Humane Bat Proofing

Bat Colonies Removed Alive, without Harming Them

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Seal Bats Out and Keep Them from Returning

Bats are the top rabies carrier in Illinois, so removing a bat colony should only be attempted by a Certified Bat Exclusion Contractor. Bats are a protected species, so they must be removed without harm. There is no safe do-it-yourself solution for bats.

Landmark Pest Management is a Certified Bat Exclusion Contractor. Our expert team uses the signs that bats leave behind to pinpoint the holes through which bats are entering. Rub marks left by bats’ greasy fur and deposits of guano provide the clues that reveal where bats are coming and going.

After an inspection to locate the entry points, we install humane devices that allow bats to leave, but not reenter, so that you can enjoy a bat-free building. We use one-way doors called excluders that allow bats to exit, but not return. This is the most humane and best way to solve a bat problem. Once the bats are gone, their entry holes are sealed by our experts using bat-proof materials.

Ready to Reach out?

Our experts are here to listen, understand your problem, and get you the help you need. Let’s talk.

“There’s a Bat in My House!”

Bats are Illinois’ top rabies carrier and can enter through a gap the size of a dime. If a bat bites a person, or is discovered in a room with a sleeping or unconscious person, or a small child, it should be captured and sent for rabies testing. Then, an inspection should be performed to make sure there isn’t a bat colony elsewhere in the home.

Landmark Pest Management’s urban wildlife managers are certified in bat colony remediation and the humane control of bats. Our preferred green method for removing a bat colony involves the installation of one-way doors called excluders that allow the bats to leave, but not return. Once the bats are out, gaps are sealed and structural deficiencies are corrected to prevent bats from returning.

Watch this video to see Landmark’s team remove a bat colony.

Seal Bats Out of Homes, Condos, and Apartments

Bats can squeeze into homes through the tiny gaps under flashing, through ridge vents, peak vents, or dormers.

They also sometimes get into a home through an open door or window. When a bat is discovered in a home, it can be a sign that a bat colony has established itself in the attic or other inaccessible void space, so an inspection must be performed to identify the extent of the bat problem. Even when bats are entering through a hard to access or high up area, we find them and seal them out.

Large Commercial Bat Control Projects are Our Specialty

Landmark serves over 10,000 homes each year, but we also specialize in large, complex, and difficult to solve bat colony remediation. We remove bats from hotels, condos, churches, and large commercial facilities.

Bat Guano Contaminated Insulation Reduces Energy Efficiency

Bats living within walls and attics contaminate insulation with bat guano which can transmit diseases, such as Histoplasmosis. As droppings accumulate, they ruin the insulation’s energy efficiency which results in wasted money from higher heating and cooling bills. After our team safely removes the insulation contaminated by the guano, we install clean, new insulation that makes your building safer and more energy efficient.

Helping Homeowners Remove Bats and Bat Proof Homes Since 1976

Humane and Efficient Bat Removal and Bat Colony Remediation

When there’s a bat in your house, anything can happen. The most important step in the bat removal process is bat proofing. Installing one-way doors called excluders, and sealing only the holes through which bats are entering, is not sufficient to solve a bat colony issue. Unless all other possible access points are identified and sealed, the bats will continue to access the building through other gaps large enough for them to enter.

Our comprehensive bat proofing services identify and seal entry points that include:

  • Gaps under the eaves, ridge vents, and peak vents on the roof
  • Flashing and gaps around chimneys that allow bats access
  • Cracks in masonry
  • Gaps in wood caused by settling and shifting
  • Chimneys that lack chimney caps
  • Peak vents and dormers with holes and gaps

Bats have their place in nature, not in your house.


Landmark’s Certified Experts Bat Proof Your Home

When bats invade your home, we make bat proofing your home simple.

Our courteous expert technicians will come to your home and solve any wildlife problem that is causing damage to your property or threatening the health and safety of your pets and family.

Knowledgeable Staff

Every one of our state-certified wildlife technicians undergo extensive training before receiving their certification in humane wildlife control from the Illinois Department of Natural Resources. We hold additional certification as Certified Bat Exclusion Contractors.

Scientific Techniques

We pride ourselves on using the latest science to get the job done quickly and keep you and your family safe.

Comprehensive Service

Your bat problem doesn’t end when the bats exit through the one-way door. Structural damage, waste, and hidden entrances can keep them coming back. We work with you until the problem is fully solved by removing the contamination, repairing the damage that they leave behind, and sealing the entry points.

Why Do I Have a Bat in My House?

In nature, bats make their homes in the cavities of hollow trees and in caves. An attic, wall void, or cladding around a chimney provide bats with an excellent substitute for their natural home, because it provides warmth and protection where they can raise their young. Oftentimes bats will establish themselves in a home for several generations so the bats that are currently living in your home may be the result of a long-established colony. This is why intervention by a certified bat exclusion expert is necessary to completely solve a bat problem.

Bats are found throughout Illinois, but most often we help manage bats from towns with bodies of water, forests, and healthy ecosystems that support the insects upon which bats feed including Glencoe, Winnetka, Barrington, Wheaton, Glen Ellyn, Lake Forest, Riverwoods, Lincolnshire, Libertyville, Hinsdale, and Naperville.

Homes built with gaps or openings are particularly vulnerable, so the construction standards by which a home has been built indicate whether or not a home is susceptible to bat intrusion. As older homes settle, openings can form that allow bats to get inside.

They’re looking for shelter. They’re looking for warmth. They’re looking at your home, no matter where you live. We’ll remove the bats and get your life back to normal.

Knowledgeable Staff

Every one of Landmark’s state-certified wildlife technicians undergo extensive training before receiving their certification in humane wildlife control. Our courteous technicians will come to your home and solve any wildlife problem that is causing damage to your property or threatening the health and safety of your family and pets. You can rest easy knowing that Landmark’s certified technicians have the training and expertise to be the best.

Bats and Rabies

Of the 255 animals that have tested positive for rabies in Illinois in the four years between 2012 and 2015, 100 percent of them have been bats. Bats have replaced skunks, raccoons, coyotes and foxes as Illinois’ number one rabies carrier.

Research indicates that wild bat populations living in caves have a low occurrence of rabies, with 1 out of 1000 (0.1%) being infected. Bats that are found behaving abnormally, such as entering human-occupied spaces, fluttering around on the ground, or initiating contact with people, have a much higher incidence of rabies, with up to 5 percent being infected.

Landmark coordinates with all relevant public health agencies to test any bats for rabies, when the risk of human exposure is present, to ensure your safety.

Want To Get Rid of Your Bat Problem? Contact the Experts

Don’t let bats ruin your home, risk your health, and destroy your peace of mind. Contact Landmark to get the job done right.


Protect your property and your health from any wildlife or pests. Our experts are trained to give you peace of mind.