About us

Why us?

ADG Maintenance

Janitorial Services

ADG Maintenance Co, Inc. is a leading provider of janitorial cleaning services with over 35 years of successful client relationships.

We deliver the highest quality, reliable services though customized and comprehensive programs designed to meet our client's needs in a cost effective and efficient manner.  ADG Maintenance is a privately held corporation, family-owned and operated since 1976.  ADG's commitment to excellence is maintained by rigorous quality control and the "hands-on" approach of the company's owners.

ADG Maintenance is a small, disadvantaged, minority owned business making us an attractive option for clients/government agencies seeking a quality janitorial service provider to meet their small business goals.  

Our certifications include:

  • Central Contractor Registration (CCR) - Federa

  • City of New York - MBE (pending)

  • Dormitory Authority - MBE

  • NY & NJ Purchasing Council (MBE)

  • State of New Jersey - SBE

  • State of New York - MBE (pending)

  • The Port Authority of NY & NJ - SBE Program (pending)

  • The Port Authority of NY & NJ - MBE (pending)

  • Small Disadvantaged Business (SDB)​