Profile: Natiowide Wood Windows and Doors Ltd produces box sash , casement windows and doors. We specialize in pre-glazed box sash windows , whether double or single glazed. We also produce casement windows , doors and staircases. Our single glazed casement windows are made from the joinery grade timber. We use european redwood that has been pressure vacuum treated with preservatives and hardwood cills. After pressure treatment with fungicides and insecticides we prime windows with an undercoat primer. We can also finish the single glazed casement windows in gloss or satin paint finish for a perfect factory finish for the casements. We manufacture all types of traditional casement window, sliding sash windows, hardwood doors, timber staircases and double glazed box sash windows.