About Us

What We're All About

OpenUp™, a Mullionz company, is a trusted designer and manufacturer of pass-through awning windows. The company is recognized not only for its thoughtful design and engineering but also for its 2Fold® technology. This new design blends the strength of heavy extruded tubular aluminum with the richness, sustainability, resilience, and beauty of Accoya® wood. OpenUp brings more than four decades of window and door design, engineering, manufacturing, and installation experience serving some of the most innovative companies throughout the United States and Europe.

...We believe our choice of materials is key

That’s why we incorporate resources that are recognized for their sustainability, durability, longevity, and functionality. Passionate about design, we want to provide our customers with a modern showpiece and a better home experience that unites their indoor and outdoor lives. Our architectural pieces are intended to beautify, redefine, and transform a space while adhering to a higher set of quality and durability standards.

Why OpenUp?

Inventor and Entrepreneur, Ed Page has used his four decades of window and door design, engineering, manufacturing, and installation experience into developing our OpenUp Kitchen or Bar pass-through window. This extraordinary gas strut window is durably constructed, built to last, and able to offer all of the conveniences one expects—like easy operation, extraordinary craftsmanship, exceptional insulation, and our 10 year +40 Warranty. Expand your kitchen space and entertaining possibilities with a high-performance window that begins at just under $3,000. Our efficient digital manufacturing processes enables us to ship stock sizes in as little as two weeks

2Fold Tech

2Fold technology incorporates Accoya®, the world’s most environmentally responsible wood, for interior-facing beauty and thermal insulation. Accoya® is the perfect partner with structural metal sashes, offering the best of both worlds without plastic separation. OpenUp trails the overwhelming success of the company’s 2Fold custom doors, which are produced by the same engineering and manufacturing team.

OpenUp is an Approved Accoya® Manufacturer based in New York. Customers include home owners, builders, architects, and dealers nationwide.

Exploring design options?

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