The awning and fixed window combination provides reliable ventilation and superior natural lighting in all weather conditions. The top-hinged awning sash opens outward from the bottom, allowing airflow even during light rain while preventing water intrusion. The accompanying fixed panel maximizes brightness and panoramic views, creating an elegant architectural feature. Made from durable aluminum frames and paired with insulated glass, this system offers strong thermal efficiency and excellent airtightness. Multi-point locks and EPDM seals ensure long-term resistance to wind pressure and moisture. This design is ideal for bedrooms, bathrooms, kitchens, and commercial projects.  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 fixed window is designed to bring maximum natural light outdoor views into any space. As a non-opening structure, it relies on a solid aluminum  frame combined with insulated double glazing to deliver outstanding thermal and sound performance. The slim frame design allows for a larger glass area for both residential and commercial buildings. With sealed construction and multi-layer weatherproofing, fixed windows provide exceptional resistance to water, wind, and air leakage. They can be produced in large custom sizes and ideal for stairwells, living rooms, lobbies, and high-rise facades. series: 55 series thermal break opening style: fixed(non-open) Glass: 5mm+9A+5mm clear tempered glass Certification: NFRC, AAMA, CE, TITLE 24, AS2047 U-Factor  ≤ 0.3 SHGC ≤ 0.23

The aluminum sliding door is designed to bring expansive views, abundant natural light, and effortless daily operation to any residential or commercial project. Built with high-strength aluminum profiles and equipped with precision rollers, this door delivers smooth, quiet, and stable sliding performance even after long-term use. Double-glazed insulating glass and optional thermal-break profiles significantly improve energy efficiency, making indoor spaces more comfortable throughout the year. Its slim frame design complements contemporary architecture, while the wide opening panel provides seamless indoor–outdoor flow, ideal for balconies, patios, and large openings. Weatherstripping and multi-point locking systems enhance security and ensure long-lasting resistance against wind, water, and air infiltration. Tailored sizes, glass options, hardware choices, and color finishes allow architects and homeowners to customize the door to match project requirements. KDSBuilding’s aluminum sliding door represents a perfect balance of durability, aesthetics, and performance, elevating both the functionality and elegance of modern living environments.

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 Fixed Window from Xiamen KDSBuilding is an excellent solution for homeowners and builders seeking maximum light, energy efficiency, and modern simplicity. Designed without any operable parts, this fixed window provides an expansive and uninterrupted view while ensuring outstanding insulation performance. Made from high-grade PVC profiles, the frame resists moisture, corrosion, and UV damage, making it ideal for both residential and commercial applications. The double-glazed glass units enhance thermal insulation, keeping interiors comfortable year-round and significantly reducing energy costs. Its airtight structure prevents dust, water, and noise infiltration, creating a peaceful indoor environment. With clean lines and customizable color options, the PVC Fixed Window blends seamlessly with any architectural style, from minimalist contemporary homes to classic facades. Additionally, it requires minimal maintenance—just occasional cleaning to maintain its clear appearance and durability. Whether used as a picture window, curtain wall element, or combined with operable units, KDSBuilding’s PVC Fixed Window delivers lasting beauty, efficiency, and performance that meet international standards such as NFRC and CE. It’s a perfect choice for modern buildings that value both design and functionality.

Each window is equipped with a corrosion-resistant crank handle, multi-point locking system, and friction hinges for secure, effortless operation. Glazing options include single, double, or triple glass units with Low-E coating, argon gas fill, and laminated or tempered glass for added insulation and security.

An aluminum double-hung window features two sashes that slide vertically, allowing for easy ventilation from the top, bottom, or both. The aluminum frame is durable and resistant to rust, making it ideal for various weather conditions. Additionally, these windows are low-maintenance and offer a sleek, modern aesthetic. They often come with energy-efficient glass options and can be customized with different finishes to complement any architectural style.