Mark Brown praised the playwright as understanding the 'double burden' of class and gender carried by working class women, and added that "arguably his best writing is reserved for Otto's solitary musings on his position [...] The great beauty of Tom Fool is that it manages to address the politics of capitalism without a hint of polemic. Kroetz relies upon the emotional dynamics and powerful poetry that are the hallmark of great theatre". The Guardian's Mark Fisher gave a 2006 performance three out of five stars, praising the performances but arguing, "By showing not only the explosions but also the mundane business of clearing up, the play has a fragmented rhythm". Gardner gave a positive review to a 2007 performance, arguing that Kroetz is able to make mundane events "hypnotic"; she claimed that the majority of the play is "like watching an unstable building sway and fall in agonising slow motion." Tom Fool was described as "superb" in The Herald.
