The Guitar Workshop has been Plainfield’s trusted destination for professional guitar repair and custom builds since 2008. Owner and luthier Mario Percoco operates this one-man shop with a commitment to master-level precision, personally handling every instrument from intake to completion. His client roster includes top regional musicians who depend on his expertise for studio and stage-ready performance.

As a Taylor Factory Authorized Technician, Mario specializes in comprehensive guitar setup, precision fretwork, refrets, and fret leveling across all makes and models. His reputation is built on solving the “factory fails” that big box stores overlook, bringing boutique-level attention to acoustic guitars, electric guitars, bass, banjo, mandolin, and other stringed instruments.

The Guitar Workshop also crafts handcrafted custom guitars and specializes in vintage guitar restoration, combining traditional luthier techniques with modern performance demands. Mario’s philosophy is simple: if it isn’t right, he’ll make it right. This fully insured, appointment-only shop serves Chicagoland players with the detailed care and technical expertise that keeps professional instruments performing at their peak.