Berwyn (IL) firefighters responded to a call for a house fire Tuesday night (12/26/27) @ 3524 s Gunderson. First company arrived and found a 1.5-sty bungalow with a fully involved attic, that had already extended to the exposure to the north. Companies lead out 5 lines in total, and used the aerial pipe to bring the fire under control. I arrived with the first company.