About
Superior Excavating, Inc. (SEI) has been a cornerstone of Michigan’s underground utility service industry since 1966. Originally founded by Frank E. Baiardi and still operated by the Baiardi family, SEI brings generations of experience and commitment to every job. We specialize in water and sewer line installation, site development, and infrastructure support for municipalities and development companies. Over the decades, SEI has built a reputation for delivering high-quality results on schedule and within budget. Our team is highly skilled, safety-focused, and driven by a shared mission to enhance Michigan’s infrastructure. At SEI, long-term client relationships are our foundation—many of our municipal partners have trusted us for decades. When your project demands experience, reliability, and local knowledge, count on Superior Excavating to get the job done right.
