Zeltmacher Structural Design Engineering, Inc. is a small California structural engineering firm that specializes in architectural, industrial, commercial and high-end residential projects with a focus on project delivery and client relationship building. Structural Engineering Services Provided: -Structural systems design, analysis and detailing -AutoCAD drafting services -Structural engineering consultation for owners and other design professionals -Retrofits, improvements and remodels of existing structures -Seismic hazard analysis (FEMA, ASCE, ICSSC, etc.) -Agency plan-check services