Hardware purchases depend on load, mounting surface, clearance, and local building requirements. Record exact dimensions and weight, then confirm that brackets, chains, anchors, and fasteners are rated for the intended use. Bell tone and volume should suit the building and neighborhood as well as the parish's liturgical needs.

Professional installation may be appropriate for suspended lamps, exterior bells, heavy fixtures, or electrical components. Ask what hardware is included, what must be sourced locally, and whether finishes are suitable for indoor, outdoor, coastal, or high-humidity conditions. Keep spare consumable parts and the maker's maintenance instructions with parish records.