Vertical Sliding Windows | Premium Aluminum Systems

Overview of vertical sliding

Overview of vertical sliding

Established in 2002, LUYISI Doors & Windows is a trusted manufacturer with over 20 years of experience in the system doors and windows industry. We specialize in manufacturing and global sales of high-quality system doors and windows, delivering reliable products and professional solutions for residential and commercial projects worldwide.
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Advantages of vertical sliding

We strictly control quality during inspection and shipment. Products undergo multiple checks before shipping to meet customer and international standards.

Strong Manufacturing Capacity

With an annual output of over one million square meters, LUYISI has the capacity to support large-volume orders, customized products, and long-term project supply. Our stable production system helps ensure consistent quality, reliable lead times, and efficient delivery.

Professional One-Stop Service

From product selection and design communication to manufacturing, shipment, and after-sales support, we provide a complete one-stop service experience, helping customers save time, reduce communication costs, and achieve smoother cooperation.

Excellent Certifications

National certifications: Nfrc and Csa, Energy star

Annual Exports 1,000,000 m²

Luyisi exports 1 million square meters annually, showcasing our production strength.

vertical sliding

Our vertical sliding system features a smooth up-and-down gliding design that optimizes space utilization perfectly. Built with premium aluminum components and precision sliding hardware, it moves effortlessly, stably and silently during long-term use. The tight sealing structure effectively isolates wind, rain, noise and dust, creating a comfortable indoor environment. Compatible with windows and door applications, it comes in multiple styles and supports customized dimensions to suit diverse architectural designs. Durable construction and exquisite workmanship guarantee reliable performance and a sleek modern look for your property.

Frequently Asked Questions (FAQ)

Q. Do aluminum alloy windows allow air leakage?

A. High-quality aluminum alloy windows utilize automotive-grade EPDM rubber seals, a material known for its durability and resistance to aging. Combined with a triple-seal structure and optimized isothermal line design, they deliver exceptional airtightness, thermal insulation, and wind pressure resistance, effectively preventing air infiltration.
A. High-quality aluminum alloy windows featuring thermal break technology are designed as complete system windows. This structure effectively blocks heat transfer, providing better thermal insulation, sound insulation, and durability than standard aluminum windows. Insulated glass and optional foam-filled profiles can further improve energy efficiency and indoor comfort.
A.Both materials have distinct advantages: PVC windows offer excellent thermal insulation and soundproofing due to their low thermal conductivity. They are commonly used in residential buildings and are suitable for complex designs such as curved or custom shapes. Aluminum alloy windows offer superior structural stability and resistance to deformation. They perform exceptionally well in high-rise buildings, large openings, and harsh environments like coastal areas with high humidity or salt spray corrosion. The choice of material depends on project requirements, climate conditions, and personal preference.
A: Yes,our products meet NFRC,AS2047,CSA and AAMA standard for now and also we will make our product extra tested and certificated if you required.
A: 23-25 days after deposit and drawing confirmed

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