Need work done to sagging iron framed door

Does anyone have current info on someone that can do work on a sagging/dragging on file floor, iron framed glass door? It drags across the files and I don't wanted them scraped and ruined. We are in Chapala. TIA

Maybe an iron worker to reshape or rehang the door.

If the door is still 'square', it is the house that has moved, tilting the door's frame. It will need to be removed, and a mason will need to re-shape the opening and re-install the door.