Restringing a Piano: The Full Process

Published: 10/6/2026 11:52:18 PM   Clicked: 5

Strings are the direct source of a piano's sound, and after years of use they can corrode, lose tension, or even snap, leaving the tone dull and lacking brightness. Restringing is a key part of restoring tone on many older pianos, but most owners aren't familiar with what the process actually involves.

The first step is removing the old strings and checking the pinblock's condition — if it has become loose, it needs to be repaired or replaced as well, otherwise the new strings won't be able to hold pitch reliably once installed. The second step is sourcing or custom-making new strings to the original factory specifications. Bass strings are typically wound with copper wire, and the gauge and number of winds affect tone, so technicians generally match strings to the piano's original model rather than substituting generic ones.

The third step is installing the new strings one at a time and bringing them up to initial tension — pitch will still be unstable at this stage, which is normal. The fourth step is letting the new strings go through a “stretching-in” period, usually requiring repeated tunings three to five times, spaced one to two weeks apart, until string tension and pitch settle down. The full restringing process typically takes around a month from start to finish, longer than a routine tuning, so it's worth allowing extra time in your plans.