ZION Drywall Services on Santee's Cuyamaca Street corridor holds CSLB license #1004823 under the C-9 Drywall classification, handling drywall installation, repair, patching, and texture matching across San Diego County. New construction drywall hangs follow mechanical rough-in, a sequencing step that places drywall crews on-site after HVAC ductwork installation by firms including Fresh Air Mechanical is inspected and approved. The repair portfolio covers water-damaged ceilings, stress cracks, hole patching, and full-room re-texturing, with specialty texture-matching techniques that replicate existing knockdown, orange peel, skip-trowel, and smooth finishes. Completed drywall surfaces require immediate paint-priming to seal joint compound before finish coats are applied, a handoff point with painting contractors such as Windco Painting that ensures proper adhesion on new gypsum board. Full new-construction hangs involve Type X fire-rated 5/8-inch gypsum board on garage partitions and rated assemblies, with taped finishes specified at Level 4 for standard walls or Level 5 for high-visibility surfaces under ASTM C840 installation standards.