The global construction industry is undergoing a paradigm shift towards Net-Zero Energy Buildings (NZEB). Passive House windows have emerged as the cornerstone of this revolution. Unlike traditional fenestration, these windows are engineered to minimize heat transfer, utilizing triple or quadruple glazing, warm-edge spacers, and multi-chambered thermal breaks.
Current global trends indicate a growing demand for OEM Customization. Architects in Europe and North America are no longer satisfied with "off-the-shelf" solutions; they require bespoke profiles that integrate seamlessly with high-tech facades while maintaining a U-factor as low as 0.8W/m²K.
Annual Capacity (SQM)
Avg. U-Factor
Years Tech Lead
High-rise residential projects require AS2047 or NFRC certified aluminum windows that handle extreme wind loads while providing soundproofing against urban noise. Our tilt-turn systems are the preferred choice for these environments.
In sub-zero temperatures, thermal insulation is life-saving. Conversely, in the Middle East, high-performance Low-E coatings prevent solar heat gain. Our factory specializes in climate-specific glass configurations.
Nanjing Spencer Window Co., Ltd. was established in 2013 with a registered capital of RMB 20 million. The company operates a modern production base covering approximately 10,000 square meters. As an integrated enterprise combining research and development, manufacturing, and sales, Spencer specializes in aluminum alloy system doors and windows, offering solutions for both standard and high-end architectural applications.
With an annual production capacity of up to 100,000 square meters, the company’s products are widely used in residential buildings, commercial complexes, and industrial projects. By combining modern design concepts with durable materials and precise engineering, Spencer delivers door and window systems that feature excellent sealing performance, energy efficiency, and long-lasting reliability.
The company places strong emphasis on technological innovation and precision manufacturing. Equipped with advanced production lines and supported by an experienced technical team, Spencer maintains strict quality control throughout every stage of production. From raw material selection to processing and final assembly, each step is carefully managed to ensure high standards in durability, safety, thermal insulation, and soundproofing performance.
Our factory utilizes AI-driven sensing technology to monitor the precision of thermal break insertions and the consistency of EPDM gasket seals, ensuring every Passive House window meets the stringent U-Factor requirements.
Direct access to the world's largest aluminum and glass suppliers allows for rapid prototyping and cost-efficient OEM production without compromising on quality.
Whether it's bespoke AS2047 Australia Standard or specific NFRC ratings for the US, our engineering team can adapt profiles for any market.
Our 10,000 sqm facility ensures that high-volume orders for large-scale real estate developments are delivered on time, every time.
Nanjing Spencer Window Co., Ltd. follows the philosophy of “Quality First, Customer Foremost, Integrity-Based.” The company provides comprehensive services covering consultation, customized design, and after-sales support. By integrating innovation with craftsmanship, Spencer strives to create comfortable, energy-efficient, and aesthetically refined living spaces.
Spencer is committed to continuous innovation and service improvement, aiming to become a trusted global partner in the door and window industry while delivering lasting value to its customers.
Spencer Window
