Abstract: A maneuverable surface sweeper has a framework supporting a hopper configured to receive dust and debris swept from an underlying surface. A broom chamber is mounted within the framework overlying the surface to be swept and in communication with the hopper. The broom chamber may move vertically relative to the framework. A rotary driven broom is mounted in the broom chamber and has limited vertical movement capability relative to the chamber. A resilient tubular seal is disposed between the broom chamber and the hopper so that dust control is obtained therebetween while the broom chamber undergoes vertical movement. A bump encountered on the underlying surface elevates the broom chamber permitting the sweeper to pass thereover while allowing the broom to descend and continue in sweeping contact with the surface.