About us

Len Berkowitz
Owner and master craftsman Len Berkowitz trained in California before moving to the Baltimore-Washington metro area to open Great Panes in 1980. Today Len handles all repair and restoration work; glass cutting, estimates and on-site consultations; and window removal and installation.

Sherry Fackler-Berkowitz
Co-owner Sherry Fackler-Berkowitz brings nearly 30 years of experience to her work at Great Panes. Sherry works with lead, copper foil, and creates one-of-a-kind fused glass jewelry and glass beads. Sherry is Great Panes’ glazier, and handles soldering, mold making, slumping, fusing, and the restoration of bent panel lamps.