For over 75 years, the world's premier buildings have relied on Krieger Specialty Products for custom doors and windows that accentuate interior design while quietly operating as high performance sound barriers, security armor, radio frequency shields and more. Every Krieger door and window is manufactured to the size, style and finish requested.
Optimum Window Mfg. Corp. established in 1986, has made its mark in the window industry as the largest and most diversified manufacturer of Fire Rated windows in the United States.
Total Door™ is your solution for the replacement of older doors, renovation projects, and new construction. Total Doors reduce maintenance and offer exceptional security and abuse resistance by using a full height, semi-concealed hinge and a full height locking channel in a system that comes fully assembled from the factory. Total Doors are available in fire ratings up to 3 hours and sizes up to 8’- 4 3/8”x10’ and are easily installed in any new or existing frame. Also available is Storm Sentry™ - our hurricane rated door. A local, authorized distributor is the only contact you need for ordering, installation and service.