About Piano Hammers
A piano’s hammers are made of felt stretched over a piece of wooden molding. The hammer felts are subject to the greatest wear of all felts found in a piano. They are also the single most significant factor the influences the feel of your piano at the keyboard.
Over time and use, hammers wear out and need to be replaced. How long a set of piano hammers will last depends on how often the piano is played. A teaching piano or a piano in an institutional setting (church, school, or university), may need replacement hammers in as little as 5 – 10 years. Pianos receiving only occasional use could go much longer. In addition, pianos that have sat idle for an extended period could possibly experience accelerated hardening of the hammers.