Any number of unwelcome flying and crawling critters may seek access to your garage or warehouse through the warehouse or garage door. It may open and close many times a day, or else you’re also having to leave it open for extended periods to move goods and allow traffic to come and go. Either way, it’s an open invitation to a variety of creatures to come in and make themselves at home. You don’t want to ignore the presence of insects, rodents and birds, because they can create not only an unsanitary situation, but also can damage your goods or equipment.

Here are a few to watch out for and how best to deal with them.


Rodents usually seek entrance to the indoors when it turns cold outside. Not only are they looking for warmth, but they’ll also be exploring for any food you might have on hand. Rodents can do a tremendous amount of damage by gnawing rubber and wiring, and making nests in insulation. Further, they breed rapidly and your facility can be overwhelmed with an infestation in no time. Seek professional help from an exterminator if you see rodent droppings or the presence of the animals themselves. Otherwise, seal holes and gaps around garage or warehouse doors.

Squirrels, another type of rodent, may also gain entrance to your facility and can cause damage to wooden roofs.


Widely perceived as evidence of unsanitary conditions, cockroaches also can quickly reach infestation levels, and are of concern because they can harbor bacteria such as E. coli and Salmonella. Certainly they can enter through garage or warehouse doors, but they also gain entrance in boxes and shipping containers, and through gaps and cracks in walls and entrances. Again, the services of a professional pest control company are called for should you notice droppings or the insects themselves. DIY remedies seldom work. Just the presence of a couple of cockroaches may indicate there’s a larger infestation present.

Flies, Gnats and other Flying Insects

While flying insects generally don’t live long enough to cause an infestation indoors, they can be irritating. Flies can contaminate food; gnats, mosquitoes and flies may also bite or just irritate people as they try to work. It may be sufficient to spray them with a can of flying insect spray to get rid of them. You may be treated to the presence of the occasional wasp or bee; while these insects are generally beneficial, you may have employees who are allergic to their stings so you don’t want them in the work place.

Birds and Bats

Most of the birds that fly inadvertently through the garage door are a problem because of the mess they cause. Further, they can’t live long without food and water, so you will have to clean up the bodies eventually. It’s usually difficult to catch birds, but you can call a wildlife specialist to help out. It is illegal to kill protected species, even if they are inside your building, so call a specialist who can identify the species before you act. Bats are also protected, but they may be carriers of rabies so do seek professional wildlife wranglers who can help capture and remove these creatures.

Raccoons or Other Larger Mammals

In the rare event a skunk, raccoon or other larger wild animal dashes into your warehouse, you’ll likely need to call a wildlife specialist who knows how to handle it.

The presence of pests in a warehouse can violate compliance and regulatory standards, depending on the industry. Always practice monitoring and prevention by keeping the premises clean and free of waste that might attract pests. Rather than wasting time and money on DIY remedies, hire professionals who have the equipment and experience needed to deal with the infestation. Consult specialists when it comes to wildlife removal.

A fast-closing door might be in order if you have a particularly serious problem with flying insects or other pests; air curtains may be another solution.