Top quality and eco-friendly uPVC Casement Windows in India. Duroplast offers High Quality Casement Windows in various designs i.e. Fixed, Top Hung & Side Hung . The most popular style of windows used in India is outward open able Window. We can open the casement window outward or inward. Casement Windows offer best ventilation since they open outward - almost 85° and ensure complete sealing from dust, noise and other pollutants. Multi-chamber design of the profile reduces the transfer of the heat thus saves energy. All the casement windows are steel reinforced for added strength. The multi-locking system ensures better security & safety.