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

This Wooden double hung window is white finished, with double glazing inside filled with Argon gas, the grille design outside the glass make the window suitable to modern and ancient buildings. The wooden profile has better insulation and energy saving performance than any other profiles, with double glazing energy saving performance will be more better. Equipped with air ventilator, can keep air ventilation during the window closed tightly, especially the nights. The hooks make it easier to operate the to open and close, the springs on two sides can hold the panel and keep its smooth operation.

Designed for elegance and efficiency, wooden sliding windows highlight the natural grain and texture of real wood. The sliding structure allows flexible ventilation while maximizing usable space. High-quality timber combined with advanced hardware delivers stability, sound reduction, and long service life. These windows are ideal for projects that value environmental friendliness, comfort, and timeless architectural style. 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

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 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.  series: 60 series PVC opening style: sliding Glass: 5mm+9A+5mm clear tempered glass Certification: NFRC, AAMA, CE, TITLE 24, AS2047 U-Factor  ≤ 0.3 SHGC ≤ 0.23

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。 series: 80 series PVC opening style: Top sliding and bottom fixed Color: Black Glass: 5mm+9A+5mm clear tempered glass Certification: NFRC, AAMA, CE, TITLE 24, AS2047 U-Factor  ≤ 0.3 SHGC ≤ 0.23

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. series: 80 series PVC opening style: sliding Color: Black Glass: 5mm+9A+5mm clear tempered glass Certification: NFRC, AAMA, CE, TITLE 24, AS2047 U-Factor  ≤ 0.3 SHGC ≤ 0.23