What is Regulation:  Piano regulation is the piano technician's term for adjusting the approximately 10,000+ parts that make up the grand piano or upright piano action mechanism so that the piano functions properly and evenly from note to note.

The Piano Action:  The complex system of levers, springs, and hammers connected to the piano keyboard is called the piano's action.  It is an amazing system composed largely of wood and felt.  This mechanism needs to be highly responsive in order to allow the pianist the capability to achieve a wide range of dynamics - from loud, thunderous chords to soft, delicate passages.

Typical Grand Piano Action

Why Regulate:  The action parts are initially adjusted to a tolerance of a few thousandths of an inch at the factory.  Because the wood and felt parts of the piano action change their dimensions over time, due to humidity fluctuations and wear, the action must be regulated periodically to maintain its responsive qualities.  Severely worn action components and hammers may require that the action go into the shop for reconditioning or even replacement of action parts before regulation can be accomplished.

Optimum Performance:  Only a piano that is in proper regulation will perform to its ultimate capability.

Typical Upright Piano Action

Time and Cost:  The cost of regulating the piano action can vary depending on the type of piano (upright or grand), age of the piano, the requirements of the pianist, the condition of the hammers and other parts, etc.  Typically, the performance of most pianos can be dramatically improved by regulation in the home in about 4-8 hours.

Please contact Piesik Piano Service at:

(760) 726-4665