 Sandwith was released on 31 May 2011.After spending the pre-season training with Eastwood Town, Sandwith joined Gainsborough Trinity in August 2011, debuting in the club's 3–1 Conference North victory at home to Solihull Moors on 13 August 2011.Sandwith was not amongst those players retained at the end of the 2011–12 season and thus left the club.