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. Its precision-engineered frame features advanced weather seals that enhance air and water tightness, ensuring long-term durability even in extreme climates. With powder-coated or anodized surface finishes available in a wide range of colors, it achieves both strength and style. Designed to meet international standards such as NFRC and CE, KDSBuilding’s aluminum double hung and tilt window is ideal for high-end apartments, villas, and public buildings that demand superior thermal insulation, low maintenance, and contemporary aesthetics. This window delivers a perfect blend of practicality and sophistication, offering homeowners lasting comfort and performance with modern architectural appeal.

This elegant PVC 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. This window is suitable for classic villas, modern homes, hotels, and architectural projects where both performance and appearance matter. With customizable colors, glass options, and hardware selections, it can be tailored to complement any design style. This PVC arched sliding window truly reflects a combination of beauty, performance, and practicality—an ideal upgrade for energy-saving and elegant building fenestration solutions.

PVC sliding window is a modern and practical choice for both residential and commercial spaces. Designed with smooth sliding sashes, it operates effortlessly on durable tracks, saving space compared to traditional hinged windows. Made from high-quality PVC profiles, it offers excellent thermal insulation, weather resistance, and noise reduction. The sleek design with narrow sightlines maximizes natural light and provides a contemporary look. PVC sliding windows are low-maintenance, resistant to corrosion, and easy to clean, making them ideal for long-term use. Optional features include double glazing, insect screens, and security locks, ensuring comfort, safety, and energy efficiency in any environment.

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.

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.

The PVC single hung window is a classic and energy-efficient design ideal for both residential and commercial buildings. It features a fixed upper sash and a vertically sliding lower sash, allowing smooth operation and ventilation. Made from durable PVC material, it offers excellent thermal insulation, weather resistance, and low maintenance. The window can be customized with double or triple glazing, Low-E glass, and insect screens. Its secure locking mechanism enhances safety, while the simple design suits a variety of architectural styles. Cost-effective and practical, the PVC single hung window is a smart choice for long-term performance and visual appeal.

PVC double hung windows offer a timeless aesthetic combined with advanced performance and functionality. Designed to suit both traditional and modern architecture, these windows feature two operable sashes that slide vertically, allowing for flexible ventilation from the top, bottom, or both. Engineered using premium uPVC profiles reinforced with galvanized steel, our double hung windows provide exceptional strength, durability, and resistance to warping, cracking, and corrosion. The multi-chambered frame enhances thermal insulation and energy efficiency, helping reduce heating and cooling costs in all climate zones. Each sash is equipped with counterbalance systems or spiral balances for smooth, quiet operation and ease of cleaning, as both sashes can tilt inward. Available with single, double, or triple glazing options, including Low-E and argon-filled IGUs, the window ensures superior sound insulation and comfort. Our PVC double hung windows come in a variety of colors and finishes, including white, grey, black, and realistic woodgrain laminates. Custom sizes and grille designs are also available to meet specific architectural preferences. Ideal for residential homes, townhouses, and renovation projects, KDSBuilding’s double hung windows deliver a perfect combination of energy efficiency, low maintenance, classic design, and long-lasting value across global markets.

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. Xiamen KDSBuilding’s PVC sliding windows are produced with advanced extrusion and welding techniques, guaranteeing tight sealing and waterproof performance. All windows comply with international standards and can be tailored to meet NFRC and CE certifications. Whether used in apartments, villas, or commercial buildings, our PVC sliding windows combine beauty, comfort, and value — making them a top choice for modern construction projects across global markets.