I pulled into my driveway one nite, hit the garage door lift button and the door only went up about 12-15 inches, the stopped. I called Alpine and John informed me that my garage door spring broke. Apparently, there are 2 of them that pull the entire door up. This time the left side spring broke. Springs can just snap with no warning. 200 lb, 2 car stall door. Seems like a spring breaks about every 8 years or so. I looked in my records, turns out John has helped us out 4-5 times over the years. He came over a couple days later and replaced both springs. Excellent job !! Great guy, friendly, knowledgeable as always. Will highly recommend to anyone !!!! Thanks John !!!!