The Georgetown Fire Co., Inc. was dispatched along with mutual aide to assist Sta. 83 with a structure fire. While units were enroute they were advised the fire was advancing into an exposure building. Eng. 77-2 arrived on scene with a storage building involved. Eng. 2's crew put an 1 3/4" line in service and checked the exposure building to find only heat/smoke damage to the exterior. Crews from 83 assisted with ventilation, overhaul, and suppled Eng. 77-2. Scene was turned over to FM-10 and units returned.