Western Series 620 Sliding Window

Built to last the test of time, you’ll enjoy your Western Window Systems sliding window for years to come. Engineered for smooth operation, maximum ventilation, and a modern aesthetic, the Series 620 window line is designed with premium hardware and includes screens. This window is not only clean and attractive, but with narrow sight lines provides a full view to the outdoors. It is also low maintenance and energy efficient with dual pane glass, available in a variety of types, colors, thicknesses and low-E combined with a thermally broken aluminum frame.


  • A design pressure (DP) rating tested for the commercial marketplace and the ability to be glazed on the inside for easy installation.
  • A double sash option is available up to 96” in width and 72” in height.
  • Triple sash windows are available as well. 
  • Equipped with a locking system that is T-latch and concealed with a slim cover. Comes in finishes of black and brushed nickel.
  • All fasteners on the sliding window are stainless steel.
  • Comes with climate ready glass that can be customized in several different types, colors, and thicknesses for better privacy, protection and efficiency.
  • 4 ½” frame depth, available with integral nail fin or block frame.
  • Screens are made of extruded aluminum for added strength.

Combining clean design and optimal performance with a dedicated commitment to superior craftsmanship, the Series 620 Sliding Window features two or three sashes aligned horizontally and sliding left or right. A vast range of color options lets you customize your window as you see fit. Made in the USA and tested for air, water, and structural performance with certification by both the NFRC (National Fenestration Rating Council) and the AAMA (American Architectural Manufacturers Association).


Aluminum Finishes

Aluminum finishes for the Series 610 Single-Hung and Series 620 Sliding Window are available in-stock, as designer selections, and can be customized to match nearly any color. Samples shown are representative only. For exact paint swatch samples, contact us.

In-Stock Finishes

Dark bronze and satin anodized aluminum come standard with a Class 1 coating thickness for increased smoothness and durability.

Designer Finishes

Our designer colors are based upon popular paint choices in the homebuilding industry and include a high-quality paint finish that conforms to a minimum rating of AAMA-2605, currently the highest rating for organic finishes.

Custom Finishes

Have a specific color in mind? We can customize the color of your Series 610 Single-Hung and Series 620 Sliding Window to match virtually any finish.

Satin Anodized

Dark Bronze

Hillside Bronze

Bison Beige

Navajo White


Stonish Beige

Autumn Night


Cinnamon Toast

Western White

Estimates for a Western Series 620 Sliding Window are Free for Most of Oahu

or call (808) 748-3772

Western Series 620 Sliding Window Gallery - Click Images Below to Enlarge

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