Window Security Grilles | Heavy-Duty Louver Solutions

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Overview of window security grilles

Overview of window security grilles

Since we were founded in 2002, LUYISI Doors & Windows has been a dedicated leader in the system doors and windows industry for over two decades. As an experienced factory, we focus on the research, development, manufacturing and sales of high-quality system doors and windows. With an annual output of over one million square meters and the support of partners worldwide, we ensure that customers can enjoy a high-quality and worry-free experience from placing an order to receiving after-sales service. Our professional design, producing and sales teams are dedicated to providing enthusiastic and considerate services, and adhere to the highest integrity standards, offering customers comprehensive one-stop solutions.
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Advantages of window security grilles

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

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.

Factory Area 20,000 ㎡

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

Excellent Certifications

National certifications: Nfrc and Csa, Energy star

Large-scale Factories

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

window security grilles

1008 System Fixed & Casement Aluminum Window VIEW DETAILS

1008 System Fixed & Casement Aluminum Window

120 System High-Sealing Aluminum Casement Window VIEW DETAILS

120 System High-Sealing Aluminum Casement Window

45 Series Slim Frame Aluminum Interior Sliding Door VIEW DETAILS

45 Series Slim Frame Aluminum Interior Sliding Door

85 Series Aluminum Bottom-Hung Ventilation Window VIEW DETAILS

85 Series Aluminum Bottom-Hung Ventilation Window

140 Series Premium Lift & Slide Door for Balcony VIEW DETAILS

140 Series Premium Lift & Slide Door for Balcony

68 Series Anti-Pinch Aluminum Bi-Fold Patio Door VIEW DETAILS

68 Series Anti-Pinch Aluminum Bi-Fold Patio Door

128 Series Thermal Break Hidden Track Aluminum Sliding Window VIEW DETAILS

128 Series Thermal Break Hidden Track Aluminum Sliding Window

120 Compression-Sealed Sliding Window VIEW DETAILS

120 Compression-Sealed Sliding Window

Window security grilles serve as a robust anti-intrusion barrier for residential, commercial and industrial windows, greatly boosting building safety against break-ins and vandalism. Crafted from thick solid aluminum or galvanized steel bars, these grilles undergo precision welding and reinforced structural treatment to deliver outstanding impact resistance and load-bearing strength. Multiple styles are available, including fixed stationary grilles, removable grilles, retractable folding grilles and decorative patterned grilles to match different facade aesthetics.
The surface is treated with high-adhesion electrostatic powder coating, effectively resisting rust, fading and corrosion even in humid coastal or rainy climates. We support fully customized sizes, bar thickness, spacing, color finishes and cut-out designs to fit casement windows, louver windows, sliding windows and glass ventilation windows seamlessly. For families with children, safety rounded bar edges eliminate scratch hazards, while commercial projects can opt for heavy-duty thickened frames for maximum protection.
These grilles are widely installed on apartment windows, villa bedrooms, storefronts, warehouse openings and school buildings. Easy mounting hardware and detailed installation guides are included for quick fitting. As a professional manufacturer, we provide OEM custom branding and bulk factory wholesale for global distributors, contractors and property developers, balancing reliable security and attractive exterior appearance.

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. High-quality aluminum alloy windows can last 25 years or longer with proper maintenance. Our factory offers a 10-year warranty and reliable after-sales service to ensure long-term performance.
A: 23-25 days after deposit and drawing confirmed
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)
A:500000+ Cases Win the trust of users worldwide Saving Money The more you order, the greater discount 100% Customization All requirements can be met Verified Certified by international standards Saving Time No need to look for suppliers everywhere
A:Several products have obtained certifications from NFRC, Energy Star, CSA, NZS4211, CE. As a result, many products from LUYISI have been recognized by multiple countries and international organizations such as the United States, Canada, Australia, New Zealand, and the European Union. This allows us to offer high-quality window and door products and services to more countries.

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