Welsbach Electric of Long Island is a wholly-owned subsidiary of EMCOR Group, Inc. EMCOR is the world's leading provider of mechanical and electrical construction and facilities services, including planning, consulting, and operations and maintenance.

Welsbach Electric provides electrical construction services in Nassau and Suffolk counties.

With strategic footholds in the transportation and industrial markets, we have been able to capitalize on existing and emerging technologies to become one of the major electrical contractors on Long Island.