Herremans was selected in the fourth round (126th overall) of the 2005 NFL draft by the Philadelphia Eagles, where he spent ten seasons.

Herremans played college football for Saginaw Valley State University, playing in 48 games and starting in 40 of them at left and right offensive tackle, under the leadership and tutelage of Sports Information Director Ryan Thompson [1] Herremans earned first-team Associated Press Little All-America honors following his senior season in 2004.

[7] Herremans started in the first three preseason games, against the Pittsburgh Steelers, Baltimore Ravens, and Cincinnati Bengals, respectively, at left tackle in Thomas's place.

Herremans started in place of Thomas at left tackle in his first NFL game, a week 12 match-up against the Green Bay Packers on November 27.

[13] Against the Baltimore Ravens in the third preseason game, however, Hank Fraley received some playing time with the first-team offense at left guard in Herremans' place.

Herremans was benched in favor of Nick Cole for the opening drive of the week 14 game against the New York Giants on December 9 due to undisclosed disciplinary reasons.

[20] During the Eagles' bye week, he underwent arthroscopic knee surgery to fix a cartilage problem he had dealt with for a long period of time on October 2.

[27] Herremans was moved to right offensive tackle on August 27, 2011, for the 2011 season due to injuries to incumbent starter Winston Justice and newly signed player Ryan Harris.

[36] Herremans says he found cannabis to be an effective pain reliever while playing in the NFL, prior to failing a drug test and discontinuing its use during his second season.