Upon promotion to the NCEL Division One, they finished runners-up in their debut season. This pattern continued in the league three more times in 1986–87, 1987–88 and 1988–89 before they eventually became champions of the league in 1989–90 – now bearing the name Nestlé Rowntree, after the takeover of their parent factory. Unfortunately for the club, although they were champions and had earned promotion, they were relegated to NCEL Division Two due to new ground regulations which had been introduced. They left that league the following season disheartened even though they had finished third.