This morning at 0200, companies 8 and 7 were dispatched to a dumpster fire on the 900blk of Chester pk. While enroute Engine 8 was advised of an exposure problem and arrived moments later to find a dumpster well involved up against the rear of the building. Engine 8's crew stretched 1 3/4 to attack the fire and placed a ladder to check the roof of the exposure. 07-1, Snozzle and Rescue 8 arrived and also placed a ladder to the front of the building and assisted Engine 8's crew. The fire was knocked quickly and there was no extention to the building, crews cleaned up and returned.