Animals in Your Attic? The Columbia Homeowner's Guide

The noise tells you most of what you need. Fast scampering at dawn and dusk — like something rolling acorns across the ceiling — is gray squirrels. Slow, heavy thumping strictly after dark is a raccoon. Light scratching through the night, especially in winter, points to flying squirrels or rats. Faint fluttering and squeaking near the walls at dusk, plus pepper-like droppings on the porch under a gable vent, is bats. Shuffling under the floor rather than overhead is a crawl-space animal — opossum or skunk.

Signs confirm it. Squirrel entry holes are golf-ball-sized with chewed edges at soffits and vents. Raccoon damage looks torn, not chewed — pried soffits, bent vents, muddy prints on downspouts. Bat guano collects below the exit point and crumbles to powder (rodent droppings don't). Opossums leave large tapered droppings and a musky smell near the crawl space. And the smell that has no live-animal signs — that's the dead animal scenario.

Act this week: raccoons or squirrels in the attic (wiring damage compounds daily, and spring babies turn a simple job into a complex one); a bat found in a bedroom (rabies protocol clock); anything dead and smelling (flies come next); a snake indoors you can't identify (treat as a copperhead until told otherwise — see the snake safety block).

Schedule soon, don't panic: scratching you only hear outside, an opossum under the deck, bats in a gable vent with no living-space contact, evidence of past activity but no current noise.

Handle yourself: a snake passing through the yard (leave it), an opossum playing dead in the lawn (it will leave), prevention work like vent screens and firewood relocation.

The question everyone asks first: "can the county take care of this?" The honest answer is no. Richland County Animal Services handles domestic animals — stray and dangerous dogs, bite reports, cruelty cases — and the City of Columbia runs its own animal services for pets. Neither removes wild animals from private property. The raccoon in your attic, the bats in your vent, the squirrel in your soffit: those are a paid, private service, full stop.

What IS free: inspections. Several Columbia wildlife companies advertise free inspections — you get species confirmation, entry-point mapping and a written price without paying anything. Also free: SC DNR's published guidance on nuisance wildlife, and prevention work you do yourself. The free-vs-paid line in practice: diagnosis can be free; removal, exclusion and cleanup are what you pay for.

In South Carolina, wildlife removal for hire is done by Nuisance Wildlife Control Operators (NWCOs) registered with the SC Department of Natural Resources. Registration is the baseline credential — ask for it. On top of that, voluntary certifications like NWCOA (National Wildlife Control Operators Association) training signal a company that invests in the craft; a few Columbia operators publish these on their sites.

The rules that affect your job directly: bat exclusions are restricted during the April–July maternity season; raccoons and other rabies-vector species have relocation restrictions; and certain species (like bats broadly) can't be harmed at all — exclusion is the only legal path. A legitimate operator raises these constraints before you ask. The questions worth asking every bidder are on our cost page, and the companies we've verified are on the companies page.

Columbia stacks wildlife pressure the way Charleston stacks water risk. The Congaree River and its creek corridors run wildlife straight into town; the metro's older neighborhoods — Shandon, Rosewood, Melrose Heights, Forest Acres — combine mature tree canopies touching rooflines with 60- to 100-year-old houses whose soffits and vents predate modern screening; and the humid subtropical climate means animals are active nearly year-round and that contamination in attics and crawl spaces turns into mold-and-odor problems on a fast clock.

The homeowner's annual rhythm that prevents most of it: walk the roofline every spring and fall looking for new gaps; keep tree limbs six-plus feet off the roof; screen vents and cap the chimney before something asks you to; secure trash and pet food; and when you hear the first scratch — not the third month of it — get the free inspection.