This upgraded aluminum casement and fixed window series is suitable for all commercial and residential buildings. 55 series aluminum thermal break profile can provide excellent performance and good insulation. double tempered clear glazing design can lower the energy saving performance and can provide good sight view. casement opening can offer good ventilation and fixed part can provide us safety while their have children. series: 55 series thermal break glazing: 5mm+9A+5mm clear tempered U factor: lower than 0.3 SHGC: lower than 0.23

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 Top Sliding + Bottom Fixed Window from Xiamen KDSBuilding offers a perfect balance between functionality, visibility, and energy efficiency. This unique dual-structure design features a top sliding sash for ventilation and a bottom fixed panel for unobstructed outdoor views and enhanced insulation. Crafted from premium PVC profiles, the window provides outstanding durability, corrosion resistance, and weatherproof performance. The top sliding sash glides smoothly on high-quality rollers, ensuring easy operation without occupying interior or exterior space. The bottom fixed section, fitted with double-glazed glass, enhances energy savings and noise reduction, maintaining a comfortable indoor environment all year round. With precision-engineered airtight seals, the window effectively blocks wind, rain, and dust while maintaining superior thermal insulation. Available in various finishes and glass options, it complements modern, traditional, and commercial building designs. KDSBuilding’s PVC Top Sliding + Bottom Fixed Window meets international standards like NFRC and CE, reflecting the company’s commitment to quality and sustainability. Ideal for apartments, offices, and residential homes, this window delivers a refined appearance, practical ventilation, and long-lasting performance — a smart choice for modern architecture seeking both elegance and efficiency.

The PVC Sliding Window from Xiamen KDSBuilding combines elegant design with superior performance, making it an ideal choice for modern homes, apartments, and commercial spaces. Engineered with high-quality PVC profiles, this window offers excellent durability, weather resistance, and energy efficiency. Its horizontal sliding mechanism allows smooth and effortless operation, saving space while providing excellent ventilation and wide views. The multi-chamber PVC frame and double-glazed glass work together to enhance thermal and sound insulation, ensuring a quiet and comfortable indoor environment while reducing energy costs. The airtight sealing design prevents water and dust intrusion, even under extreme weather conditions. KDSBuilding’s PVC Sliding Window is available in a variety of colors and finishes to complement diverse architectural styles. It also features corrosion-free hardware and low maintenance requirements, maintaining a fresh appearance for years. Ideal for both residential and commercial projects, this sliding window offers a practical yet stylish solution that balances function and aesthetics. Certified by international standards such as NFRC and CE, KDSBuilding’s PVC Sliding Window is a long-lasting investment in comfort, safety, and modern design excellence.

KDSbuilding`s UPVC double hung window produced with advanced technology, good quality material and good quality glass. Our products are customized, color, style and other. The fiberglass or stainless fiberglass screen are easy to install and clean.

PVC accordion folding doors are perfect for high-humidity areas such as bathrooms and kitchens. Made from moisture-resistant PVC, they won’t warp, crack, or swell like wood, ensuring long-lasting durability. Their foldable design saves space in tight interiors while offering privacy when needed. Easy to clean with a simple wipe, they are ideal for homes, hotels, or rental units where low maintenance is a priority. Their modern appearance, available in various textures and colors, blends well with ceramic tiles, countertops, and cabinets. These doors offer a budget-friendly, functional, and hygienic solution for wet-area separation in residential or commercial spaces.

The PVC tilt and turn window epitomizes versatility and modern performance in one sleek package. Engineered from premium, internally reinforced PVC profiles, it offers exceptional thermal insulation and noise reduction, making it ideal for both residential and commercial projects. Its dual‑function mechanism allows the sash to tilt inward for secure ventilation or swing fully open for easy cleaning and unobstructed egress. A robust multi‑point locking system enhances security, while high‑performance gaskets ensure superb airtightness and weather resistance. Available in a range of glazing options, finishes, and hardware styles, the PVC tilt and turn window combines practicality, safety, and aesthetic flexibility for demanding building standards.

Our newly designed aluminum system window offers a perfect combination of modern aesthetics, structural strength, and advanced thermal performance. Engineered with a high-quality aluminum profile and precision thermal break technology, this window system delivers exceptional energy efficiency, noise reduction, and weather resistance—ideal for both residential and commercial applications. With slim sightlines, customizable finishes, and flexible opening styles such as casement, sliding, tilt-turn, and fixed configurations, it enhances natural light while maintaining security and insulation. Whether you're aiming for a contemporary façade or a minimalist interior look, this aluminum window system provides a durable, low-maintenance, and architecturally elegant solution that meets international performance standards.