A wall has a framed opening primarily for a window. A window unit is installed in the framed opening. A decorative unit is formed or preassembled from moldings and jambs and is thereafter installed into the opening to finish the opening and provide structure to receive coverings like a blind or a shutter. The decorative unit has a recess formed along the interior of the moldings which is sized to receive window blinds, shutters or window shades. Springs or sealing members are positioned between the molding and the perimeter of the installed window or door unit to seal and spring load the jambs between the unit and the molding. Clips and brackets may be used to facilitate preassembly and installation. The molding may be in two pieces with a finish piece that snaps onto or over brackets to secure the molding without need for more permanent means to affix in place.
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