Winner of the Building Product Awards Survey for three years running.
Western Window Systems Series 670 hinged window line offers the styles, sizes, and performance features to enhance any type of home.
Combining clean design and optimal performance with the same commitment to superior craftsmanship found in our multi-slide and bi-fold doors, the Series 670 window line can be integrated with our hinged doors, sliding doors, and fixed window walls for maximum views and ventilation.
Start by choosing your Series 670 in casement, push-out casement, awning, or hopper styles. From there, a vast range of options lets you customize your windows as you see fit.

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“The 4.5” frame directly mulls to most of the other products. This eliminates the need to insert operable windows and allows us to keep the narrow sight lines that we look for.”Brissette Architects, Scottsdale, Arizona
Clean Design
Designed with a 4.5” frame depth, the Series 670 can be directly mulled to most of Western Window Systems’ product lines such as hinged doors, sliding doors, and fixed window walls.
Sloped Sill
For improved water drainage, each window style in the Series 670 line includes a sloped sill.
Thermally Broken Aluminum
Thermally broken aluminum provides an insulating barrier that increases energy performance.
Designed and Tested for Durability
Because we build and test our windows to last, you can enjoy your Western Window Systems product for years to come. Manufactured in the U.S., each of our product families is tested for air, water, and structural performance and certified by the NFRC (National Fenestration Rating Council) and AAMA (American Architectural Manufacturers Association).
Climate Ready Glass
The Series 670 features dual-paned low-E glass for better energy performance. Glass can be customized in a variety of types, colors, and thicknesses for improved privacy, protection, and thermal efficiency.