Sunday at approximately 12:30pm, the Warrenville FPD was dispatched to a reported chimney fire at 29W601 Ridge. After DuComm received several more calls, they upgraded to a general alarm. Chief 11 arrived and reported fire through the roof. I arrived just ahead of Warrenville TL 11. The first engine had started an interior attack on the fire. It appeared the chimney and a portion of the roof and attic were involved. Interior crews were able to hit most of the fire from the 2nd floor, and the fire was under control within 15 minutes.