Frampton was born in Wimbledon, London and brought up in nearby Purley before being scouted and signed at the age of 11 by the youth Academy of Football League First Division side Crystal Palace whilst he was playing for the Croydon Schools FA.

[4] Frampton progressed through the youth system at Crystal Palace before breaking into the first team and making his Football League debut at the age of 19 on 3 April 1999 in a 1–0 win over Norwich City at Carrow Road.

[8] Frampton found his first-team opportunities limited during the 2001–02, playing just two matches in April 2002, as he proved unable to compete with Craig Harrison as first choice left-back.

[9] The defender made two appearances for Crystal Palace during the 2002–03 season, however, having failed to cement his place in the first-team, Frampton subsequently joined Football League Second Division club Brentford on a free transfer on 28 October 2002.

On 28 June 2013, Frampton joined Football League Two side AFC Wimbledon on a two–year deal after turning down the offer of a one-year contract extension with Gillingham.