Workers at the London City Hall is a Tape-Slide project. This short film consists of stills of the interior of the London City Hall with cleaners fading in and out of vision. A soundtrack of hovering, recorded by the cleaners themselves, accompanies the images. The cleaners are presented as phantoms, barely visible, yet present. Tidy, crisp images are juxtaposed with the messy recording of cleaning in progress. Economic migrants clean Britain's most important institutions. What are the implications on our collective conscience if the poor from around the world clean the buildings that define Britain as a democracy?