With over 30 years at the bench, Marianne Ganzer oversees our talented workshop staff and full-service facility. The members of JSI's workshop staff hold degrees from the Chicago School of Violin Making and the North Bennet Street School in Boston, and have acquired training and professional experience with esteemed restorers such as John Dilworth, Jean Jacques Fasnacht, and Hans Jurgen Nebel. Assuring the highest quality control, our workshop offers engaged, thorough customer service that helps direct you to the choices that best meet your needs.

All major repairs are GUARANTEED
for as long as you own your instrument!

Instrument Repair and Setup: JSI offers expert repair and restoration, as well as custom setups and tonal adjustments for violins, violas, cellos, and basses.

Bow Rehair and Repair: Bow repair and rehair services are available for violin, viola, cello, and bass bows.

Please contact us for more information.

Tonal Adjustments - Varnish Retouching
Instrument Setup - Bow Rehairing
French Polishing & Cleaning
All Types Of Repairs & Reconstruction