When it comes to premium aluminum windows and doors, the right product can transform a building's aesthetics, energy efficiency, and long-term value. As a leading casement window manufacturer with a 100,000 m² production base spanning Foshan and Zhaoqing, ALPES delivers a comprehensive range of system windows and doors engineered to international building standards. In this guide, we walk through our complete aluminum window product range — covering casement, sliding, tilt-and-turn, and sliding door systems — so you can ｓｅｌｅｃｔ the perfect solution for your next project.
Before diving into individual product lines, it is worth understanding what sets ALPES aluminum windows apart from the competition. Every window we produce shares a common foundation of quality materials and precision engineering:
Casement windows are hinged on the side and swing outward, offering full top-to-bottom ventilation and an unobstructed view. They are an excellent choice for bedrooms, living areas, and any space where maximum airflow is desired. As a trusted casement window manufacturer, ALPES offers three distinct outward-opening casement series:
The C120 series is our flagship casement window, featuring a 119mm frame width and a thermal K-value of 1.6. Key highlights include a nail-free rolled press mesh structure for corrosion resistance, a full standard square cavity for superior wind pressure resistance, and an integrated door-and-window with mesh design that allows instant mode switching. Equipped with ROTO transmission boxes and anti-pry lock points, plus a fall rope safety mechanism, the C120 delivers both performance and peace of mind.
The C113 series combines elegant design with robust performance. Its 113mm frame houses a full glue-injection process with integrated glued corner brackets, creating a seamless monolithic structure. A multi-chamber design ensures warm-in-winter, cool-in-summer insulation, while a triple-sealing defense blocks wind, rain, noise, and extreme temperatures. The series uses CMECH hardware — winner of the German Red Dot Design Award — tested to 30,000 operating cycles.
For those seeking a sleek, modern aesthetic, the C116 series delivers with a slim 28mm oblique press line and a 22mm ultra-slim medium mullion that maximizes your field of vision. With a thermal K-value of 1.7, 34mm–44mm multi-chamber insulation strips, and a unified isothermal line design, this series does not compromise on performance. Choose between a baseless 90° handle or a side-mount handle, and upgrade to German Wehag hardware for an extra touch of quality.
Sliding windows glide horizontally along tracks, making them ideal for spaces where outward-swinging windows are impractical — such as balconies, patios, and high-traffic areas. If you are considering sliding window replacement for your project, the TS130 Side Press Window offers a unique blend of sliding convenience and casement-level sealing.
The TS130 reimagines what a sliding window can do. It combines the space-saving benefits of a sliding design with the high-sealing performance of a swing window, thanks to an innovative side-pressure rubber strip seal. The four-sided continuous sealing strip, paired with upper rail frame sealant, achieves casement-level weather resistance. German ROTO hardware for side-pressure windows and doors, 200kg load-bearing pulleys, and an eight-point locking system ensure smooth, secure operation. Available configurations include one fixed + one movable, or middle fixed + two sides movable. Extended functions such as inward-opening sash mesh, integrated glass railing, and anti-theft grilles make this series remarkably versatile.
Tilt and turn windows offer dual operation modes — tilt inward from the top for secure ventilation, or swing fully inward like a casement window for easy cleaning and maximum airflow. This European-style design is growing in popularity worldwide for its versatility and safety features.
The AW90 Passive Window is ALPES's highest-performance window, achieving a remarkable thermal K-value of just 1.3 W/m²·K — well within passive house standards. Its 90mm frame incorporates multi-chamber insulation strips plus insulation sponge, and a dual-matrix eight-layer sealing system provides an unparalleled barrier against heat loss, noise, and weather. With 360° locking points for full-perimeter security, 240-hour salt spray corrosion resistance, and 5,000N shear resistance strength, the AW90 is engineered for the most demanding climates and building standards. Winkhaus hardware with 169 years of German engineering comes standard, with optional C-Slot ROTO hardware available.
The AW113 tilt-and-turn series offers a wider frame profile for projects requiring a more substantial visual presence. Built with the same 6060-T66 aluminum profile quality and precision engineering as all ALPES products, the AW113 delivers reliable tilt-and-turn functionality with excellent thermal performance and security.
While our focus is on windows, no product range overview would be complete without mentioning ALPES's sliding door systems — the perfect complement to our window lineup for creating seamless indoor-outdoor living spaces.
Selecting the right window type depends on your project's specific needs. Here are key factors to consider:
What truly distinguishes ALPES from other aluminum window suppliers is our commitment to end-to-end quality control. From the 6060-T66 aluminum extrusion to the final assembly in our 100,000 m² production facilities, every step is managed in-house. This vertical integration allows us to offer competitive direct-from-factory pricing while maintaining strict quality standards. Whether you are sourcing for a luxury villa in Saudi Arabia, a high-end residential project in Australia, or a commercial development anywhere in the world, ALPES has the product range, technical expertise, and production capacity to deliver on time and to specification.
Ready to explore which ALPES aluminum window system is right for your project? Contact our team today for expert guidance, custom solutions, and competitive pricing direct from our factory in Foshan, China.
