Station 82-1 was dispatched for a working structure fire. Crews arrived with heavy smoke from 2nd floor. IC sent crews to the basement. 8274's crew advanced the initial handline and Robbinsville Squad 40's crew advanced the backup line to the basement where the bulk of the fire was extinguished. Crews from Groveville Engine 19, Nottingham Tower 17, Millstone 32-1, 40 and 82 had to perform extensive overhaul throughout the house as fire travelled within the walls. New Egypt Station 39 provided a cover crew while 82 units worked. Also on location was Allentown First Aid, Allentown PD, and PSE&G. Thank you to all that assisted.