One of two springs broke on my garage door. The next morning I set up an appoinment, and the service tech arrived on time. He was very skilled at what he was doing, cheerful, and professional in every way. He made certain that I was completely satisfied, lubricated the whole mechanism and hinges, and even dictated a set of instructions to program the garage remote in one of my cars that was not there when he did the repair. I would recommend Clark Overhead Doors without reservation.