Name: Window World Of Utah- Spanish Fork. Descripton: Window World of Utahis a family run licensee of Window World Inc. Owned and operated by Kathy andDoug Llewellyn, we are Utah's leading window replacement company! To betterserve our replacement window customers, we have 2 locations, in Salt Lake Cityand Spanish Fork, serving the great state of Utah. Our objective is to provideyou with the best vinyl replacement windows, doors, and vinyl siding at thelowest possible price.