Timmons began his inter-county career as a member of the senior Wicklow team in the early 'fifties. He later declared for Dublin and had much success going forward into the early 'sixties. During that time he won one All-Ireland medal, two Leinster medals and one National Football League medal.
At club level Timmons began his career with Annacurra in Wicklow, before going on to play for St Mary's and Seán McDermotts in Dublin.
His brother, John Timmons, was also an All-Ireland medalist with Dublin.
