The casement + fixed window combination offers the ideal balance between ventilation, natural light, and energy efficiency. The operable casement sash opens outward on precision hinges, providing excellent airflow and easy cleaning from inside the room. Meanwhile, the fixed panel maximizes unobstructed views while maintaining exceptional thermal insulation. Both sections are built with high-quality aluminum or PVC profiles, depending on project requirements, and paired with low-E double glazing to reduce heat loss and improve comfort. Multi-point locking ensures a tight seal against air and water infiltration, making this window highly suitable for energy-efficient buildings. The clean, modern frame lines make it compatible with various architectural styles—from contemporary homes to commercial spaces. KDSBuilding’s casement + fixed window is a versatile solution that enhances visual appeal while delivering long-term performance and durability.

The PVC Fixed Window from Xiamen KDSBuilding is designed to deliver maximum light, energy efficiency, and modern aesthetics. With no operable parts, this window provides a large, clear view of the outdoors while maintaining superior insulation performance. Crafted from high-quality PVC profiles, it resists corrosion, fading, and deformation, making it ideal for long-term use in various climates. The fixed design enhances structural strength and airtightness, effectively preventing water and air infiltration. Combined with double-glazed glass, it ensures excellent thermal insulation and soundproofing, helping reduce energy consumption and maintain indoor comfort. Its clean, minimalist appearance makes it suitable for contemporary homes, offices, and commercial buildings that value both functionality and style. The PVC surface requires minimal maintenance—just occasional cleaning to keep its bright, polished look. Available in multiple sizes, colors, and glass configurations, the KDSBuilding PVC Fixed Window meets international standards such as NFRC and CE, ensuring safety, performance, and sustainability. Whether used as a picture window, decorative feature, or part of a curtain wall system, this fixed window adds elegance, brightness, and energy savings to any architectural space.