As the largest company in Colorado that self-performs civil construction, asphalt and concrete maintenance, including a compa ... ny-owned fleet of heavy equipment, over 300 full-time field employees and a management and estimating team with over a century of combined expertise. ESI bring together a quality product that’s built to last for commercial, municipal and federal projects. Today ESI consists of two departments: Construction and Maintenance. The Construction Department provides underground utility and pipe installation, earthwork, asphalt paving, grading and site, and structural concrete and general contracting services. The Maintenance Department provides many maintenance-related services, including infrastructure repair, milling, infrared patching, asphalt crack sealing, seal coating, remove and replacement (R&R), paving and striping. In addition, ESI’s Maintenance Department offers snow removal services for commercial and industrial properties. ESI’s management and estimating team has over 140 years of combined experience in heavy civil construction. The company is proud to offer one of the newest and most technologically advanced equipment fleets operated by personnel who are fully trained with the most current industry and safety standards. read more