Carpentier was selected by the Rouyn-Noranda Huskies in the third round of the 2004 Midget Draft, and made the team out of camp in his rookie season. He saw much of his ice-time on the fourth line, where he appeared in 49 games. He showed flashes of offensive talent, and these skills were put to the test in his sophomore season, where he was entrusted a spot on the top two lines. Carpentier did not disappoint, appearing in every game, and posting 70 points (31 of which were goals), good enough for third on the team in both categories.
2006-07: Carpentier played his hockey with the Huskies (QMJHL) this season, his third straight with the team. In 69 games, he netted 17 goals and 54 points, along with a career-high 86 penalty minutes. He also competed with the Canadian National U18 Team, but failed to register any points through seven games at the WJC-18.
2007-08: The Rouyn-Noranda Huskies (QMJHL) center scored 27 goals and 65 points, his second best total ever, in his final season with the club. His 69 games also allowed Carpentier accumulate 114 penalty minutes, a personal best.
2008-09: This marked Carpentier’s first season of professional AHL hockey, albeit a brief stint. In 17 games with the Quad City Flames, he tallied a pair of goals and as many assists. He spent the rest of the season with the Las Vegas Wranglers (ECHL), potting nine goals and 24 points in 45 games.