Sash Window Manufacturer | Premium System Windows Since 2002

Overview of sash window

Overview of sash window

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 sash window

We are committed to manufacturing the most durable, energy-efficient, and innovative window products to meet the evolving market demands.

Large-scale Factories

Equipped with large-scale production equipment, offering fast production speeds

Factory Area 20,000 ㎡

With over 20,000 square meters, Luyisi efficiently handles high-volume production.

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.

Experienced and Reliable Team

Our design, production, and sales teams work closely together to provide practical solutions, responsive service, and detailed follow-up throughout every stage of the order. With strong industry experience and a customer-focused approach, we are committed to creating long-term value for every partner.

sash window

Sash windows feature a classic traditional design with smooth vertical sliding operation, a timeless choice for heritage buildings, villas and retro-style residences. Crafted with sturdy frames and high-quality glass, they deliver reliable wind resistance, sound insulation and thermal performance. The well-fitted structure ensures excellent airtightness and water tightness to resist harsh outdoor conditions. Available in diverse frame materials, colors and decorative details, these windows perfectly match classic and vintage architectural styles. Durable, elegant and practical, sash windows retain traditional charm while offering comfortable daily use.

Frequently Asked Questions (FAQ)

Q. Are aluminum alloy windows energy efficient?

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. Our aluminum alloy doors feature certified multi-point locking systems and reinforced hardware to enhance security and stability. When paired with tempered glass or laminated safety glass, they provide reliable protection for both residential and commercial applications.
A: We offer installation video guidance or send engineers to provide on-site guidance
A: The price is based on buyer's specific requirement,so please provide below information to help us quote to you. (1)Project drawings or product schedule (2) Frame Color: Type of glass an thickness(Single or double or laminated or others) and color(Clear,tintedreflective,Low-E or others,with Argon or without)

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