The Aluminum Double Hung and Tilt Window by Xiamen KDSBuilding features a refined appearance, user-friendly operation, and superior thermal insulation, making it an ideal choice for contemporary residential and commercial buildings. Crafted from premium thermal break aluminum profiles and fitted with double-glazed insulated glass, it delivers excellent energy efficiency, effective soundproofing, and enhanced resistance to condensation. Its double-hung design allows both the upper and lower sashes to move vertically, providing versatile ventilation options, while the tilt-in function makes interior cleaning easier and allows for controlled, comfortable airflow. series: 108 series thermal break opening style: Double Hung and Inward Tilt Glass: 6mm+12A+6mm clear tempered glass Color: white (customized Certification: NFRC, AAMA, CE, TITLE 24, AS2047 U-Factor  ≤ 0.3 SHGC ≤ 0.23

108 Series Aluminum Thermal Break Double Hung Window Combining classic design aesthetics with excellent thermal insulation and outstanding reliability, this product has earned the favor of customers both in China and around the world. Outer removable window screen can make whole or half, and the window screen also can vertical sliding, prevent the insects when we need to ventilation series: 108 series thermal break opening style: Double Hung and Inward Tilt Glass:6mm+12A+6mm clear tempered glass Color: white (customized) Certification: NFRC, AAMA, CE, TITLE 24, AS2047 U-Factor  ≤ 0.3 SHGC ≤ 0.23

wooden single hung window with double glazing and decorative grille design combines classic aesthetics with modern performance. Crafted from high-quality timber, it offers natural warmth and timeless appeal, while the insulated double-glazed glass enhances thermal efficiency and sound reduction. The fixed upper sash and smoothly operating lower sash provide reliable ventilation and ease of use. Elegant grille patterns add architectural character, making this window an ideal choice for traditional and upscale residential projects. series: Wooden Profile Window opening style: Single Hung Glass: 5mm+9A+5mm clear tempered glass Grille Design: Yes Color: white Certification: NFRC, AAMA, CE, TITLE 24, AS2047 U-Factor  ≤ 0.3 SHGC ≤ 0.23

The Aluminum Double Hung and Tilt Window from Xiamen KDSBuilding combines elegant design, smooth functionality, and outstanding thermal performance for modern residential and commercial projects. Manufactured with high-quality thermal break aluminum profiles and double-glazed insulated glass units, this window ensures excellent energy efficiency, sound insulation, and condensation resistance. The double-hung mechanism allows both the upper and lower sashes to slide vertically for flexible ventilation, while the tilt function provides easy inward tilting for convenient cleaning and secure airflow control. series: 83 series thermal break opening style: Double Hung and Inward Tilt Glass: 5mm+9A+5mm clear tempered glass Color: white Certification: NFRC, AAMA, CE, TITLE 24, AS2047 U-Factor  ≤ 0.3 SHGC ≤ 0.23

This elegant PVC single hung window features a distinctive arched top design combined with a practical vertical sliding sash system, making it a perfect balance of architectural aesthetics and modern functionality. Manufactured using high-quality PVC profiles, it offers superior durability, weather resistance, and excellent thermal insulation performance. Unlike traditional wood windows, this PVC design is maintenance-free, resistant to moisture, corrosion, and warping—ensuring a long service life even in harsh climates. The upper arched fixed glass panel allows abundant natural light to enter while adding a stylish visual appeal, making it ideal for both residential and commercial applications. The lower operable sash ensures smooth vertical sliding with secure locking hardware, providing reliable ventilation and user convenience. The double-glazed glass option enhances energy efficiency by reducing heat transfer and noise, meeting high-performance building standards.  series: 82 series PVC opening style: Single Hung Glass: 3mm+12A+3mm clear tempered glass Certification: NFRC, AAMA, CE, TITLE 24, AS2047 U-Factor  ≤ 0.3 SHGC ≤ 0.21

Aluminum casement and fixed window with 55 series thermal break aluminum profile, good at ventilation and have nice view. with double glass options, it can reduce energy lose and keep the house cooler in summer and warmer in winter. And also good at sound proof, can reduce noise effectively, create and quit environment for you. series: 55 series thermal break glazing: 5mm+9A+5mm clear tempered U factor: lower than 0.3 SHGC: lower than 0.23

PVC sliding windows offer a perfect blend of modern design, energy efficiency, and long-lasting durability. Crafted using high-quality uPVC profiles and reinforced with galvanized steel for structural strength, these windows are ideal for both residential and commercial buildings seeking practical and stylish solutions. Our PVC sliding windows feature a horizontal sash movement, ensuring effortless operation and space-saving benefits. The multi-chambered frame enhances insulation, helping reduce noise and energy loss, making them suitable for varying climates. With options for single, double, or triple glazing and Low-E or tempered glass, our windows can be customized to meet different thermal and acoustic requirements. A wide selection of colors, finishes, and hardware options are available, including woodgrain effects and security locks. The smooth-glide rollers and durable tracks ensure consistent, long-term performance with minimal maintenance. series: 65 series PVC opening style: Top sliding and bottom fixed Color: White Glass: 5mm+9A+5mm clear tempered glass Certification: NFRC, AAMA, CE, TITLE 24, AS2047 U-Factor  ≤ 0.3 SHGC ≤ 0.23

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.