In round 13 of the 2008 NRL season, Houston made his first appearance as a captain due to the Newcastle Knights regular captain Kurt Gidley and vice-captain Steve Simpson being unavailable for the match.

In March 2010, Houston was served with a notice to attend court on charges of supplying ecstasy and cocaine.

[10] On 2 December 2015, Houston signed a two-year contract with Super League side Widnes Vikings starting in 2016, after being told he was free to look elsewhere by incoming Knights coach Nathan Brown.

[11] On 11 July 2017, it was announced that Houston had signed an extension of his contract with Widnes, keeping him at the club until the end of 2018.

[12] In 2009, Houston was named 18th man for New South Wales in Game 3 of the 2009 State of Origin series, however he didn't play.