Handyman

I need a piece of trim put at the top of my dining room wall to hold 3 panels of mirrors in place. The middle panel is coming loose from wall. I had a mirror company out and they said to re-glue would be a nightmare but placing trim would hold the mirrors in place and be a fairly easy fix. So if I could get someone to put up wood trim to hold mirrors in place that look similar to baseboard, that would be ideal