Ladder and Engine 65 were dispatched to assist Station 42 on a dwelling fire on Graber road in Marlborough Township.  Deputy 71 arrived to find an active fire in the chimney.  Chief 42 arrived and directed Squirt 71 to set up ground ladders, Ladder 65 to assist the Squirt crew and Engine 42 to work on salvage and clean out the hot box in the basement.  Captain 65 and Asst 71-1 with crews from Engine and Ladder 65  went to the roof and checked for extension while Asst. 65-2 and Asst. 42 worked to clean out the box in the basement.  Crews worked for about 30 minutes and were returned to service.