little brown bat

Our Service

Professional Bat Removal
in Milwaukee, WI

Advanced Wildlife and Pest Control specializes in humane bat removal and exclusion services in Milwaukee and southeastern Wisconsin. 

There are eight species of bats that are federally protected in Wisconsin and require specific regulations concerning bat control. To avoid violating any laws, call our certified professionals for help when dealing with nuisance bats in your home or office.

Why Should You Remove Bats?

While bats are beneficial creatures, they pose home and health risks when they venture indoors.

Risk of Rabies

Bats are one of the most common carriers of rabies. Rabies can result from bites, scratches, and even holding bats. Although bat bites are rare, it’s better to be safe than sorry. Bats will only bite when they feel threatened.

Risk of Histoplasmosis

Histoplasmosis is a lung infection resulting from inhaling a fungus in dried bat guano. If droppings dry up and become airborne, it can be detrimental to your health. Symptoms include fever, cough, fatigue, chest pain, and body aches.

Structural Damage to Your Home

Bat droppings can cause significant structural damage to your house. Large accumulations of bat guano can stain ceilings, walls, and floors.

Unpleasant Odors

Over time, the smell of bat guano can become quite unpleasant.


Bats also host parasites like fleas, ticks, and mites.


Bat infestations can also cause allergic reactions in some individuals, including asthma and congestion.
technician inspecting house for entry points for bats

Step 1: Bat Inspection

A Complete Home Inspection

A certified professional will perform a detailed home inspection of the whole structure to determine exactly how the bats are getting in and out of the building. Bats can squeeze through holes the size of a quarter. Roof vents, gables, ridge caps, fascia, chimneys, and windows are common points of entry for bats.

Common Signs of Bat Activity

  • Bat Guano
  • Strong Scent of Ammonia
  • Rub Marks
  • Squeaking / Chirping Sounds
  • Bat Guano
  • Strong Scent of Ammonia
  • Squeaking / Chirping Sounds
  • Rub Marks
technician inspecting house for entry points for bats
bat exclusion service
bat exclusion service

Step 2: Bat Removal & Exclusion

Let's Bat Proof Your Home!

The most effective and humane way to remove bats is by utilizing a bat valve along with a home exclusion. A bat valve is a one-way door that allows bats to exit your home but prevents re-entry.

Once bat valves are installed, our bat specialists will seal up all other entry points, allowing bats to only exit through the valves. The removal process typically takes 4-8 days. We will perform a final inspection before removing the valves. After removing the valves, the last entry points will be sealed, leaving your home bat-free!

Bat Maternity Season

Bat exclusions are prohibited June 1 – August 15 to protect Wisconsin’s little brown and big brown bats during maternity season. Exclusions occurring during this period will separate mothers from their flightless pups, leaving the pups to die of starvation and potentially worsening the homeowners’ bat problem.

Exclusions may be completed if there is a severe health or safety risk to humans, especially in homes with toddlers, elderly individuals, or disabled individuals that can not properly communicate an interaction with a bat. You must submit a health exemption form to the DNR to get approved for a bat exclusion during the maternity season. Call us at 262-242-4390 for more details.

Bat Exclusion Guarantee

Advanced Wildlife and Pest Control prides itself on providing high-quality workmanship and industry-leading expertise to satisfy customers. Our numerous customer reviews posted by happy customers confirm this statement. For 30 years, we have been solving pest problems for thousands of homeowners and businesses throughout the Milwaukee area. We provide a two-year guarantee on our work for bat exclusions performed on your home or office.
attic restoration and bat guano removal service

Step 3: Restoration & Sanitation

Clean Up Messes Left Behind

Bat colonies contaminate attics and houses with guano, urine, parasites, and other harmful substances. These contaminated materials are a serious health hazard and should be removed immediately!

We offer comprehensive restoration services to safely remove and sanitize any contaminated materials left behind from bat infestations. In larger infestations, an entire attic re-insulation may be required.


Cleaning and removing bat guano is a very detailed and essential process. Bat droppings contaminate attic insulation and your home’s air filtration. Our professionals use full hazmat gear and respirators to safely remove bat guano. They will then treat problem areas with a special commercial-grade decontaminating agent to sanitize, eliminate musty odors, and break down smaller organic waste.

Attic Insulation Services

If you have a large bat infestation, an entire attic re-insulation may be required to remove the large amounts of hazardous waste left behind from the bat colony. Our professionals use a high-power vacuum to suck out and dispose of the contaminated debris. A special commercial-grade decontaminating agent will be used to sanitize and break down organic waste.

Your attic is clean, but we are not finished yet. Your attic needs to be re-insulated to the proper R-Value. An R-Value is a measure of insulation’s ability to resist heat flow. The higher the R-Value, the better the thermal performance of insulation.

The recommended R-Value for the state of Wisconsin is R-49, and this meets all local city codes. We use Owns Corning Pink Fiberglass Blown-In insulation which we feel is the best product currently on the market. Before installing the insulation, our technicians will inspect your home for proper air ventilation to prevent any harmful mold and mildew buildups in the attic. The insulation is then blown into the attic using an Attic Cat Machine with a hose system that efficiently installs the new insulation. The cleanout process usually takes a full day to complete.

NOTE: Sometimes, your insurance company may pay for your attic insulation to be removed and cleanout. Please ask our technician for further details. Due note this only applies to attics contaminated by raccoons and bats.

attic restoration and bat guano removal service

Get in Touch!

Do you have bats in your house? We are here to help! Fill out the form below. For immediate service, please call us at (262) 242-4390.

    Company Logo
    Phone: (262) 242-4390


    Address: 850 Enterprise Drive, Slinger, WI 53086

    Mon. – Fri. ………. 7 am – 7 pm
    Sat. – Sun. ………. 8 am – 3 pm
    24/7 Emergency Services Available