The leading causes of garage door failure and/or replacement include lack of maintenance and being hit by vehicles. A proper maintenance schedule for a garage door includes lubrication of the rollers, bearings, pulleys, and springs once a year; washing painted steel surfaces several times a year; painting or refinishing wood surfaces as necessary; and making proper adjustments to the counterbalance system as necessary to maintain door balance. A properly balanced garage door should be able to be stopped mid-travel without drifting down or up when operated manually.