As a leading casement window manufacturer based in Foshan, China, ALPES has built a global reputation for delivering premium aluminum system windows and doors to residential and commercial projects around the world. With a 100,000 m² manufacturing footprint spanning two production centers in Foshan and Zhaoqing, ALPES combines advanced engineering, rigorous quality control, and direct-from-factory pricing to serve clients across the Middle East, Australia, Europe, and beyond.
Overseas builders, developers, and architects turn to ALPES for three key reasons: uncompromising material standards, a comprehensive product portfolio, and a deep understanding of international building codes. Every window and door system is engineered with 6060-T66 grade aluminum profiles — ranging from 1.8mm to 2.5mm in thickness — meeting and often exceeding China's new national standards. This commitment to structural integrity means ALPES products handle coastal wind loads, extreme temperature swings, and long-term daily use with confidence.
ALPES also partners exclusively with top-tier European hardware brands — including ROTO, Winkhaus, CMECH, and Wehag — ensuring smooth operation, robust security, and extended service life. Hardware components are tested to 30,000+ opening cycles, giving project owners peace of mind for decades of reliable performance.
ALPES offers one of the most complete aluminum window and door catalogs in the industry, allowing clients to source every opening type from a single supplier. This simplifies coordination, ensures consistent aesthetics, and streamlines after-sales support.
ALPES casement windows combine timeless design with cutting-edge thermal performance. The C120 Outward Opening System Window features a nail-free rolled press mesh structure and full standard square cavity design for superior wind pressure resistance. The C116 model offers an ultra-slim 22mm central mullion for maximized glass area, paired with 34mm–44mm multi-chamber PA66GF25 insulation strips and triple sealing with seamless welded corners. All casement window systems use high-strength corner reinforcement with injection-molded structural adhesive for a truly monolithic frame structure.
For projects that demand large opening areas without compromising interior space, the TS130 Side Press Window redefines what sliding windows can achieve. It merges the space-saving advantages of sliding design with the high-sealing performance normally found only in casement systems — thanks to a side-pressure rubber strip seal and German ROTO side-pressure hardware. The eight-point locking system and 200kg load-bearing pulleys ensure smooth, secure operation even for oversized panels. As a trusted aluminum sliding window supplier, ALPES delivers both performance and aesthetic flexibility.
The flagship AW90 Passive Window is ALPES's answer to the world's most demanding energy efficiency standards. With a thermal K-value as low as 1.3, this inward-opening tilt-and-turn system features a dual-matrix eight-layer sealing system, full injection adhesive process throughout the frame, mullion, glass sash, and screen, and 360° locking point distribution for full-perimeter security. Winkhaus hardware — drawing on 169 years of German engineering heritage — comes standard, with optional C-Slot ROTO hardware available for specific project requirements.
ALPES sliding door systems are engineered for grand-scale openings. The SL155 Thermal Break Sliding Door features a four-track 155mm frame with 2.2mm–2.5mm profile thickness, a single-panel double-rail self-balancing pulley system with 20 wheels and 400kg load capacity, and single sash dimensions up to 2800mm wide by 2600mm high — delivering an opening area of up to 7.5 square meters. For ultra-slim aesthetics, the SL126/182(75) model offers a 75mm narrow edge design with a patented 38mm extreme slim frame, paired with 27A super-large insulating glass filled with inert gas.
Every ALPES system is built around a multi-chamber PA66GF25 thermal break design that effectively blocks heat transfer through the aluminum profile. Combined with triple-sealing defenses — where the glass centerline, thermal break strip, and equal-pressure sealing strip align on the same axis — ALPES windows achieve exceptional thermal insulation, keeping interiors warm in winter and cool in summer.
| Product Series | Profile Thickness | K-Value | Key Feature |
|---|---|---|---|
| AW90 Passive Window | 1.8mm | 1.3 | 8-layer sealing system |
| C120 Casement Window | 1.8–2.0mm | 1.6 | Full square cavity design |
| SL155 Sliding Door | 2.2–2.5mm | — | 400kg load capacity per sash |
| C116 Casement Window | 1.8–2.0mm | 1.7 | 22mm slim mullion |
ALPES has successfully supplied aluminum windows and doors to high-end projects across multiple continents. From luxury villa developments in Saudi Arabia and Dubai to modern residential projects in Australia and throughout the Middle East, the company has demonstrated consistent ability to meet diverse architectural styles, climatic conditions, and performance requirements.
This international experience means ALPES understands the documentation, certification, and logistics needs of export clients. The factory produces according to international building code standards and provides all necessary export documentation, ensuring smooth customs clearance and project compliance for clients worldwide.
ALPES understands that every project has its own aesthetic vision. The company offers four standard color finishes — Ice Cream White for clean modern interiors, Aurora Gray for bold contemporary contrast, Starry Sky Gray for sophisticated matte elegance, and Brown Coffee for warm classic designs. Custom color matching is also available for projects with specific brand or architectural requirements.
Glass options are equally flexible, with various insulated glass configurations available in multiple tints and styles. Whether a project calls for low-E coatings, laminated safety glass, acoustic glazing, or patterned decorative glass, ALPES tailors the glass package to each project's specific performance and design goals.
Working with ALPES is straightforward and transparent. From initial enquiry to final delivery, the team guides clients through every step:
Whether you are planning a luxury villa, a high-rise residential development, or a commercial building, ALPES has the product range, manufacturing capability, and global expertise to deliver aluminum windows and doors that meet your exact specifications. As a direct manufacturer with two major production centers in Guangdong, China, ALPES offers competitive factory-direct pricing without compromising on quality.
Explore the full tilt and turn windows collection, sliding door systems, and casement window series on the ALPES website. For project quotations and technical consultation, contact the ALPES team directly — they are ready to help you find the perfect window and door solutions for your next global project.
