A Modification Services program for large industrial enclosures includes mods such as size changes in height, width and depth; finish changes of more than 100 powder paints; holes and cutouts for enclosure body, doors or subpanels; and other options such as user-specified studs and nuts, hinging changes, false bottoms, mounting struts, ventilation options; and installation of accessories. All modifications are done under ISO-9001 manufacturing conditions.