Check for broken or broken bricks or flue liners. (Vertical cracking within the liner is a confident indication of a preceding flue fire and is particularly a serious problem that should need to have repair.) Juxtapose the molding with a Daring tile surround for example this black and white chevron https://chimneyrepair51480.blog4youth.com/28612271/considerations-to-know-about-wall-fireplace