensed wildlife specialist. Call to be connected with one near you.

Signs of an opossum around a Chicago-area home

• A gray-and-white animal with a pointed pink nose and hairless tail seen at night
• Garbage cans tipped or bags torn open in the alley, garage or side yard
• Pet food or bird seed disappearing from porches and patios overnight
• Hand-like tracks with a thumblike toe on the hind foot in mud or snow
• Loose soil or a burrow entrance under a deck, stoop, shed or concrete slab
• Rustling or thumping in a crawlspace, garage or under the house after dark
• A strong musky odor, or a smell of decay if an animal has died in a hidden space
• Droppings near den sites, garbage areas or in the garage

Opossums in Chicagoland

The only opossum in the region is the Virginia opossum, and it is common in all the counties around Chicago, as well as northwest Indiana and southeast Wisconsin. Adults are roughly house-cat sized, with coarse gray fur, a white face, black ears and a long, scaly tail. Opossums do not dig elaborate burrows of their own. Instead, they borrow abandoned dens or squeeze into existing gaps under decks, porches, sheds and foundations. Females carry tiny newborns in a pouch for about two months, then the young ride on the mother's back before heading off on their own. In the Chicago area, breeding usually begins in late winter, and some females raise a second litter later in the season. Opossums are not true hibernators, so on mild winter nights they remain active, although cold snaps push them into sheltered spots, which is often when they move closer to homes.

Why opossums are a problem here

Chicagoland is almost ideally designed for opossums. Alleys lined with garbage carts, garages with gaps under the doors, backyard compost, fallen fruit and bird feeders give them reliable food, while decks, sheds, stoops and crawlspaces offer shelter. Neighborhoods bordering forest preserves, rivers, railroad corridors and golf courses see especially steady traffic. Once an opossum settles under a structure, it may tear insulation, leave droppings and odors, fight with pets or startle people in the garage. Opossums can carry fleas, ticks and mites, and their droppings may contain parasites and bacteria, so cleaning den areas calls for care. They are also a common victim of hidden-space deaths, leaving odors that are hard to locate. Many homeowners simply want the animal gone and the space sealed so the next wandering opossum does not move right back in.

How local wildlife specialists handle it

A licensed wildlife specialist starts with an inspection to find where the opossum is sheltering and whether young may be present. For animals living under decks, sheds or stoops, the common approach is exclusion: installing a one-way door at the active entrance so the opossum can leave but not return, then sealing the perimeter with buried wire mesh or hardware cloth to prevent digging. When trapping is appropriate, specialists use humane cage traps and follow state rules for handling and relocation, which differ between Illinois, Indiana and Wisconsin. If a mother with pouch young or back-riding babies is found, the pro plans the timing so the family is not separated. After removal, the specialist can address sanitation, remove soiled insulation or debris, and recommend changes like securing garbage carts and removing outdoor pet food to make the yard less attractive.

Prevention tips

• Keep garbage and recycling carts closed tightly, ideally inside a garage or enclosure
• Bring pet food and water dishes inside at night
• Pick up fallen fruit and clean spilled seed under bird feeders
• Close gaps beneath decks, porches and sheds with an L-shaped buried wire mesh skirt
• Keep garage doors and service doors closed after dark
• Seal crawlspace vents and foundation openings with sturdy screening
• Secure compost in closed bins rather than open piles
• Trim dense shrubs and clear brush piles near the house that offer daytime cover

What affects the cost

The cost of opossum removal varies with the situation. Trapping and removing a single animal from a garage is simpler than excluding an opossum from under a large deck, where the entire perimeter may need a buried mesh barrier. The number of animals and whether a mother with young is involved affect timing and the number of visits. The type of structure matters: concrete stoops, decks close to the ground, sheds on skids and homes with crawlspaces each need different exclusion methods and materials. Cleanup and repair work, such as removing soiled insulation, sanitizing den areas or finding a dead animal in a wall or crawlspace, adds to the total. Some wildlife specialists offer warranties on exclusion work. Ask what is included, how many trips are planned and what materials will be used to seal the area.

Seasonal timing in northern Illinois

Opossum calls in Chicagoland come in all seasons, but they peak at a few predictable times. Late winter and early spring bring the breeding season, when opossums travel widely and females look for secure den sites under decks and sheds to raise their young. Spring and summer are when homeowners discover mothers with babies on their backs, which requires careful timing for removal. Late summer and fall bring wandering juveniles that have left their mothers and are looking for places to live. Winter sends opossums into sheltered spots, including garages and crawlspaces, during cold stretches, and their tails and ears are prone to frostbite. The best time to install preventive barriers is late summer or early fall after young have dispersed, or any time a structure is confirmed empty.