The short version
Wildlife control involves identifying the species, using humane exclusion to seal entry points, and sometimes removing animals. DIY is risky; professional help ensures compliance with state regulations.
- Common nuisance wildlife includes raccoons, squirrels, opossums, skunks, and bats.
- Attics and chimneys are the most common entry points.
- Humane exclusion is the only permanent solution.
- Spring denning and fall seeking shelter are peak intrusion times.
- State regulations protect many species; professional handling is often required.
For homeowners, property managers, and landlords who have noticed signs of wildlife activity or want to prevent problems. Whether you’re dealing with a single raccoon in the chimney or a colony of bats in the attic, you’ll find practical, factual advice here.
What to look for
Wildlife seeks shelter, food, and water, often finding these resources inside human structures. Attics, crawlspaces, garages, and chimneys provide warm, dry environments perfect for denning or nesting. In spring, mothers give birth and raise young; in fall, animals look for winter refuge. Each species has unique habits: raccoons are strong and can tear through vents, squirrels gnaw through wood and wiring, and bats squeeze into gaps as small as 3/8 inch. Once inside, they leave droppings, urine, and debris that can damage insulation, create odors, and attract insects. Some species, like bats and skunks, can carry rabies, while raccoon roundworm (Baylisascaris) is a serious health risk to humans.
- 1Scratching, scurrying, or thumping sounds in walls, attic, or ceilings, especially at night for nocturnal species.
- 2Droppings (scat) in attic, near entry points, or on decks—size and shape vary by species.
- 3Gnaw marks on wood, wires, plastic pipes, or stored items.
- 4Torn or damaged vents, soffits, shingles, or chimney caps.
- 5Strong ammonia-like odor from urine accumulation in attics or crawlspaces.
- 6Animal tracks, footprints, or tail drag marks in mud, snow, or dusty areas.
- 7Visual sightings of animals entering or exiting holes under eaves, in foundations, or near rooflines.
Why it’s worth acting soon
- Structural damage: gnawing can weaken supports, and digging can compromise foundations.
- Fire hazard: squirrels and other rodents chew electrical wiring, increasing fire risk.
- Health hazards: droppings and urine can carry diseases like histoplasmosis (from bat guano) and raccoon roundworm.
- Reproduction: a small problem becomes a colony quickly; many litters are born per year.
- Secondary pests: droppings attract cockroaches, flies, and beetles.
Treatment options and typical costs
Humane Exclusion (Sealing Entry Points)
$400-$1,200
Inspection to identify all entry points, then sealing with heavy-duty materials like steel mesh, copper wool, and caulk. One-way doors allow animals to exit but not re-enter.
- Time
- 1-3 days, depending on property size
- Best for
- Preventing re-entry and permanent solution for most wildlife.
Live Trapping and Relocation
$250-$600 per animal
Trapping animals in humane cage traps, then releasing them in suitable habitat (where legal). Requires monitoring and handling of animals.
- Time
- 1-7 days depending on catch rate
- Best for
- Removing individual animals that are already inside, especially raccoons or opossums.
Exclusion + Restoration Package
$1,000-$2,500
Comprehensive service: removes animals, seals all entry points, and repairs damage (insulation, ductwork, roofing). Includes cleanup and sanitization of affected areas.
- Time
- 1-2 weeks
- Best for
- Severe infestations with significant damage, especially bats or squirrels.
Prices are typical published ranges. Ask what’s included before you compare quotes.
In the attic, look for flattened insulation, droppings and nests. Leave big cleanups to someone with the right gear.Identifying Common Nuisance Wildlife.
Each species requires a slightly different approach due to behavior and regulations. Bats are the only flying mammals; they roost in dark, warm places and leave guano that accumulates quickly. Skunks are black with white stripes and are known for their spray; they dig under foundations and decks. They are largely immune to snake venom and eat ticks, but they can carry diseases. Opossums are marsupials with white faces, hairless tails, and a distinct odor. They often gnaw on wood and wires. Squirrels come in gray, fox, and red varieties; they are active during the day and leave small, oblong droppings. Droppings are tubular, often containing undigested seeds. They are strong climbers and can open latches. Raccoons are easily recognized by their black face mask and ringed tail.
The Science of Wildlife Exclusion.
Insulation contaminated with urine or droppings should be replaced. After sealing, interior cleanup and sanitation are critical to remove odors that might attract other animals. This is considered the most humane and effective method because it addresses the root cause. One-way exclusion doors are often installed temporarily to allow animals to exit but not re-enter. Professionals use materials like 16-gauge steel mesh, copper mesh (which doesn't rust), and expanding foam rated for pest resistance. Animals can squeeze through surprisingly small gaps: a raccoon needs only a 4-inch hole, a squirrel 1.5 inches, and a bat just 3/8 inch. Exclusion means sealing every potential entry point, not just the obvious ones.
Brush, mulch and fallen fruit near the house give animals cover and food. Keep the edges tidy.Health Risks and Safety Precautions.
Professional wildlife removal technicians are trained to handle these risks safely. If you find a dead animal, double-bag it and dispose of according to local regulations. Never handle a bat with bare hands. Always wear gloves, a mask (N95 recommended), and protective clothing when cleaning affected areas. Leptospirosis is spread through urine. Raccoon roundworm (Baylisascaris procyonis) eggs are shed in raccoon feces and can cause severe neurological damage if ingested. Histoplasmosis is a respiratory disease caused by fungus in bat guano. Rabies is a concern with raccoons, skunks, bats, and foxes. Wildlife can transmit diseases directly through bites, scratches, or contact with droppings.
Legal and Ethical Considerations.
Always check your state's wildlife regulations before taking action. DIY attempts that violate laws can result in fines. Professionals follow guidelines from the National wildlife control Operators Association (NWCOA) and state wildlife agencies. Ethical control prioritizes humane methods: exclusion over trapping, and trapping over lethal control. It's illegal to harm or kill some species, like bats, without a permit. Euthanasia may be required for certain animals. Some states prohibit relocation because it can spread disease or disrupt ecosystems. Many species are protected, and permits are required for trapping or relocation. Wildlife control is state-regulated.
What affects the price
- Species involved (bats often require colony exclusions, which are more complex).
- Number of entry points and difficulty of access (steep roofs, tight crawlspaces).
- Extent of damage requiring restoration (insulation replacement, structural repair).
- Time of year (baby season may require waiting until young can leave, increasing labor).
- Local regulations and permitting fees (some species require special handling).
- Property size and number of stories.
- Urgency (emergency service often costs more).
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What is the most common wildlife problem in your area?
When to call for help
Call a professional wildlife removal service if you hear persistent noises, see droppings, notice damage, or suspect an animal is trapped. Also call if you have bats (protected in many states), if you see an animal acting strangely (possible rabies), or if you need to ensure humane and legal removal.
What you can do yourself
DIY wildlife control often fails because it addresses the symptom (one animal) rather than the root cause (entry points). Sealing a hole without ensuring all animals are out can trap and kill them, creating odor and fly problems. Professionals have the training, equipment, and knowledge of local laws to handle the job safely and effectively. They also use durable materials that prevent re-entry. The cost of professional exclusion is usually recouped by avoiding future damage. For simple problems like a single squirrel in the attic, a live trap might work, but exclusion is still needed. For bats or raccoons, professional help is strongly recommended due to health risks and regulations.
Where you live matters
Always check with your state's Department of Natural Resources or Fish and Wildlife for regulations. Local wildlife rehabilitators can provide advice for specific species. Peak seasons are consistent: spring (March-May) for denning and fall (September-November) for shelter-seeking. Regardless of region, the principles of exclusion and sanitation apply. The West Coast deals with roof rats, raccoons, and occasionally coyotes in urban areas. Midwestern states have high numbers of skunks and groundhogs. The South sees more opossums, armadillos, and snakes. In the Northeast, raccoons and squirrels are dominant, and bat colonies are common in older homes. Wildlife problems vary regionally.
Simple ways to keep wildlife away
- Trim tree branches at least 6 feet from your roofline to prevent access.
- Install chimney caps and heavy-duty vent covers (steel mesh).
- Seal gaps around pipes, cables, and vents with steel wool and caulk.
- Store garbage in metal or heavy-duty plastic cans with tight lids.
- Remove bird feeders and pet food from outdoors if wildlife is persistent.
- Keep attics and crawlspaces dry and well-ventilated to discourage nesting.
- Inspect your home annually in early spring and fall for potential entry points.
Metal mesh keeps animals out of vents for good. Foam and light screen won't hold.Did you know?
Opossums are largely immune to most snake venom and eat thousands of ticks per season, helping reduce Lyme disease risk.
By forgetting the locations of their buried nuts, squirrels help plant thousands of trees annually.
A group of raccoons is called a nursery, while a group of squirrels is called a scurry.
Questions people ask
What should I do if I find a baby raccoon in my attic?
Do not touch it. The mother may be out foraging. If you handle the baby, the mother may abandon it. a professional; they can determine if the mother is returning and use exclusion methods that reunite the family.
How do I get rid of bats in my attic?
Wait until after the pups are weaned (usually August). Install a one-way exclusion device that allows bats to exit but not re-enter. Then seal all gaps. Never seal bats in during summer, as young can die and cause odor. Professional help is recommended due to health risks and regulations.
Can I use poison to kill squirrels in my attic?
No. Poison is inhumane and illegal for squirrels in most states. It can also kill non-target animals like pets or owls. Additionally, a poisoned squirrel may die in a wall, causing a terrible odor. Exclusion is the only safe and legal solution.
How do I know if I have raccoons or opossums?
Raccoons have a mask and ringed tail; opossums have a white face and hairless tail. Raccoons are more destructive and often make thumping sounds. Opossums tend to be less damaging and may hiss or play dead. Droppings also differ: raccoon scat is tubular and often contains seeds; opossum scat is smaller and pointed.
What is the best time of year for wildlife exclusion?
Early spring (March) before birthing season and late fall (November) after young are independent are ideal. Avoid exclusion during spring and summer when babies may be trapped inside. Fall is also good because animals are seeking warmth and can be excluded before they settle in for winter.
How long does it take for a professional wildlife removal?
It depends on the severity. An inspection takes 1-2 hours. Exclusion can take 1-3 days. If restoration is needed (e.g., insulation replacement), the whole process may take 1-2 weeks.
Does feeding wildlife cause nuisance problems at home?
In Wildlife Identification, nuisance wildlife is usually removed by trapping, then the entry points are sealed so the next animal cannot move into the same spot. In Wildlife Identification, because many animals are protected by state rules, removal has to be done legally, and a written plan should spell out removal, exclusion, and cleanup.
Sources (9)
The facts in this article come from the public sources listed above. Every home is different, so ask the company you talk to about pricing and what’s included. Published by Wildlife Exterminator · Updated September 11, 2026 · How we write these guides