About Sierra

In 1981, with the dawn of the open economy, six enterprising individuals teamed up to form what was to become one of Sri Lanka’s best known enterprises.

Sierra Construction Limited was incorporated to venture into the fields of Civil and Telecommunication Engineering, sectors that were hitherto solely dominated by foreign companies or by companies with foreign collaborations.



To be the preferred infrastructure development partner in the region.


» Exceptional performance in all aspects
  of our industry.

» Outstanding customer service.
» Unparalleled value.


  • Power

    Construction of 33kV Lynx Conductor Four Circuit (12 phases) Single Earth 5.5 km Tower Line from Hambantota Grid Substation to Hambantota Port.

  • Water, Drainage, Sewerage

    ADB Assisted Dry Zone Urban Water and sanitation Project Construction of Water Storage Structures in Mannar- STRU/M/12

  • Sierra Gulf LLC

    DAS installation with Active Equipment.

  • Sierra Gulf LLC

    CW for Outdoor Tower Installation & Sharing Sites.

  • Sierra Gulf LLC

    DAS installation with required civil works.

  • Sierra Gulf LLC

    CW for Outdoor Rooftop Tower Installation

  • Telecom Engineering and Construction

    Unit Rate Project

  • Civil

    Construction of the Grand Stand and infrastructure facilities in Rangiri Dambulla International Cricket Stadium at Dambulla.

  • Water, Drainage, Sewerage

    Construction of civil, mechanical and electrical works for Thirukkovil water supply scheme

  • Power

    Construction of 132kV transmission line from Kelaniya to Sapugaskanda – Package D (KKSTL)

  • Water, Drainage, Sewerage

    Supply & Laying of Distribution Pipes and Construction of Elevated Water Towers for Hambantota Water Supply Project

  • Sierra Gulf LLC

    Underground Infrastructure Expansion and Maintenance (Civil Work ) for Ooredoo FO Network