A piano not only serves the art of music, it is a work of art itself. A wonderfully complex machine, it has thousands of moving parts, a framework and soundboard supporting tremendous string tension, and beautifully finished cabinetry.
Although remarkably durable, pianos are subject to deterioration with time and use. Felt wears, strings break, wooden structures weaken and crack, and the exterior finish loses its beauty. Regular service and periodic action regulation can compensate for minor wear, but heavy or extended use — especially when combined with wide seasonal humidity swings — can eventually cause severe deterioration.
Today, many high-quality older pianos exist in various stages of wear. Because it happens so gradually, this wear often goes unnoticed, leaving many pianos operating far below their potential. In extreme cases, some older pianos are simply left unplayed because of their poor condition.
Some technicians possess the skills to restore such instruments to excellent condition. This work is variously described as rebuilding, restoration, or reconditioning. To establish some uniformity, the Piano Technicians Guild uses the following terms:
Restoration is the process of putting a piano back in good condition by cleaning, repairing, and adjusting for best performance with parts replacement only where necessary. This is most appropriate for a piano with only moderate wear or those of medium value with average performance requirements.
Restoration does not involve replacing major components such as the soundboard, bridges, pinblock, and most action parts. This means the performance and life-span of an older piano will not be restored to new. Instead, restoration is designed to improve a piano’s performance, keeping in mind both costs and benefits.
Rebuilding involves complete disassembly, inspection, and repair as necessary, including replacement of ALL worn, damaged, or deteriorated parts. This piano is then reassembled, tested, and adjusted to the same or similar tolerances as new. COMPLETE REBUILDING includes the entire pianos structure — including soundboard, bridges, pinblock, and strings — as well as the action, keyboard, and case refinishing. PARTIAL REBUILDING includes only one or two of these areas, for example rebuilding of the action and structure, but not case refinishing.
Rebuilding restores the piano to original condition or better. Such comprehensive work is usually most practical for high-quality instruments here maximum performance and longevity are required.
What work is included in restoration?
Restoration may include:
- Thorough cleaning.
- Repair or replacement of damaged parts as needed, typically including such jobs as felt replacement, hammer filing or replacement, and partial restringing.
- Adjustment, regulation, tuning, and voicing to return all parts to proper function, reduce mechanical noise, and improve tone.
- Finish touch-up or polishing.
What work is included in rebuilding?
Complete rebuilding typically includes:
- Complete disassembly of the instrument.
- Repair or replacement of soundboard, bridges, and pinblock, as well as repair of any structural damage to the case.
- Replacement of all strings and tuning pins.
- Thorough restoration of action and damper system, including replacement of hammers, many action parts, springs, and most felt.
- Rebuilding of the pedal and trapwork system, including replacement of all worn felt, leather, and metal parts.
- Refinishing of case and plate, polishing or replating of all hardware, and replacement of all decals, felt trims, and rubber buttons.
- Complete action regulation, tuning, and voicing.
- Multiple tunings to stabilize new strings.
How do I arrange for these major repairs?
If you suspect that your piano needs major repairs, have a complete evaluation done by a qualified piano technician who specializes in rebuilding. Discuss costs versus benefits of various repair options, and whether the completed piano would meet your performance requirements. Most rebuilders will provide you with a written proposal. Expect to pay a modest fee for this service.
You may want to visit the rebuilder’s shop to inspect other work in progress, or ask for a reference list of past clients. Checking out similar jobs will give you a sense of how your instrument could be improved, as well as a feeling for the technician’s workmanship.
When you decide to proceed with major work, be sure to ask for a written contract. This enables you to know exactly what will get done to your piano and the associated costs, estimated completion date, payment method, and guarantee policy.
The preceding article is a reprint of a Technical Bulletin published by the Piano Technicians Guild, Inc.It is provided on the Internet as a service to piano owners.