Minneapolis Millwork Manufacturers 113 27th Ave NE # L Since 1960 andquot;Quality Specialty Products That Enhance The Homeandquot; has been the emphasis at JJJ Specialty Co. and still is today. We proudly manufacture specialty windows in a variety of shapes and sizes, custom window grilles, and a wide selection of other millwork products. JJJ Specialty Co. is a privately held company providing jobs for the American worker and reliable products for our customers. Our commitment: To bring handcrafted detail to every order. Minneapolis MN Millwork Manufacturers JJJ Specialty Co www.jjjspecialty.com octagon window octagon windows round window round windows oval window oval windows specialty products maly companies jjj specialty octagon window octagon windows round window round windows oval window oval windows specialty products maly companies jjj specialty Business Reviews JJJ Specialty Co Testimonials