Born in Consett, Stirk played youth football for local non-league team Consett A.F.C. He joined Ipswich Town on schoolboy terms in 1971, and after making two appearances for the England youth team, turned professional in 1973. During his time at Ipswich he was largely a reserve. He made his first-team debut on 5 November 1977, in a Football League First Division match against Manchester City at Portman Road. His manager at the time was Bobby Robson, who later went on to manage the England national football team. Ipswich won the FA Cup in 1978, in what proved to be Stirk's final season at the club. However, Stirk himself did not play in the final, nor did he play in any of the rounds en route to the final.