The specification discloses a cable (e.g., fiber optic) housing assembly that facilitates securing cables and splices within its interior while providing a convenient work tray to assist a technician when splicing cables above ground level. The housing assembly can be equipped with a grommet and bobbin assembly that secures cables within the interior of the housing. Additionally, modular splice blocks can be configured within the interior of the housing in order to secure cable splices. In aspects, these modular splice blocks can be added as needed in a variety of configurations, including but not limited to, vertical stacking, horizontal back-to-back, or the like. The modular characteristics of the splice blocks enhance the as-needed extensibility of the housing assembly.