How to Keep Other Animals from Using a Pet Door

Install a motion-activated light above the door to frighten intruders. Many animals that might try to gain entry through your pet door at night, such as raccoons and stray cats, might be frightened off by a motion-sensor light. Purchase a motion-sensor light from a hardware store and install it above the door where the pet door is located.^[6]

• Another option is to get a motion-activated sprinkler if you have a lawn outside your door. This will spray water at any animals that approach the pet door. However, make sure to shut it off before your pets go outside again.

Sprinkle cayenne pepper outside the door. The spicy scent of cayenne pepper should keep intruder animals like raccoons, squirrels, and stray cats away from your door. However, your pet may also dislike the scent of this spice. Try sprinkling a bit of cayenne outside the door at night and then rinse it away with water in the morning before your pet goes outside.^[7]

• You could also try other powerful spices and herbs if you don’t have cayenne, such as cloves, peppermint, and cinnamon.

Place a bowl of apple cider vinegar next to the door at night. Apple cider vinegar is another powerful scent deterrent. Fill a small bowl with 8  fl oz (240 mL) of apple cider vinegar and place it just outside your pet door. Any animals that try to come in will have to deal with the scent and this may be enough to keep them away.^[8]

• Another option is to sprinkle apple cider vinegar in front of the door, but the scent may not be as powerful this way.

Turn on a radio and place it near the door before you go to bed. Intruder animals tend to try to get in at night when it’s quiet, but they might think twice about coming through a pet door if they hear the sound of human voices on the other side. If you’re unable to lock the pet door, turn a radio on to a talk radio station and place it beside the door. This may also be a good option if you’re going away for a few days and don’t have a way to latch the door.^[9]

• Another option is to switch on a television in the room where the pet door is located.
• You could also try placing wind chimes outside next to the door, but these won’t always make noise since they require a breeze to work.

Move your pets into a separate room and close the door. Try to remain calm and speak in a low, quiet voice as you do this. Close the doors to other rooms of your home as well, to prevent the intruder animal from gaining access to these areas.^[10]

• If you have a friend or family member who can help you, they could secure your pets while you work on removing the intruder.

Create a trail of food leading to an outside door. Open a door and then drop a few pieces of food on the floor leading outside. This may be enough to lure the animal back outdoors. If the animal follows the trail, shut the door behind it once it is outside. You can use marshmallows, cereal, crackers, or any other food you have on hand.^[11]

Frighten the animal by making loud noises and turning on lights. Grab a metal pot and a spoon and bang it, or switch on a vacuum cleaner to frighten the animal towards the door. Turn on all of the lights in your home to create a bright environment as well. You might even switch a bright light on and off a few times to scare the animal towards the door.^[12]

• Even stomping your feet, clapping your hands, and yelling may be enough to spook the animal and get it to leave.