The process of re-plating chrome trim is one of the most expensive parts of a concours restoration and one of the most necessary. Worn, pitted, or peeling chrome cannot be polished back to quality — the base metal is the issue, not the surface.

The re-plating process: the old chrome is stripped to bare metal, the metal is cleaned, filled if necessary with copper plate, polished, nickel plated, and finally chrome plated. The quality of the finished chrome depends on the quality of the copper and nickel layers, not just the chrome.

A quality plater will fill pits in the base metal before plating. A poor plater will plate over them, producing chrome that looks acceptable under low light and shows every flaw in bright sunlight. Get references. Look at examples of their work on similar trim.