Doors and windows have long ceased to be mere components for lighting and wind protection, but have become core configurations related to residential safety, sound insulation and comfort, energy conservation and consumption reduction, as well as home appearance. Whether it's for villas, large apartments, renovations of old houses, or window replacements for fully furnished homes, the choice of customized doors and windows in Shanghai directly determines the quality of life for the next decade or so. Among numerous brands, Lens system doors and windows, with its hardcore strength and local services, has become the preferred brand among homeowners in Shanghai.

Joysland Doors and Windows (Shanghai) Co.,Limited, established in 2013, is the sole authorized brand operation center and comprehensive product processing base for Lens Doors and Windows Curtain Wall Systems Ltd. in China. Leveraging cutting-edge European system technology and tailored to the local climate and living habits of Shanghai, Lens has developed a full range of system door and window solutions encompassing passive energy conservation, fresh oxygen breathing, inward tilt and sliding, ultra-narrow and minimalist designs, steel-inspired retro styles, and intelligent electric systems, truly offering one-stop high-end customization.
As a large-scale local door and window enterprise in Shanghai, Lan-system boasts a 15,000-square-meter standardized production base located in the G60 Science and Technology Innovation Corridor in Songjiang. Equipped with three advanced CNC precision machining production lines, including distributed production lines and intelligent dual-workstation production lines, coupled with a 3,000-square-meter profile three-dimensional warehouse and a professional quality inspection system, Lan-system ensures that every door and window meets European standards and domestic high-level performance requirements. In 2026, the Joysland Doors and Windows (North) Intelligent Processing Base was officially completed, with annual production capacity increased to 300,000 square meters and order delivery time shortened to less than 15 days, providing more efficient delivery guarantees for customers in Shanghai and across the country.
In terms of product performance, Lens system doors and windows stand out with their advantages. The passive doors and windows boast a low K value of 0.79, achieving a 30%–50% reduction in energy consumption, significantly saving electricity and gas bills over long-term use. With a sound insulation performance of 35–45dB, they effectively block external noise from roads, elevated highways, airports, etc., creating a quiet environment for bedrooms and study rooms. Additionally, the products utilize 6060 T66 ultra-high-precision aluminum, imported brand hardware, multi-cavity PA66 insulation strips, and EPDM sealing strips, combined with pin-injection corner assembly technology. The air tightness, water tightness, and wind pressure resistance of the entire window meet national high-level standards, making them safe for use in high-rise residential buildings and coastal typhoon areas.
In response to the diverse needs of households, Lens provides customized solutions for all scenarios: for high-rise residences, we recommend inward-tilting and sliding windows as well as inward-opening and inward-tilting windows, which occupy no space and provide safety against falls; for noise-prone rooms facing the street, we recommend high-performance soundproof windows with three panes and two chambers, which provide silence as soon as the window is closed; for healthy households, the C5 Oxygen-Breathing Window is the first choice, which achieves a three-in-one function of ventilation, filtration, and heat recovery without opening the window; for villas and large flat-type residences, we recommend ultra-narrow-edge doors and windows, enhanced sliding doors, and panoramic sunrooms to enhance the sense of spatial transparency and overall grade.
What reassures homeowners even more is that Lan-system adheres to a closed-loop service model featuring original factory manufacturing, installation, supervision, and after-sales service. From free on-site measurement, 3D effect design, precise factory production, to professional team installation, supervision and acceptance, and lifelong maintenance, the entire process is outsourced and branded, thoroughly solving common industry issues such as water leakage, air leakage, and after-sales prevarication. Currently, Lan-system has multiple experience centers in Shanghai, including a 520㎡ in-depth experience store at the headquarters and a Xiyingmen concept store on Yishan Road. Customers can experience sound insulation, heat insulation, and opening feel on site, intuitively feeling the product quality.
As a high-tech enterprise, specialized and innovative company, and one of the top ten brands in China's door and window industry, Lan-system boasts dozens of national patented technologies. Its products have obtained international authoritative certifications such as CE, INTERTEK, and NFRC. Not only does it serve high-end homeowners in Shanghai, but its products are also exported to the Middle East, North America, the United Kingdom, and other countries and regions, with its quality recognized by markets both domestically and internationally.
When it comes to customizing doors and windows in Shanghai, choice is more important than effort. Lance System Doors and Windows, leveraging European technology, operating from a local factory, offering full-chain services, and ensuring an ultra-long lifespan, provides Shanghai households with a high-quality door and window experience that is quiet, safe, energy-efficient, and aesthetically pleasing. For customizing doors and windows in Shanghai, choose Lance. With one installation, you can enjoy peace of mind for 25 years.
