Quanta Services (NYSE: PWR) reported quarterly earnings of $2.72 per share which beat the analyst consensus estimate of $2.69 by 1.12 percent. This is a 21.43 percent increase over earnings of $2.24 per share from the same period last year. The company reported quarterly sales of $6.49 billion which missed the analyst consensus estimate of $6.57 billion by 1.11 percent. This is a 15.51 percent increase over sales of $5.62 billion the same period last year.