Typical project ranges for a single distribution box install span from $500 to $3,000, with most residential jobs landing around $1,000 to $1,800. The main cost drivers are the number of boxes, trenching, backfill, and permit requirements. Cost ranges reflect. Understanding distribution box cost involves examining the comprehensive investment required for electrical distribution systems that serve as crucial infrastructure components in residential, commercial, and industrial settings. ” At NUOMAK, we believe that your power.