Pre-Engineered Windows - Elevate Your Home with TOSTEM TOSTEM, where flexibility and reliability meet exceptional design for your home. Experience the freedom to tailor your home to your family's needs with TOSTEM products. Our windows, doors, and fences provide satisfaction and beauty for every generation, ensuring a happy and peaceful life for all. Discover the convenience of Pre-Engineered Windows (PEW), a process akin to pre-engineered buildings. Designed and fabricated at the factory, these windows are swiftly assembled on-site using nuts or bolts. Key features include: The entire window is manufactured at the factory, excluding assembly and glazing. Convenient packaging in separate boxes for sash and frame, simplifying logistics and storekeeping. Excellent manufacturing accuracy ensures a seamless installation without mismatch. All hardware is pre-fitted at the factory, reducing on-site work time to a minimum. Transform your home effortlessly with TOSTEM Pre-Engineered Windows. Upgrade today for a harmonious living experience.