A firm spokesman says he died of natural causes but had been treated for lung cancer.
Torcivia, 82, founded Torcon in 1965 and was succeeded as president by two sons in 2003.
The firm, a major drug-industry builder, ranks at No. 151 on ENR's list of the Top 400 Contractors, with $376 million in 2011 revenue, including $62 million overseas. It also is No. 80 on the list of the Top 100 CM-at-Risk firms.
Torcivia also was a two-time president of the Building Contractors Association of New Jersey.