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MasTec | Infrastructure that Delivers Leading specialty contractor engineers, designs and constructs infrastructures for electric power generation and transmission, oil and natural gas pipelines, renewable energy facilities and wireless networks.
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High voltage transmission line construction company.

MasTec is one of the nation's top transmission line construction companies, specializing in high voltage and extra high voltage transmission systems from 760kV and down. From remote rural locations to congested metro areas, we are contractors for high-voltage overhead and underground electric transmission services in even the most challenging terrains and circumstances, and our experience has given us a deep understanding of the unique characteristics and hazards of high-voltage power line operations. We work closely with our clients (and their partners) to ensure the highest levels of safety, overall environmental stewardship, and quality of each project.


  • Civil Construction

    Excavation, access roads / right of ways, duct bank / trench construction, foundation and caisson installation

  • Structure Installations and Rebuild (energized or d-energized)

    Concrete, hybrid, lattice steel reinforcement and modifications, light-weight steel pole, steel pole and wood pole

  • Conductor, OPGW and ADSS Stringing
Emergency Restoration and Maintenance
  • Bare-hand Services (up to 500kV)

Services Provided by:

Related Projects

115kv Steel Structure Reinforce & Reconductor High Voltage Electric Transmission Line
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115kv Steel Structure Reinforce & Reconductor High Voltage Electric Transmission Line

Transmission Systems

Des Plaines / River Road
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Des Plaines / River Road

Overhead and Underground Distribution

Des Plaines, IL
Five Mile to Homer Hill Reconductor Project
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Five Mile to Homer Hill Reconductor Project

Transmission Construction

Olean, NY
305.599.1800 services@mastec.com