Company 34 was dispatched at about 0530 to a working fire on the 4000 block of 37th Street in Bunker Hill, in Co. 55’s first due. Truck 34 responded as the first due special service on the task force alarm upgrade. Crews arrived to find one house fully involved with fire spreading to houses on either side. Company 34 entered the side delta exposure house and completed a primary search of the basement division, checked for extension on the first and second floors, and conducted fire suppression and ventilation on the second floor. Truck 34 was held on scene for approximately 5 hours to complete overhaul and was released at 1030am.