A Fourth Generation Family Business Delivering High Quality Since 1934. Improve the resale value of your home project. Energy efficient timber windows & doors. Duce is a 4th generation business est 1934. Kind: Bay, Casement, Double Glazed, Double Hung Windows, Energy Efficient, Fixed Glass, Louvres, Sash, Sashless, Sliding. Material: Rosewood. Service: Design, Installation, Made to Order. Style: Colonial, Contemporary, Edwardian, Federation, Heritage, Period, Traditional, Victorian. Brand: Duce. Type: Commercial, Residential. Assurance: Australian Made, Guaranteed, Warranties. Ownership: Australian Owned, Family Owned