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Marvin and Integrity Demonstrate Leadership In ENERGY STAR “Most Efficient” Products


WARROAD, Minn. – Marvin® Windows and Doors and Integrity® Windows and Doors have now received ENERGY STAR “Most Efficient” designation for more than 22,700 of their products – the latest validation of the company’s industry-leading position in energy efficiency.

To comply with ENERY STAR’s “Most Efficient” standards, Marvin and Integrity offer the required high-performance glazing options and available accessories across many window product lines. Marvin and Integrity’s certified window product and glass options feature a 0.20 U-factor or lower, attain the necessary SHGC values and meet all four ENERGY STAR zone requirements – a prerequisite to be awarded “Most Efficient.”

Marvin product families offering options that meet ENERGY STAR’s “Most Efficient” designation include:

Integrity product families offering options that meet ENERGY STAR’s “Most Efficient” designation include:

“We are committed to producing high quality products that are designed and built for top performance, and we have for decades,” said Christine Marvin, Director of Marketing for Marvin Windows and Doors. “Perhaps our headquarters in Northwest Minnesota has fueled that commitment to provide the utmost in energy efficiency and comfort.  The number of solutions we have that meet ENERGY STAR Most Efficient demonstrates that drive to satisfy the design and performance needs of our customers.”

To learn more about Marvin and Integrity’s energy-efficient products and options, visit

About Marvin Windows and Doors

Marvin Windows and Doors brings its Built Around You® philosophy to life with every customer and every solution. A premier manufacturer of made-to-order wood and clad wood windows and doors, Marvin offers the industry’s most extensive selection of shapes, styles, sizes and options to fit the diverse needs of builders and match the personalities of homeowners. Marvin’s tradition of delivering the finest craftsmanship in windows and doors began in Warroad, Minn., a small town just six miles from the Canadian border, where the privately-held, family-owned and -operated company is still headquartered today.

About Integrity Windows and Doors
Integrity Windows and Doors is the world’s largest and most experienced manufacturer of windows and doors made with Ultrex — a state-of-the-art pultruded fiberglass material. We didn’t just join the fiberglass revolution — we pioneered it. Our heritage as part of the Marvin Family of Brands is built on more than a century of excellence and expertise. Based in Fargo, N.D., Integrity offers a comprehensive line of window and door products that are Built to Perform® and backed by first-class customer service.