With approximately 1500 parts, most of them moving, it is inevitable that repairs will be needed from time to time. Depending on the design of the piano, most repairs are simple for an experienced technician, and I am always glad to help. Sometimes all that is needed is a little glue, other times a metal spring. Regardless of what the problem is, I have the training to address the issue.
One major cause for a key getting stuck or the sudden appearance of a clicking sound is a pencil or some other object falling into the piano.