A system for providing siding to a building is disclosed. The system utilizes components which have their own brackets with attachment flanges in order to connect directly to an exterior wall of the building. The brackets contain their own integrated water control systems, which co-act with those of other components to control and direct water into vertical channels and out from behind the siding system. These flanges double as self-contained flashing. In all the system presents a roof-to-foundation siding system that is self-contained and fully transitional from one piece to another.