D&J One Service Solutions in Chula Vista is a multi-service cleaning and maintenance firm established in 2005, operating from Dixon Way near the 1st Avenue intersection in the 91911 ZIP. The company holds contracts with property management firms and construction companies for scheduled maintenance, vacant-unit turnover, and post-construction cleanup — restoration-adjacent work that overlaps with the fire and water damage recovery services at AHI Restoration. Service categories span house cleaning, office janitorial, window washing, and pressure washing, covering every surface from baseboards and interior glass to exterior concrete and stucco. The pressure-washing division handles driveway degreasing, sidewalk algae removal, and building facade cleaning, a scope that intersects with the drain-line and sewer maintenance performed by Solid Plumbing & Drains Inc on the same commercial properties. Post-construction protocols include fine-dust HEPA vacuuming, adhesive-residue removal from hard floors, window-label scraping, and fixture-polish detailing — the final-phase punch-list items that precede certificate-of-occupancy inspections.