Founded in 1988, family owned Manko Window Systems has grown from 5000 square feet to over 250,000 square feet of state-of-the-art manufacturing space.  Manko has expanded beyond its primary corporate office and plant in Manhattan Kansas with additional manufacturing locations in Denver Colorado and Des Moines Iowa.  Manko currently produces a full line of insulated glass, commercial windows, curtain wall, storefront, entrances and other complimentary glass and aluminum products.  
“Quality, service and a dedication to operational excellence have all contributed to making Manko the foremost commercial window supplier serving the Midwestern region.” (Quanex Building Products, 2011)