Box 8111 was transmitted for a fire in a house on 9412 Beaugard Ave. Home owner reported shed was on fire, with dog still in the house. Capt Murphy first on the sence report of a working fire. Engine 1-1 got on sence with heavy fire to rear of the garage with extension to the top part of the house. Use mulitple handlines to extguish fire, upon searching the house they found the family pet on first floor. Fire is still underinvestigation. Manassas units were Engine 1-1, Tower-1, Battalion-81, Utility 1-1, Rescue-1, Ambalance-1, and Capt-1. Mutual Aid units were Engine and Truck 11, Engine-7,and Engine-8, and Manassas Park unit Wagon-9 responed.