Our Services
Janitorial Services
Daily and routine cleaning for offices, schools, medical facilities, retail properties, government buildings, and other commercial environments.
Mission Critical Cleaning
Specialized cleaning for data centers, laboratories, cleanrooms, access floors, and other mission-critical facilities.
Floor & Specialty Maintenance
Carpet cleaning, strip and wax, tile care, marble polishing, pressure washing, disinfection, and high-touch cleaning services.
Facility & Building Services
Day porter services, building maintenance, light repairs, facilities management, HVAC and plumbing coordination, and consulting support.
About Us
CJ Maintenance, Inc. is a Columbia, Maryland-based janitorial and facility services company serving commercial, educational, healthcare, government, industrial, and institutional facilities across multiple regions. Family-founded by James and Kristine Choe in 1985, CJ Maintenance has grown from a local janitorial company into one of Maryland's largest minority-owned facility services providers. The company provides routine janitorial cleaning, day cleaning, day porter services, floor maintenance, electrostatic disinfection, mission-critical cleaning, building maintenance, facilities management, green cleaning, and consulting services. CJ Maintenance serves offices, schools, universities, stadiums, airports, data centers, warehouses, multifamily properties, retail locations, government facilities, and healthcare environments. The company holds CIMS Green Building certification with honors and has a long history of environmentally responsible cleaning, including early Green Seal certification. With corporate headquarters in Columbia and additional regional locations in Baltimore, Philadelphia, Central Pennsylvania, and Northern Virginia/Washington, D.C., CJ Maintenance supports both single-site and multi-location facility programs.