Since the early 1970s, wall installations have been Weiner's primary medium, and he has shown at the Leo Castelli gallery. Nevertheless, Weiner works in a wide variety of media, including video, film, books, sound art using audio tape, sculpture, performance art, installation art, and graphic art. In 2007, he participated at the symposium "Personal Structures Time-Space-Existence" a project which was initiated by the artist Rene Rietmeyer. In 2008 an excerpt from his opera with composer Peter Gordon – "The Society Architect Ponders the Golden Gate Bridge" – was issued on the compilation album "" (Bridge Records) produced by Mendi + Keith Obadike. In 2009 he participated in the art project "Find Me", by Gema Alava, in company of artists Robert Ryman, Merrill Wagner and Paul Kos.