The structural steel of a building is its skeleton, supporting the unique architectural features and design. And every building is dependant upon the strength and durability of its underlying structure  it must be fabricated correctly and erected perfectly. At Sigma Metals, we offer both structural fabrication and erection. Equipped with two mobile cranes, we are able to handle all sizes of steel structures. And Sigma Metals will work with you through every project phase, ensuring our work is on time and within budget.