M & J Underground Inc. is committed to maintaining the licenses, certifications, and industry affiliations needed to provide dependable underground utility and construction services in Monee, IL, and the surrounding Chicago South Suburbs.
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Business Certifications & Credentials
Minority Business Certified
Woman-Owned Business
Licensed Plumbing
IDPH #055043993
Licensed Septic Repair and Installation
IDPH #049-031115
IDPH #054-011408
Better Business Bureau Accredited Business
A+ Rating
Minority Business Certifications
As a woman-owned business, M & J Underground Inc. is certified as a minority business with:
Illinois Department of Transportation (IDOT)
City of Chicago
Illinois Central Management System (CMS)
Community Block Grant Development Program (CBGD)
Small Business Administration (SBA)
These certifications reflect our commitment to professional standards and our ability to participate in qualifying utility and construction projects throughout Illinois.
