Granite & Quartz Kitchen Countertops | Lexmar USA Lexmar, kitchen solutions, bath solutions, countertops, granite, solid surface, pittsburgh LexmarUSA specializes in the fabrication and installation of custom kitchen countertops. We have a wide variety of countertops available including granite, marble, solid surface quartz and large format porcelain tile. We will cut and design your countertops to fit your kitchen or bathroom. Call for a free estimate.