— Manufacturer Introduces New High-End Aluminum Product Lines —
QUEENS, NY, January 30, 2026 – Award winning national manufacturer Crystal Window & Door Systems continued its product line expansion with the recent launch of the high-end aluminum OPUS lines. Introduction of the elite OPUS windows and doors catapults the firm into the upper echelons of window manufacturers. Three major model lines, each with several styles of windows and doors, are initially offered with the OPUS products, with more to be introduced in the coming months.
“Born in Belgium, Built in America,” the Crystal OPUS products are the result of a strategic partnership with Reynaers, a leading European fenestration system designer and extruder. An “Official US Certified Fabricator for Reynaers”, the Crystal OPUS aluminum window and door fabrication as well as insulated glass assembly is all performed at Crystal’s American factories by its skilled American workforce.
All three of the new OPUS window and door model lines – SL38, ML8, and MP – are noted for their narrow sightlines, slim but strong frames, robust high-performance thermal breaks, and several designer options for frame profiles. With clean lines, crisp details, and precise finishes, each Crystal OPUS product is a work of art.
The OPUS windows and doors are perfectly tailored for high-rise luxury properties, elite institutions, superior commercial buildings, as well as unique premium homes. From grand historic restorations and lofty towers to cutting-edge modern projects, the Crystal OPUS windows and doors are perfectly suited for all applications.
“The introduction of the OPUS window and door product lines opens the door for Crystal to serve the highest tiers of the fenestration market,” said Steve Chen, CEO for Crystal. “This expansion of the product line means Crystal will truly be able to supply all types of projects with products that range from modest residential window replacement jobs to ultra sophisticated luxury high-rises and elite residences.”
First among the three new Crystal OPUS lines are the 3-⅞” jamb depth Crystal SL38 aluminum models. With a slim design and narrow sightlines, its minimalist aesthetic can replicate the iconic industrial look of steel frame windows. Available styles include fixed, casement, hopper, awning, and a terrace door, with a choice of four frame profiles: functional, classic, cubic, and ferro.
The SL38 window products are top performers across the board. The casement window is rated AW-PG100. Polyamide insulating thermal struts provide outstanding performance with U-values as low as 0.23 with double glass IGUs and 0.16 for triple glass IGUs. Sound attenuation ratings are 44 STC and 35 OITC.
The Crystal SL38 aluminum terrace door has a 4-5∕16” frame depth and is CW-PG40 rated. Thermal performance achieves U-values of 0.30 with double glass and 0.25 with triple glazed IGUs. Acoustic ratings are STC of 38 and OITC of 34. Available with several frame profiles, the SL38 terrace door also offers a “zero threshold” option.
The new Crystal OPUS ML8 aluminum windows and doors have a 3-7∕16” jamb. This flagship quality model line offers great thermal and acoustic performance, as well as countless design options. The Crystal ML8 line strikes the right balance between sleek aesthetics and strong function. All the Crystal ML8 windows and doors use polyamide insulating strut thermal break technology.
The ML8 windows are available in several styles – fixed, in-swing casement, project-out hopper, project-in awning, and even a center-pivot – with four frame profile options. Key aesthetic features of the ML8 window line include hidden operating sash sightlines, concealed hinges and drainage, and glass corner options. Outstanding structural, thermal, and acoustic characteristics are demonstrated with an AW-PG70 rating for the casement style, U-values of 0.23 with double glass and 0.16 with triple glass, and STC of 50 and OITC of 44.
The aluminum ML8 swing terrace door offers numerous great performance, function, and aesthetic features. Available in sizes up to 5’-7” wide and 10’ tall, the ML8 terrace door utilizes a “soft operation” integrated closer in the head, concealed hinges, and low and zero ADA thresholds. Optionally, the door’s pivot point can be adjusted out from the jamb for unique functionality and style. The AW-PG70 rated terrace door’s thermal performance can reach U-values of 0.26 with double glass and 0.20 with triple glass IGUs. Sound attenuation performance ratings are similarly excellent with STC of 43 and OITC of 35.
The new Crystal OPUS MP Lift-Slide door is rated AW-PG60, has a 7-⅛” jamb, offers outstanding strength and performance, and is readily compatible with the ML8 products. The door features a zero threshold, multiple nesting panels and tracks, and can be fabricated in sizes up to 9’-10” wide and 12’ tall. Insulated or monolithic glass sizes range from ⅝” to 2-⅜” thick. The polyamide thermal strut design can deliver U-values of 0.30 for double glass and 0.21 for triple glass IGUs. With top strength, durability, thermal performance, and using premium recycled aluminum extrusion materials, the MP door is an exemplary sustainability performer.
The Crystal OPUS model line frames are currently available in a variety of colors in a standard AAMA 2604 powder coat finish, with an optional upgrade to AAMA 2605. Future plans call for the color choice, for large quantity orders, to be expanded to hundreds of colors. All finish coatings meet strict European standards and receive the “Qualicoat Class 2 Coating Certified” official quality label.
The Crystal OPUS products receive a full US warranty from Reynaers, which is only available through US-based certified fabricators like Crystal Windows. As such, the installed OPUS windows and doors receive on-site and virtual technical support from Crystal and the US-based Reynaers technical assistance teams. Additionally, Crystal supports design and construction professionals through all stages of their OPUS projects, from initial consultation for concept, design, and product selection, all the way to job delivery, installation training, and inspection.
