Quality. Efficient. Reliable.

Over 65 Years of Experience in the Utility Field

Founded by Jack St. Clair in 1946, today JSI continues over half a century of honesty, integrity, hard work, and utility contracting excellence. We are a third-generation family business.

We continue to build a strong foundation for our employees and customers in a safe environment. JSI has trained, fully staffed crews working hard to bring you quality work on schedule and on budget.

Our management team brings a combined 115 years experience to all aspects of the job, from bids and field operations to estimates and human resources. From bid to cleanup, all members of our team pride ourselves on our honesty, integrity, and quality work.

Licenses & Certifications

  • SWAM #673997
  • Class A Contractors License #2701-020183
  • VDOT #S1092
  • Bonded

Our Utility Contracting Services Include

  • Sewer lines and water lines
  • Storm drain pipe systems, including storm water management and water quality systems
  • Portable water distribution systems
  • Fire mains
  • Sanitary sewer
  • Trenchless line repair
  • Bottomless culverts
  • System upgrades and replacement
  • Excavation

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Member of...

National Utility Contractors Association (NUCA)
National Utility Contractors Association (NUCA)

Roanoke Regional Home Builders Association (RRHBA)
Roanoke Regional Home Builders Association (RRHBA)

National Association of Home Builders (NAHB)
National Association of Home Builders (NAHB)

Roanoke Regional Chamber of Commerce
Roanoke Regional Chamber of Commerce