At 15:12  Sunday Campbell Co. Communications toned  Co. 12 along with  Co. 15, and Squad 2 for a working house fire on Sunny Bank Drive. Medic 28 responded with 2 at 15:15.  Chief Watson (Co. 15)  first on scene POV reported heavy smoke showing A, B & C sides & fire. Co. 12 arrived and started interior attack while crews were venting the roof.  Crews worked on scene for 2 hrs in 80 degree weather.  The fire was determined to be started by a cigarette that as placed on the back porch.