After leaving school, Fletcher Brock was an apprentice to luthier Michael Allison in Providence, RI, where he worked on vintage instruments and cutting mother of pearl and abalone inlay for Allison’s ornate banjos. Working between projects in Allison's workshop, Fletcher Brock built and sold his first mandolin, a copy of a Martin ”A” model.

In 1979 Fletcher relocated to the west coast where he restored classic wooden yachts, built furniture and architectural interiors along with his work as a luthier. Brock now lives in Seattle, WA where he lives on a vintage 35’ English cutter. His workshop is just down the dock and up three flights of stairs in the former sail loft and lofting area of the historic Jensen Motor Boat Company.

Fletcher concentrates on building archtop style acoustic instruments, particularly the mandolin family, (mandolin, mandola, octave mandolin and mandocello) as well as archtop guitars. Building instruments in small batches or individually, doing each aspect of design, construction, and finishing. Fletcher also build citterns and bouzoukis as well as a jumbo flat top guitar called the “Gordita”.