Mar 14 Garage Doors Need Annual Service Posted by: Apple Door Systems in: Service A garage door is the largest moving object in the home. They are often operated by electric door openers. Proper installation, operation, and maintenance and testing are necessary to provide safe, trouble-free operation. An improperly adjusted garage door or automatic opener can exert deadly force when the door closes. This could lead to serious injury or death from being hit by a closing garage door or from being trapped under the door. read more ›