Companies were dispatched to the dwelling fire, with Fire Board advising numerous calls. Squrt-36 arrived reporting heavy smoke showing, they stretched an 1-3/4 to the 1st floor. There was Heavy fire in the basement, 1st, & 2nd floors, with heavy fire blowing out the rear windows. 37-1 stretched an 1-3/4 to the basement from the rear, and a 2nd line was started into the 1st floor from the front. There was some extension into the party wall of the "D" exposure. Truck co's opened the roof to check for extension there. Crews worked hard and made a nice knock on all of the fire. Companies 36 & 37 on the original, with company 26 & Tower-74 for the R.I.T.