In 2000–01 they finished second bottom of Division One and were relegated to Division Two. After finishing bottom the following season they resigned to go back to the Essex Senior League. They returned to the Isthmian League after winning the Senior League in 2008–09, and remained in Division One North for over a decade. Despite a difficult year in 2017–18, they were able to survive despite being five points adrift with just two games remaining. The following season they found themselves in a possibly even worse situation as they were nine points short of safety with five games remaining, but staged a late recovery only to fall short on goal difference behind Witham Town. However the knock-on effect of the mid-season demise of North Ferriby United meant Romford were reprieved from relegation to fill the vacancy.