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.