Modified Sounds operates as a mobile guitar tech service bringing professional instrument care directly to musicians throughout Riverside and the surrounding Southern California region. The shop specializes in comprehensive guitar repair and maintenance, handling everything from standard setups and fretwork to complete refurbishing projects. Their expertise extends to custom and boutique guitar builds, working closely with clients to create personalized instruments tailored to individual playing styles and tonal preferences.

The team has developed particular proficiency in vintage guitar work, understanding the unique requirements of aged and relic instruments that demand careful attention to preserve their character while restoring playability. Services span the full spectrum of guitar tech work, including component upgrades, modifications, pickup installations, and precise intonation adjustments for both electric and bass guitars.

Operating by appointment only on Saturdays, Modified Sounds maintains a client-focused approach with flat-rate pricing and a satisfaction guarantee. Their mobile service model allows them to serve multiple communities across Orange County and the Inland Empire, bringing luthier-quality craftsmanship directly to musicians’ homes or studios.