Precision Repairs, Personalized Setups
Whether it’s your first guitar or your forever bass, MION offers high-quality repair, maintenance, and upgrades tailored to your playing style. We’ve restored everything from vintage Fenders and boutique builds to road-worn acoustics and custom basses. Your sound matters—and we make sure it plays perfectly.
Setup & Maintenance
String replacement & tuning
Action, relief & intonation adjustment
Pickup balancing & fine-tuning
Full-body cleaning & conditioning
Repair & Restoration
Fret dressing & replacement
Nut & saddle work (custom-cut)
Electronics diagnostics & rewiring
Crack and neck joint repairs
Bridge, binding, and finish fixes
Mods & Upgrades
Pickup swaps (passive/active)
Potentiometer, switch, and jack upgrades
Light relic & cosmetic customization
Boutique tuning setups for live or studio
Trusted Hands, Certified Skill
Our head technician holds official repair certification from Taylor Guitars, reflecting our commitment to top-tier craftsmanship. While we specialize in all major brands—Fender, Gibson, Martin, Yamaha, Gretsch, and more—we also bring factory-level precision to acoustic and electric repair.
For All Makes & Models
From vintage Telecasters to boutique acoustics, we’ve seen it all.
We're brand-agnostic—but always quality-obsessed.
OUR LOCATION
MION Instruments
Aoyama Morimachi Building
4-9-18 Mori, Isogo Ward, Yokohama City, Kanagawa 235-0023
Phone: 045-513-3041