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Bat Removal: Humane Exclusion That Follows the Law

Squeaking in the walls at dusk, dark stains by a roof gap, or a bat flying around the living room. Call Bastion Pest Pros 24/7 and we’ll connect you with a local bat-exclusion specialist who works within your state’s bat rules. The pro excludes bats so they leave on their own, seals the roost, and handles guano cleanup safely.

Bats need different rules from other animals. For raccoons, squirrels and the general process, see wildlife removal.

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  • Free to call
  • Local wildlife pros
  • Don’t kill bats.Many species are protected, and lethal permits are rare. Some species are federally endangered.
  • Exclusion, not trappingOne-way devices let bats fly out and keep them from coming back.
  • Timing is regulatedMany states restrict exclusion during the summer maternity season, and the dates differ by state.

Bat Removal at a Glance

Bats are handled differently from every other attic animal. These points apply to almost every bat job.

  • Don’t kill bats.Many species are protected, and lethal permits are rare. Some species are federally endangered.
  • Exclusion, not trappingOne-way devices let bats fly out and keep them from coming back.
  • Timing is regulatedMany states restrict exclusion during the summer maternity season, and the dates differ by state.
  • Health firstAnyone who may have had contact with a bat should contact a doctor or the health department.

Bat in the House Right Now? Do This First

A single bat indoors is a different situation from a colony in the attic. Here’s what to do while you wait for help.

  1. Don’t touch it bare-handed.

    Bat teeth are tiny and bite marks can be hard to see, the CDC notes.

  2. Don’t release it yet

    if anyone may have had contact. The CDC says to talk with a public health expert first so the bat can be tested.

  3. Close the room

    and keep kids and pets out.

  4. Call your health department or animal control

    for capture and testing advice.

  5. If no one had contact,

    open a window or outside door, turn off the lights in that room and leave.

  6. Call (844) 442-2144

    to have a local wildlife pro find how it got in.

Rabies and Bats: When to Call a Doctor

The CDC says bats are the most commonly reported rabid animals in the U.S., though most bats don’t carry rabies. It also says care given after an exposure, before symptoms start, is nearly 100% effective.

SituationWhat to do
Bitten or scratched by a batSee a doctor right away; discuss potential rabies exposure
Bat saliva in the eyes, nose, mouth or a woundSee a healthcare provider urgently
You wake up and find a bat in the roomContact a doctor or the health department; this may count as an exposure even with no visible bite
A bat is found in a room with a sleeping child, or with someone who can’t say whether they were touchedContact a doctor or the health department
A pet was near a batCall your vet and keep the bat for testing if it was captured safely
Bat seen in the attic, no contactNo medical step needed; call a pro about exclusion

Don’t wait for symptoms. The CDC says rabies is nearly always fatal once signs appear.

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Signs of Bats in the Attic or Walls

A bat colony often goes unnoticed for months. These signs point to bats instead of squirrels or mice.

SignWhat it usually means
Squeaking or rustling in walls at duskBats waking up and leaving to feed
Bats seen flying out of a roof gap at sunsetAn active roost
Small, dark droppings piled below one spotGuano under the roost
Droppings stuck to siding or windows below a gapAn exit point above
Brown or greasy stains around a small openingRub marks from bats squeezing through
Ammonia smell in the atticBuilt-up guano and urine

Bat droppings crumble into dust when crushed; mouse droppings stay hard. Don’t test that with bare hands.

Bats Are Protected in Many States

Bats eat large numbers of night-flying insects, and several species have declined sharply. That’s why many states protect them.

  • Federal protection

    The U.S. Fish and Wildlife Service reclassified the northern long-eared bat as endangered, effective January 2023. Its range covers 37 states.

  • White-nose syndrome

    The same agency says this disease has caused estimated declines of 97–100% in affected northern long-eared bat populations.

  • State rules

    Many states protect all bats and limit how and when they can be removed. Lethal permits are rare, according to North Carolina’s wildlife commission.

  • What that means at home

    Exclusion is the accepted approach. Poisons and killing are off the table.

Bat Maternity Season: Why Exclusion Has to Wait

In summer, female bats gather in maternity colonies to raise pups that can’t fly yet. Excluding adults then traps the pups inside, where they starve.

State exampleExclusion restricted
WisconsinJune 1 – August 15 (prohibited)
New JerseyMay, June and July
North CarolinaMay 1 – July 31 for licensed agents
FloridaApril 16 – August 14 (illegal to evict or exclude); exclusion allowed August 15 – April 15
Your stateVaries; check your state wildlife agency
JanFebMarAprMayJunJulAugSepOctNovDec
Dates vary by state.

These are examples, not a national rule. Florida also requires exclusion devices to stay up at least four nights, per the state wildlife commission (FWC).

Wildlife rules vary by state; the specialist should follow your state’s rules and hold any permits it requires. Ask for your state’s dates and schedule the work around them.

What Happens During Maternity Season

If you call in summer, the pro doesn’t just say “wait.” There’s still work that can be done.

  • Inspection

    finding the roost, the exit points and the colony size

  • Sealing non-active gaps

    closing openings bats aren’t using, where allowed

  • Living-space protection

    sealing gaps between the attic and rooms so bats can’t get inside the house

  • Scheduling

    booking the exclusion for the first legal date

  • Health check

    advice on anyone who had contact

Ask the pro to confirm in writing which work is allowed before exclusion opens.

How Bat Exclusion Works

Exclusion lets every bat leave on its own and then closes the door behind them. North Carolina’s wildlife commission describes the same basic method.

  1. Watch at dusk

    to see exactly where bats exit.

  2. Seal all other gaps

    with caulk, mesh or similar materials.

  3. Install one-way devices

    on the active exits: tubes, netting or cones bats can leave through but not re-enter.

  4. Leave them up for several nights

    so every bat has time to leave.

  5. Remove the devices and seal

    the last openings.

  6. Check for activity

    at dusk to confirm the roost is empty.

Bats can squeeze through very small gaps, so the inspection has to be thorough.

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Where Bats Get Into Homes

Bats don’t chew. They use gaps that already exist, often along the roof.

SpotWhy bats use it
Gaps at the roof ridge and ridge ventsWarm, high and hidden
Behind fascia boards and soffitsSmall gaps where boards meet
Gable ventsTorn or loose screens
Around the chimneyFlashing gaps
Behind shutters and sidingNarrow, sheltered spaces
Loose window and door trimSmall gaps into wall voids

Bat Guano Cleanup

A long-used roost can leave piles of guano on top of insulation and drywall. The CDC notes the fungus that causes histoplasmosis spreads in bird and bat droppings mixed into soil, and people get it by breathing in spores.

Cleanup stepWhy it matters
Bats excluded firstCleaning while bats are present doesn’t last
Protective gear and respiratorsKeeps dust and spores out of lungs
Soiled insulation bagged and removedGuano and urine soak into it
Area sanitized and deodorizedRemoves odor that can attract bats back
Damaged drywall or wood repairedUrine can stain and rot materials
New insulation installedRestores energy efficiency

Don’t sweep or vacuum guano with a household vacuum. That puts dust in the air.

How Much Does Bat Removal Cost?

Bat jobs range widely because sealing can cover the whole roofline and guano cleanup varies so much. These are typical U.S. ranges from Angi’s 2026 data, not Bastion quotes.

Bat removal and exclusion$230–$700
Bat droppings cleanup$600–$8,500
Insulation replacement$1,100–$2,700
$0$2,500$5,000$7,500$10,000

Source: Angi wildlife removal cost guide, 2026.

Show as a table
ServiceTypical cost
Bat removal and exclusion$230–$700
Bat droppings cleanup$600–$8,500
Insulation replacement$1,100–$2,700
What moves a bat quote
Colony size and how long it’s been there
Number of gaps
Roof height and access
Season

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Questions to Ask Before Bat Work Starts

Bat exclusion is regulated and easy to get wrong. These questions show whether the provider knows the rules where you live.

  • 1

    Which state permits or licenses apply to bat work here, and do you hold them?

    Some states require a specific wildlife permit; Florida’s FWC does not license nuisance wildlife trappers generally.

  • 2

    What are the maternity season dates here?

    The answer should be specific to your state.

  • 3

    Where are the active exits, and how many gaps will you seal?

    Ask to see them marked on photos.

  • 4

    What one-way devices will you use, and how long will they stay up?

  • 5

    How will you confirm every bat is out

    before the last gap is sealed?

  • 6

    Is guano cleanup included, or quoted separately?

  • 7

    What does the warranty cover

    if bats find a new gap?

A provider who suggests poison, sealing bats in or summer exclusion where it’s restricted is a red flag.

A Bat in the House vs a Colony in the Attic

These two calls sound alike but play out differently. Knowing which one you have helps the pro plan the visit.

 A single bat indoorsA colony in the attic or walls
Usual causeA young bat that wandered in, or a gap into the living spaceA roost used season after season
First stepHealth check for anyone who may have had contactDusk watch to find the exits
Season limitsUsually none for a lone batMaternity season rules often apply
Main workFinding and sealing the gap it usedFull exclusion and sealing
CleanupUsually noneOften guano and insulation

One bat indoors can be a sign of a colony nearby. Ask the pro to check the attic too.

Bats vs Other Attic Animals

Bats need their own approach. Here’s how they differ from other common attic animals.

 BatsSquirrelsRaccoons
Chew entry holesNoYesTear and pry
Trapping usedNoSometimesSometimes
Legal protectionOften protected; some endangeredGame animal in many statesFur-bearer in most states
Exclusion season limitsYes, maternity season in many statesPlan around babiesPlan around kits
Main health concernRabies, guano dustWiring damageRoundworm, rabies

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Myths About Bats

Bats have a scary reputation. Here’s what’s true.

  • MythMost bats have rabies
    FactMost don’t, but any contact still needs a medical check
  • MythBats attack people
    FactBats avoid people; contact usually happens when one is handled or trapped indoors
  • MythMothballs drive bats out
    FactThey don’t reliably work and aren’t safe to breathe in a home
  • MythYou can seal them in and they’ll die off
    FactThat’s illegal in many places and leaves dead bats and pups in the walls
  • MythA bite always leaves an obvious mark
    FactBat teeth are tiny, and marks can be hard to see

Preventing Bats From Returning

Once the roost is sealed, a few habits keep bats from finding a new way in.

  • Keep window screens in good repair
  • Use chimney caps and keep dampers closed
  • Have rooflines checked after storms or roof work
  • Seal gaps around pipes, wires and vents with caulk or mesh
  • Put up a bat house well away from the home if you want bats nearby

Bat Removal by state

Local guides with state rules, seasonal timing and licensed providers near you.

Bat Removal FAQs

Can bat removal be done in the summer?

Often not. Many states restrict exclusion during maternity season, and the dates vary by state. The pro can still inspect and plan.

Can I just kill the bats?

No. Many species are protected, some are federally endangered, and killing bats is generally illegal or requires a rare permit.

I woke up with a bat in my room. What should I do?

Contact a doctor or your health department. The CDC treats waking up with a bat in the room as a possible exposure, even without a visible bite.

Should I let the bat go?

Not if anyone may have had contact. The CDC says to talk with a public health expert first so the bat can be tested.

How long does bat exclusion take?

Devices stay up for several nights, then the gaps are sealed. Some states set a minimum; Florida requires at least four nights.

Is bat guano dangerous?

It can be. Disturbed droppings can release fungal spores, so cleanup is best done by a pro with respirators and protective gear.

Do bats come back after exclusion?

They try to return to old roosts, so sealing every gap matters. Ask what the provider’s warranty covers.

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  • What you’re seeing and where
  • How long it’s been going on

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Keep pests out. Get help fast.

Bats in the Attic or Walls?

Every season a colony stays, the guano builds and the cleanup grows. Call now and get a local wildlife pro on it.

Call now (844) 442-2144
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