There is a very real home security risk when the garage door is left open. You give burglars easy access to your garage. You also leave yourself and anyone in your house open to attack. Leaving your garage door open may also provide a way of entry for squirrels, rats, raccoons, and snakes. Open garage doors can also bring the worst of the weather inside such as snow and ice.
To avoid incidents related to open garage doors, get one of the alert systems that are available. They will flash a light or make a noise when you get into the house while the garage door is still open. This