At 1556 hours companies to were to dispatched to Company 30's (Hampden) first due at 1200 Windsor Road for a garage fire. Chief 3-30 (Flinn) arrived on location with heavy fire from a garage attached to a 2 story, single family dwelling. Crews from Engine 4-30 (Hampden) and 37 (NSA Mechanicsburg) stretched lines and made an aggressive attack on the fire. Additional resources arrived to assist with extinguishment and overhaul. The fire was knocked down in about 10 minutes and crews were able to prevent extension into the dwelling. Companies on location: 20,27,28,30,31,37, York Co. 69.