NORWALK, Conn. -- Emcor Group Inc., a contractor to the electric power industry, said Thursday that its third-quarter net income fell 3 percent. When discounting a unit sold off last year, however, profit rose 22 percent, besting Wall Street expectations.

The Norwalk, Conn., company raised its guidance for the year, and shares rose $2.65, or 9.3 percent, to close at $31.14 Thursday. It said its construction business did well, and it focused on controlling costs in an environment it called "choppy."