The short version
Nevada is the state where wildlife follows moisture rather than warmth. With about 6 inches of rain a year and humidity near 31 percent, an irrigated yard is an oasis, and a 100F summer makes any shaded cavity valuable. Identify the animal from the noise timing and the droppings, then close the openings, because a mild 31F winter means nothing leaves on its own.
- Nevada sees peak wildlife intrusions in spring (denning) and fall (seeking warmth).
- Common offenders: raccoons, squirrels, opossums, skunks, and bats.
- Attics and chimneys are top entry points; exclusion is the only permanent fix.
- State regulations protect certain species; professional handling is often required.
We also assist renters who need to coordinate with property owners. Whether you hear scratching at night, spot droppings, or notice damage, this resource helps you identify the problem and choose the right response. For Nevada homeowners, property managers, and landlords dealing with unwanted wildlife in attics, crawlspaces, garages, or chimneys.
What to look for
Heat that severe makes an attic hostile for months, so the sought after spaces are the cool ones: shaded crawl voids, the underside of a slab, wall cavities on the north side, and roof seams that stay in shadow. This is the opposite of the northern pattern, where animals climb toward warmth. A median winter low around 31F completes the picture. Nothing here is forced out by cold and nothing hibernates its way through a season, so an animal that establishes itself in a Nevada building can stay indefinitely. Removing it changes nothing unless the opening closes behind it. Two numbers explain most of the wildlife pressure in this state. The first is 6 inches of annual rainfall. In country that dry, an irrigated yard with a drip line, a leaking hose bib or a pool is a genuine oasis, and animals will travel a long way to use one. That is what brings them onto the property in the first place, long before any of them look at the building. The second is 100F summer highs.
- 1Scratching, scurrying, or thumping sounds in the attic or walls, especially at dawn or dusk.
- 2Droppings (feces) in attics, near entry points, or in garages—raccoon droppings are large and tubular; bat guano accumulates in piles.
- 3Visible damage: chewed wood, torn insulation, gnawed wires, or holes in siding/roof.
- 4Strong odors from urine, feces, or decomposing animals trapped in walls.
- 5Tracks or paw prints around entry points, particularly in dusty attics or crawlspaces.
- 6Animal sightings near the house, especially raccoons on roofs or opossums under decks.
- 7Unusual pet behavior—dogs barking at walls or cats fixating on certain areas.
Why it’s worth acting soon
- Structural damage: Animals can chew through electrical wires, creating fire hazards.
- Health hazards: Raccoon roundworm, bat histoplasmosis, and hantavirus from rodent droppings pose serious risks.
- Secondary infestations: Fleas, ticks, and mites carried by wildlife can spread to pets and humans.
- Cost escalation: A small hole can become a major repair if animals expand it or if multiple generations occupy the space.
- Legal liability: Improper handling of protected species can result in fines; waiting may also violate local health codes.
Treatment options and typical costs
Inspection with a water survey
Quoted after inspection
A walk of the roofline, foundation, slab edges and irrigation system to find both the entry points and the reason the animal is on the property at all. In Nevada the second half matters as much as the first, because closing a hole while leaving a leaking drip line running simply moves the problem next door and back again.
- Time
- One to two hours
- Best for
- Any property with repeat activity
One-way exit device with sealing
Quoted after inspection
Secondary openings are closed first, then a device on the main entry allows the occupant out and blocks its return. No animal is handled and none is caged. It is the standard method for bat colonies outside the maternity period and works for raccoons and squirrels in a roof or wall.
- Time
- Three days to two weeks
- Best for
- Roof seams, wall voids and established roosts
Cage trapping with scheduled checks
Quoted after inspection
Used where an exit device will not mount, most often a skunk denned under a patio slab or an animal in a sealed void. Ask what credential the operator holds, how often traps are checked, and what the state permits them to do with a captured rabies vector species before anything is placed.
- Time
- Two days to a week
- Best for
- Under-slab burrows and enclosed dens
Exclusion, repair and cleanup
Quoted after inspection
Metal closure at roof and eave seams, screened attic and foundation vents, buried mesh at patio and shed edges, repaired irrigation, and removal of accumulated droppings under containment. In dry air the containment part matters more than people expect, because old material breaks up rather than staying put.
- Time
- One to three days
- Best for
- Making a removal hold on a mild winter property
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.Water first: why the yard matters more than the roof.
Most wildlife advice starts at the building. In Nevada that is the second step, not the first. At roughly 6 inches of rain a year and humidity near 31 percent, the surrounding country supplies very little standing water for much of the year. A residential property with drip irrigation, a lawn, a pool or a leaking hose bib supplies it reliably, every day, on a timer. From an animal's point of view that is not a convenience, it is the reason to be there at all. This explains the pattern property managers keep seeing: the same address has a problem, gets it solved, and has it again the following year with a different animal. The entry was closed. The attraction was not. So a Nevada inspection should include the irrigation system. Chewed emitters, a bib that drips overnight, a low spot where water pools against a slab, and pet water left outdoors are all worth as much attention as a gap in the eave. Fix the water and the pressure on the building drops sharply. Fix only the building and you have bought yourself a year.
wildlife activity by season.
The most useful first step in Nevada is to note where you have seen wildlife and when they appear, because that timeline is what lets a provider focus on the right area instead of treating the whole property. In Nevada, checking the foundation, gaps around doors and windows, and any moisture or clutter near the structure usually turns up the conditions that are letting them in. Scheduling before the busy stretch, rather than after it, tends to mean faster service and a more accurate quote, and a local provider can point out the conditions that matter most in Nevada.
Brush, mulch and fallen fruit near the house give animals cover and food. Keep the edges tidy.Heat, shade, and where animals actually go.
The northern rule is that animals climb toward warmth. In southern Nevada the rule inverts for much of the year, and knowing that saves a wasted inspection. Summer highs near 100F drive attic temperatures far beyond anything an animal will tolerate for long. So the contested real estate is low and shaded: the void beneath a patio slab, a crawl space on the north side, the gap behind a block wall, a garage rafter bay that never sees sun, the shaded seam under a deep eave. That changes the evidence you should be looking for. Instead of trails through attic insulation, you are looking for a smooth packed tunnel mouth at a slab edge, prints on a block wall, staining on stucco below a shaded roof seam, and damaged ductwork. It also changes who you hire. A company that inspects Las Vegas and Henderson properties by opening the attic hatch and shining a light around is inspecting the least likely part of the building. In the cooler months the pattern shifts back toward warm cavities, which is why the same house can have activity in two entirely different places across one year.
No winter means no natural end to the problem.
In most of the country the cold does part of the work for you, either by pushing animals into a predictable window or by making them leave. Nevada offers neither. A median winter low near 31F is not severe enough to force anything out of a building or into hibernation. There is no month when the attic empties itself, and no seasonal reset that quietly ends a low grade problem. The practical effect is that time works against you here in a way it does not elsewhere. A small colony in a wall stays a colony. A skunk under a patio slab in October is still there in February, and the burrow has grown. Droppings accumulate continuously rather than in bursts, which is why long standing Nevada roosts often produce a bigger cleanup than the occupancy period would suggest. It also means the timing advice from other states does not transfer cleanly. Rather than racing an autumn deadline, you are simply choosing a month that avoids litters and bat maternity season, then closing the building for good.
What a Nevada quote should actually contain.
Two companies can look at the same Las Vegas or Reno property and produce very different numbers, and the gap is almost never in the removal fee. Start with the count. How many openings did each company find, and where are they? A quote naming one entry on a house with a shaded eave run, foundation vents and a patio slab is probably an incomplete inspection rather than a bargain. Then the materials. Desert sun destroys caulk and cheap sealant within a couple of seasons, so seams should be closed with metal and vents screened with galvanized cloth fastened into framing. If the quote does not name materials, ask. Then the water. Does the scope include repairing chewed drip line or adjusting irrigation, or is that being left for you to sort out later. Then the cleanup, measured in square feet, with a statement of how accumulated material will be contained rather than swept. With median Nevada home values near $400,000, spending a little more to get all four written down is not extravagance, it is how you avoid paying twice.
Cleanup in dry air, and why containment matters.
Cleanup after a long occupancy is handled differently in a desert climate, and it is the step homeowners are most tempted to skip. At humidity near 31 percent, droppings that have sat in a roost or a crawl void do not stay damp and compacted. They dry thoroughly and break down into fine, light material. Disturb an accumulated pile with a shovel or a shop vacuum without proper filtration and a good portion of it becomes airborne and redistributes through the building. That is why a competent Nevada cleanup looks slower and more careful than people expect: containment around the work area, filtered extraction, sealed bagging, and treatment of the surface underneath rather than just removal of the visible material. There is a second reason not to skip it. Scent marking is what tells the next animal that this site is suitable, so leaving the material behind keeps the invitation open even after the hole is sealed. Ask for the affected area to be measured and stated on the quote, and ask specifically how the material will be contained and removed from the property.
Rabies in the West, and what actually creates risk.
The disease picture out here is worth understanding plainly, because the precautions only look excessive until the moment they matter. The CDC reports roughly 4,000 animal rabies cases nationally each year, more than 90 percent of them in wildlife, and identifies the skunk variant as the dominant one across the West. Bats represent the largest single share of cases at 35 percent. What converts that background into personal risk is contact. More than one in five skunks and foxes that actually expose a person or a pet tests positive, so the moment to be careful is the moment something is cornered, handled, or investigated by a dog. The protective steps are undramatic. Keep dogs and cats vaccinated. Do not let a dog dig at a burrow mouth under a patio slab. Never pick up a wild animal, including one that appears docile or is out in daylight looking unsteady. Treat any bite or scratch as a same day medical matter. Done consistently, that is why the United States recorded only 17 human cases across 2015 through 2024.
What affects the price
- Species involved: Bats often require multi-step exclusion and may be more expensive due to permitting.
- Extent of infestation: A single animal vs. a litter or colony affects labor and materials.
- Accessibility: Roof pitch, attic headroom, and crawlspace conditions impact time and safety equipment.
- Number of entry points: More holes mean more sealing work and higher cost.
- Structural damage: Repairs to chewed wires, rotted wood, or torn ductwork add to the total.
- Geographic location: Urban areas like Las Vegas and Reno may have higher labor rates than rural parts of the state.
- Season: Spring and fall are peak seasons, and some companies may charge premium rates during high demand.
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What is the most common wildlife issue you face in your Nevada home?
When to call for help
Beyond that, call when something is denned under a slab you cannot reach, when a colony has clearly been in place for years, when the entry is at a second story eave, or when the same problem has now happened twice at the same address. Repeat calls in Nevada usually mean the water source was never addressed. A bat found indoors is the call that cannot wait, especially if someone was asleep in the room or a young child was present, because the medical decision has a deadline and the animal is far more useful contained than released. Any bite or scratch from a wild mammal is the same.
What you can do yourself
What should be handed over is anything with an animal currently in it. Sealing an opening before the occupant leaves creates a dead animal in a wall, and in a 100F summer that becomes an urgent and unpleasant problem within days. Under-slab work puts you in a confined space with an animal that cannot leave past you. Handling bats, skunks or raccoons is for people who are trained and vaccinated, not for a homeowner with gloves. There is a lot a Nevada homeowner can do, and most of it involves water rather than animals. Fixing a leaking hose bib, repairing chewed drip line, adjusting irrigation so it stops pooling against a foundation, and removing standing water all reduce the reason animals come to the property at all. Screening vents, capping a chimney and burying mesh at a patio edge are also well within reach.
Where you live matters
Older homes with wooden siding and chimneys are common entry points. The colder winters drive animals to seek shelter in attics and crawlspaces earlier than in the south. Spring is particularly active as animals emerge. Rural areas like Elko or Winnemucca face challenges from rodents and larger animals like porcupines or foxes. However, the core nuisance species remain consistent: raccoons, squirrels, opossums, and skunks. Service is available statewide. Nevada’s wildlife issues vary significantly by region. In the Las Vegas Valley, the Mojave Desert environment means fewer tree-dwelling squirrels but more ground squirrels, pack rats, and occasional coyotes. Urban sprawl pushes wildlife into neighborhoods, and attics offer cool refuge from summer heat. Homes near the Red Rock Canyon or Lake Mead may encounter desert bighorn sheep (rarely a nuisance) or rattlesnakes. In northern Nevada, including Reno and Carson City, the Sierra Nevada foothills bring more raccoons, tree squirrels, and bats.
Simple ways to keep wildlife away
- Repair leaking hose bibs and chewed drip line promptly, since water is the first thing that draws animals in.
- Adjust irrigation so nothing pools against a foundation or slab edge overnight.
- Bury an L shaped mesh apron at patio slabs, shed footings and any raised deck.
- Screen attic, eave and foundation vents with quarter inch galvanized cloth fixed into framing.
- Close roof and eave seams with metal rather than caulk, which fails quickly under desert sun.
- Keep pet food and water dishes indoors overnight, especially in summer.
- Cut back trees and shrubs that bridge onto a roof or over a block wall.
- Check shaded garage rafter bays once a year for staining or pellet piles.
- Keep rabies vaccinations current for dogs and cats that use the yard.
Ask which animal it is, how babies will be handled, and whether sealing and cleanup are included.Did you know?
Opossums are largely immune to most snake venom and eat thousands of ticks per season, making them a natural pest control ally—but not in your attic.
Squirrels plant thousands of trees a year by forgetting where they bury nuts, but they also cause 10–15% of house fires by chewing electrical wires.
A single bat can eat up to 1,000 mosquitoes in an hour, but a colony in your attic can produce over a gallon of guano per week.
Questions people ask
What is the best way to get a raccoon out of my attic?
The best method is humane trapping combined with exclusion. A professional sets traps baited with marshmallows or cat food near the entry point. Once captured, the raccoon is relocated per NDOW guidelines. After removal, all entry points are sealed to prevent re-entry. Never seal an animal inside—it will try to chew its way out.
Are bats protected in Nevada?
Yes, bats are protected under Nevada law. They cannot be killed or removed without a permit. Professional exclusion using one-way doors is the legal approach, and it must be done outside of pupping season (typically May–August) unless a maternity colony is present.
How much does wildlife control cost in Nevada?
Removal for a single animal typically ranges from $250 to $600. Exclusion sealing costs $400–$1,500, and full attic restoration can run $1,000–$2,500.
Can I just use a live trap myself?
You can, but it's often ineffective and risky. Without sealing entry points, other animals will move in. Additionally, trapping certain species (like bats) is illegal without a permit. Professional help ensures legal compliance and long-term results.
What are the health risks of wildlife in the attic?
Raccoon roundworm (Baylisascaris) can be fatal if ingested. Bat guano can cause histoplasmosis, a lung infection. Skunk spray is irritating, and all wildlife can carry fleas, ticks, and mites that spread diseases like Lyme disease or rabies.
How do I prevent squirrels from getting into my attic?
Trim tree branches at least 6 feet from the roof, install gutter guards, and seal all gaps around vents, soffits, and eaves with hardware cloth. Squirrels can squeeze through holes as small as 1.5 inches, so thorough sealing is key.
Sources (16)
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