Custom Specialty Aluminum Windows

Custom specialty aluminum windows are the units that fall outside the standard rectangle: curved and radius frames, structural-glazed corners, oversized fixed panels and irregular shapes built to drawings. Aoslon fabricates them in the same Foshan plant as the standard series, on the same thermal-break profiles and powder-coat or anodized finishes, so a specialty unit matches the windows around it instead of looking like an exception.

What Counts as a Specialty Window

Three families cover most requests. First, geometric specials — trapezoids, triangles, ovals, full circles and arch heads, usually fixed glazing in gables, stairwells and entrance features. Second, radius work — arched heads or fully curved horizontal frames where the aluminum is bent to a minimum radius and the glass is cold-bent or cut to the curve. Third, oversized fixed units — picture glazing whose dimensions exceed standard handling, engineered around glass thickness, transport and installation access. All three are quoted from drawings, not from a price list: send the shape, dimensions and opening requirements, and engineering confirms what the profile and glass can do.

Curved & Radius Windows

Curved frames start from the aluminum bending capability: the profile is drawn around a mandrel at a controlled radius, then thermally broken, finished and glazed. Sharp corners are avoided in favor of generous radii so the profile keeps its shape and the seal stays even. Glazing follows the curve — annealed units for gentle radii, or segmented construction with structural silicone joints where the radius is tight. Typical applications are arched window heads, curved gable ends and quarter-round corners on stairwells. Minimum radius depends on the profile family and is confirmed per project by engineering before the shop drawing is issued.

Corner Windows (Structural Silicone)

A true glass-to-glass corner removes the corner column: two fixed units meet at 90 degrees and the joint is sealed with structural silicone instead of a mullion. The glazing carries the edge load, so glass thickness and edge treatment are engineered case by case, and the roof or wall loads above must be carried by the structure, not the glass. Corner units pair naturally with fixed picture windows and with curtain wall assemblies where the opening continues past the corner.

Oversized Fixed Units

Oversized picture glazing is a logistics product as much as a window product. Panel size is confirmed against glass availability, thickness and weight; the frame reinforcement, the packing and the transport route are all planned before production. Single panels that exceed practical transport limits are split into mullion-linked pairs so the sightline stays continuous. See fixed / picture windows for the standard version and sliding patio door standard sizes for how large panels are dimensioned in practice.

How Custom Orders Work

Send elevations or a simple opening list — shape, width × height per unit, quantity, glass and finish. Engineering returns shop drawings for confirmation before anything is cut. Production for made-to-order units typically runs 25–45 days after drawing approval and deposit, as confirmed in the quotation; complex radius work can take longer and is flagged at quoting. Units ship in the same export packing as the standard series — Pearl-wool, foam board and air bubble film, with plywood crates optional — labeled per opening code for site distribution.

Glass, Finish & Screening Options

Specialty units accept the full glass range: double and triple glazing, Low-E coatings, argon filling and laminated units for safety or impact zones. Finishes match the standard series — powder coat in architectural RAL colors or anodizing — so a curved unit beside a casement window reads as one system. Where a specialty unit is operable rather than fixed, screening and hardware follow the matching series. Compliance and test documentation for profiles, hardware and glazing are listed on the certifications page, and orders are quoted FOB South China ports, CIF or DDP.

Ready to start? Send drawings or the opening list through the contact page and the quotation comes back with glass, finish and packing options within 48 hours.