Aluminum  tilt and turn window offers two convenient opening modes tilting inward from the top for gentle ventilation or swinging fully inward like a casement for maximum airflow and easy cleaning. This dual-function design makes it one of the most versatile window systems for modern homes and commercial buildings. Built with durable aluminum  profiles and insulated glass units, the tilt and turn system provides excellent thermal performance, noise reduction, and security. Multi-point locking ensures strong sealing and stability, even in high-rise applications or harsh weather conditions. Ideal for bedrooms, living rooms, hotels, and offices, the window enhances comfort while maintaining a clean, contemporary appearance. series: 55 series thermal break opening style: lift and sliding Glass: 5mm+9A+5mm clear tempered glass Certification: NFRC, AAMA, CE, TITLE 24, AS2047 U-Factor  ≤ 0.3 SHGC ≤ 0.23

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 Sliding Window from Xiamen KDSBuilding is designed to combine elegant style with outstanding functionality, making it a perfect solution for modern homes, offices, and commercial spaces. Built from premium-grade PVC profiles, this window offers superior durability, corrosion resistance, and excellent insulation performance. The horizontally sliding sashes operate smoothly on precision-engineered rollers, providing effortless movement and space-saving convenience—ideal for areas where swing windows are impractical. Featuring double-glazed glass and multi-chamber PVC frame construction, it delivers exceptional thermal insulation and soundproofing, helping to reduce energy costs and create a quieter indoor environment. The airtight sealing design prevents air, water, and dust infiltration, ensuring comfort in all weather conditions. With a clean and modern look, the PVC Sliding Window is available in multiple colors and finishes to match different architectural styles. Easy to clean and requiring minimal maintenance, it remains beautiful and functional for years. Certified under NFRC and CE standards, KDSBuilding’s PVC Sliding Window provides a high-quality balance of durability, efficiency, and aesthetic appeal, making it an excellent choice for any building that values both practicality and modern design.

The PVC Single Hung Window from Xiamen KDSBuilding combines traditional design with modern innovation to create a window that is both functional and visually appealing. Featuring a vertically sliding lower sash and a fixed upper sash, this design offers smooth operation, efficient ventilation, and enhanced energy performance. Constructed from high-quality PVC profiles, the window provides excellent resistance to corrosion, moisture, and UV radiation, making it durable and low-maintenance in any climate. The double-glazed glass and multi-chamber frame design deliver superior insulation, helping to reduce heat transfer and noise infiltration while maintaining comfortable indoor temperatures year-round. Equipped with secure locking mechanisms and airtight sealing, it effectively prevents water and air leakage, ensuring lasting performance and safety. Its clean lines and timeless proportions make it suitable for a wide range of architectural styles, from modern apartments to classic homes. Certified by NFRC and CE, KDSBuilding’s PVC Single Hung Window meets international standards for quality, efficiency, and durability. With easy cleaning, elegant appearance, and reliable functionality, it is an excellent choice for homeowners and builders seeking a cost-effective, energy-efficient, and aesthetically pleasing window solution.

The PVC Hand Crank Casement Window from Xiamen KDSBuilding delivers exceptional performance, style, and user convenience for today’s architectural needs. Designed to open outward with a smooth and durable hand crank system, this window allows precise control of ventilation and easy operation, even in large or hard-to-reach spaces. Made from high-quality PVC profiles, it offers superior resistance to corrosion, moisture, and UV exposure, ensuring long-lasting durability with minimal maintenance. The multi-chamber frame design, combined with double-glazed glass, provides outstanding energy efficiency and sound insulation, keeping indoor spaces comfortable, quiet, and cost-effective year-round. The window’s airtight sealing and multi-point locking system effectively prevent air and water leakage, improving both security and insulation. With a clean, modern appearance and customizable color options, the PVC Hand Crank Casement Window complements a wide range of architectural styles—from residential homes to commercial buildings. Certified by NFRC and CE, it meets global standards for quality and performance. Whether installed as a single unit or combined with fixed or awning windows, KDSBuilding’s PVC Hand Crank Casement Window offers a reliable, elegant, and energy-efficient solution that enhances both comfort and aesthetics.

The PVC Double Hung Window from Xiamen KDSBuilding is designed to provide versatility, comfort, and durability in one elegant package. Both the upper and lower sashes can slide vertically, allowing flexible ventilation options while maintaining excellent energy performance. Crafted from premium PVC profiles, this window offers exceptional resistance to corrosion, fading, and weathering, ensuring long-term durability with minimal maintenance. The double-glazed glass and multi-chamber frame design deliver outstanding thermal insulation and sound reduction, keeping interiors comfortable and quiet all year round. Each sash is counterbalanced for smooth, effortless operation, and both can tilt inward for easy cleaning from inside the room—an ideal feature for multi-story buildings. With airtight sealing and advanced locking systems, the PVC Double Hung Window prevents air and water leakage, enhancing energy efficiency and security. Available in various colors and finishes, including classic white and woodgrain textures, it perfectly complements diverse architectural styles. Certified under NFRC and CE standards, KDSBuilding’s PVC Double Hung Window combines modern functionality with timeless design, making it a preferred choice for homeowners, architects, and developers seeking reliable, attractive, and eco-friendly window solutions.

The PVC Casement Door (White Color Profile) from Xiamen KDSBuilding combines timeless elegance with advanced performance, making it a perfect addition to contemporary and traditional spaces alike. Crafted from high-quality white PVC profiles, this door offers a clean, bright appearance that complements any interior or exterior setting. Its robust frame structure and multi-chamber design provide excellent insulation, reducing energy loss and maintaining comfortable indoor temperatures throughout the year. The door features precision-engineered hinges that allow smooth outward or inward opening, ensuring easy operation and maximum ventilation. The double-glazed glass enhances soundproofing and thermal efficiency while providing clear visibility and natural light. Designed with airtight sealing technology, it effectively prevents water, wind, and dust infiltration, even under harsh weather conditions. The white PVC surface is UV-resistant, corrosion-proof, and requires minimal maintenance, retaining its fresh, polished look over time. Complying with international standards such as NFRC and CE, KDSBuilding’s PVC Casement Door delivers long-lasting durability, safety, and energy savings. Whether used for balconies, patios, or main entrances, this elegant white door adds value, comfort, and sophistication to any living or commercial environment.