E. F. San Juan teams up with Marvin® to offer truly superior quality and innovation—built around you..

E. F. San Juan is proud to team with the people that make up the Marvin Family of Brands. What began as a family company built on
an old-fashioned code of honesty, hard work, and service to their neighbors is now one of the world’s premier window and door companies. Through our three unique brands—Marvin, Integrity, and Infinity—and each brand’s unique offerings of customization and performance, we can provide a solution to any project. For everything from new construction to remodeling and replacements, to commercial building and even historical restorations, we never take shortcuts, and we always adhere to the highest possible standards and the highest levels of service. We stand behind every one of our products, every
step of the way.


We make it our priority to be a partner to our customers through every step of the process, and go above and beyond what is expected. That includes making sure our products continue to live up to our high standards every single day.


The Marvin brand is Built around you®. Built on a heritage of quality and innovation, we are continuously leading the industry in product design and function. Each product is made to order, one at a time, to meet your exact specifications. With our customization capabilities, exclusive innovations, high-performance energy efficiency options,
and our unmatched personal service at every point in the process, you will be able to find beautiful windows and doors for your project.

Just south of the Canadian border, nestled next to Lake of the Woods, sits the small town of Warroad, Minnesota, home to Marvin Windows and Doors--the world’s largest manufacturer of made-to-order wood window and door products. Heralded throughout the world as an industry leader, Marvin is known for its craftsmanship and rich legacy of producing high-quality and innovative products that are a result of the talents and entrepreneurial spirit of the people who work there.


At Marvin, as a privately held, family-owned company, we’re used to taking the long-term view, and we recognize that a serious commitment to sustainable operations is just good business. We are committed to sustainable business practices for the environment and for the communities in which we serve. Sustainability is much more than “green” business practices. It includes implementing environmentally friendly manufacturing processes and building sustainable communities in the USA where Marvin products are manufactured.


The Marvin Family of Brands is dedicated to creating products that make the places where we live and work more meaningful by developing high-quality products built on a foundation of heritage values, innovation and craftsmanship. The recognition we have received for our commitment to our communities, our partners and our customers reflects the pride we take in the work that we do each and every day. We are honored by every commendation and award that we receive, and we remain committed to upholding the values and traditions of the Marvin Family of Brands for many years to come.




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