The short version
Around Pasadena, the most common animals are raccoons, squirrels and opossums. Identify yours first. Then get it out and seal the gap.
- Never handle a wild animal.
- Figure out which animal it is first.
- Check for babies before sealing.
- Use metal mesh, not foam.
- Secure trash and pet food.
Anyone in Pasadena dealing with wild animals around the house.
What to look for
Around Pasadena, the usual animals are raccoons, squirrels, opossums, skunks and bats. Each one gets in differently and needs a different fix. Babies are usually born from about February through May.
- 1Scratching or thumping in the attic.
- 2Torn vents, soffits or shingles.
- 3A musky or skunky smell.
- 4Dug holes under decks or sheds.
- 5Trash bins knocked over.
- 6Droppings on decks or in the attic.
Why it’s worth acting soon
- Chewed wires and damaged insulation.
- Droppings that can spread disease.
- Babies make removal harder.
- Rabies risk from bites.
Treatment options and typical costs
Inspection and Species Identification
$100–$300
The inspection is the cheapest step, and it prevents mistakes. Ask for entry-point photos and a written, ordered plan.
- Time
- 60–120 minutes
- Best for
- Every job; the species decides the method
Humane Live Trapping and Removal
$150–$500 per animal, plus trip fees
For a skunk under a porch in Pasadena, providers use covered traps and slow, quiet handling to keep the animal calm. Skunks spray when startled, so technique beats speed.
- Time
- Several days to two weeks
- Best for
- Animals already inside or denning under structures
Attic Cleanup, Sanitation, and Follow-Up
$500–$3,000+ depending on insulation removed
A follow-up visit a few weeks after exclusion is standard practice in Pasadena. Each sealed spot is checked for new damage.
- Time
- 1–2 days
- Best for
- Soiled insulation, droppings, odors, and re-checks
One-Way Doors and Eviction
$200–$600
A one-way door is a hinged or funnel-style exit fitted over the animal's main entry hole in Pasadena. The animal leaves and can't get back in. Then the gap is repaired.
- Time
- 3–7 days
- Best for
- Squirrels, raccoons, and birds using a single main entry
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.Animals around Pasadena.
Around Pasadena, the most common animals are raccoons, squirrels, opossums, skunks and bats. Homes from Pasadena out to Glendale and Los Angeles see much the same mix.
Local wildlife conditions in Pasadena.
The area is mostly residential, so wildlife pressure can differ from one block to the next depending on how tight the entry points are and how much food, water, or shelter is close by. An inspection in Pasadena usually starts outside and works inward, checking the foundation, gaps around doors and windows, and any moisture or clutter near the structure first. Knowing Pasadena's seasonal timing lets you schedule treatment before the busy stretch rather than after it, which usually means faster service and a more accurate quote. A provider who works Pasadena and California every day can point out the specific conditions that matter most here, and getting the scope, price, and follow-up terms in writing makes it easier to compare options. Pasadena sits in a local climate, and that sets the pace for wildlife activity here: the warmer months.
Brush, mulch and fallen fruit near the house give animals cover and food. Keep the edges tidy.What’s that noise?
- Quick scurrying at dawn and dusk: squirrels. - A strong smell under the deck: skunks. - Rustling at dusk at the roof edge: bats. - Heavy thumps at night: raccoons.
Baby season.
Mothers look for warm, dry spots like attics and chimneys. Never seal a hole while babies are still inside. Bat exclusion waits until pups can fly, usually by mid-August. Around Pasadena, most babies are born from about February through May.
A year of wildlife in Pasadena.
- Spring: babies are born from about February through May. Don't seal while young are inside. - Winter: mild in Pasadena, so animals stay active. - Fall: animals hunt for winter dens. Seal gaps now. - Summer: highs near 88°F in Pasadena. Animals roam at night.
Raccoons.
They tear open vents and roof edges. Heavy thumps at night usually mean a raccoon. Never handle one.
Tree squirrels.
Squirrels are busy at dawn and dusk. They chew small gaps into bigger holes, and wires too.
Opossums.
Opossums are quiet, slow and mostly harmless. They move into crawl spaces and under decks.
Skunks.
Skunks den under decks, sheds and porches. A strong smell after dark is the giveaway.
Bats.
Bats slip through gaps as small as a thumb. Look for droppings under a gap at the roofline.
Getting them out the right way.
- Identify: figure out which animal it is. - Recheck: make sure nothing is trying to get back in. - Seal: heavy metal mesh on every gap. - Door: a one-way door lets the animal leave. - Check: look for babies first.
Where animals get in.
- Roof vents and soffit corners. - Under decks, porches and sheds. - Crawl-space doors and foundation vents. - Uncapped chimneys. - Gaps where the roof meets the wall.
If an animal gets inside the house.
Is it a bat, and was someone asleep there? Keep kids and pets away. Open an outside door or window in that room, then leave. Close interior doors so it stays in one room. Call your health department first.
Droppings and cleanup.
- Don’t sweep or vacuum droppings dry. - Large attic messes are a job for pros. - Wet droppings down, then bag them. - Wear gloves, a mask and old clothes.
Keeping your yard less inviting.
- Trash: locking lids, or keep bins in the garage. - Cover: clear brush and wood piles near the house. - Fruit: pick up what falls. - Birds: use a seed tray, and sweep up spills. - Pets: feed them indoors.
Wildlife myths.
- Out in daylight means rabid: not always; mothers forage by day. - Lights and radios work: only briefly. - Mothballs drive them out: they don’t, and they’re a health hazard. - Moving them is kind: often illegal, and babies get left.
Birds in vents and chimneys.
Wait until the young have flown. Most native birds are protected while nesting. Starlings and sparrows love dryer and bath vents. Then fit a vent cover that still lets air out.
If an animal seems sick.
animal control or your local health department. Keep people and pets inside. Staggering, circling or acting unafraid can mean illness. Don't try to trap or touch it.
Pets and wildlife.
Bring pets in at night. Keep pets' rabies shots up to date. your vet if your pet tangles with a wild animal.
What a wildlife visit looks like.
Later, they come back and seal up. They set a one-way door or trap. They look for tracks, droppings and torn vents. The tech walks the roofline and the foundation. Cleanup comes last.
If a skunk sprays.
- People and pets: wash with peroxide, baking soda and dish soap. - Under the house: air it out; the smell fades over days. - Clothes: wash with baking soda added to the load. - Eyes: keep the mix out; rinse with cool water. - Tomato juice: it doesn’t really work.
Babies found alone.
Hurt or clearly orphaned? Leave them be and watch from a distance for a day. Baby animals alone are often just waiting for a parent. Call a wildlife rehabilitator.
Fencing that works.
- Diggers: bury wire mesh a foot down, bent outward. - Gates: keep gaps underneath to a couple of inches. - Gardens: hardware cloth beats chicken wire. - Climbers: an electric wire near the top stops raccoons.
Questions to ask before you sign.
- Which animal is it? - Is cleanup included? - What will you seal with? - What happens to the animal? - How will you handle babies? - Where is it getting in?
What affects the price
- Trip fees for daily trap checks over multiple days.
- Warranty length on exclusion work and sealed points.
- Square feet of insulation removed and replaced.
- Damage to ductwork, wiring, or vents needing repair.
- Whether young are present and need hand removal.
- Presence of a raccoon latrine requiring special cleanup.
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What worries you most about wildlife?
When to call for help
right away if one acts sick or aggressive. Babies and droppings need careful handling. Call if an animal is in the attic, walls or chimney.
What you can do yourself
Getting an animal out of the house is a pro's job. Never corner or handle one. Secure trash, bring in pet food and trim branches.
Wildlife in Pasadena
A local provider who knows Pasadena and California can point out the specific conditions that matter most here before you commit to a plan. Across Pasadena, take a minute to note where you have seen activity and when it appears, so the inspection is faster and the quote more accurate. Across Pasadena, most of the housing is residential, so the usual entry points, moisture spots, and sheltered areas near the structure are what an inspection checks first. Pasadena has a local climate, and wildlife activity here tends to pick up the warmer months. Across Pasadena, animals live comfortably in town, using alleys, storm drains and older buildings. In California, skunks and bats carry most rabies. Mild winters in Pasadena, with lows near 46°F, keep animals active all year.
Local research
Wildlife in Pasadena, CA: what the public record shows
Before you compare quotes, it helps to know which wildlife actually live in California, when they are busiest around Pasadena, and what the state figures look like. Everything below links to the agency or university page it came from.
Raccoon relocation
Furbearer seasons set by CDFW.
UC IPMTrapping for hire
Applies to commercial wildlife trapping generally.
UC IPMNuisance Wildlife species recorded in California
- Raccoon (Procyon lotor) — Top terrestrial rabies vector in the East; relocation banned in most states.
- Striped skunk (Mephitis mephitis) — Primary rabies reservoir in Texas and the central U.S.; Illinois requires euthanasia of trapped striped skunks.
Rules that apply in California
For context, nationally
- Around 4,000; more than 90% in wildlife — Animal rabies cases reported per year. CDC
- More than 20% each — Skunks and foxes that expose people or pets and are rabid. CDC
Sources: UC IPM; Rabies in the United States: Protecting Public Health; Class A (commercial) Nuisance Wildlife Control Permit study packet (17 Ill. Adm. Code 525). Figures are quoted as the source prints them. How we check our sources
Simple ways to keep wildlife away
- Use locking or strapped trash lids.
- Bring pet food in at night.
- Cap the chimney.
- Trim branches back from the roof.
- Bury wire mesh around decks and sheds.
- Pick up fallen fruit and spilled bird seed.
Ask which animal it is, how babies will be handled, and whether sealing and cleanup are included.Did you know?
Opossums play dead involuntarily; the response is a fainting reflex
Groundhogs whistle to warn each other, earning the name whistle-pig
Questions people ask
Does homeowners insurance cover wildlife damage?
Ask your insurer. Gradual chewing often isn't covered. Sometimes, for sudden damage.
Can the animal just be relocated?
Ask your provider. Many states, California included in some cases, limit moving trapped animals. Often not.
How do I get rid of a groundhog?
Groundhogs are rare here. A digger under the shed is likely a skunk.
What season is worst for wildlife problems?
Spring babies and fall den-hunting are busiest. Mild winters in Pasadena keep animals active year-round.
Is wildlife removal humane?
It can be. One-way doors let animals leave on their own.
Which animals are most common around Pasadena?
Mostly raccoons, squirrels, opossums, skunks and bats.
When are wild animal babies born in Pasadena?
Usually from about February through May. Don't seal a hole while babies are inside.
Sources (4)
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