Infinity from Marvin® is a line of fiberglass replacement windows and patio doors designed by the experts at Marvin Windows and Doors. Created for the homeowner who wants low-maintenance, energy efficiency and traditional beauty, all Infinity products are sold by our highly trained Plum Design Consultants as a complete, installed package to provide you with a high-quality, hassle-free experience.

The Smart Window Replacement Choice

When considering window replacement, you’re demonstrating the pride and commitment to the investment you made in your home. As you research, consider the following to make the right choice:


Choose a brand recognized as a leader. Infinity products represent nearly a century of innovation and uncompromising performance — the legacy of Marvin Windows and Doors.

Your Home’s Appearance

Choose replacement windows and doors made in custom sizes with options and features that meet your expectations. Infinity from Marvin’s thoughtful designs, appearance, and options allow you to match the style of your home.

Built for Life®

Choose windows and doors that are durable and will stay weathertight. Infinity products are made from patented Ultrex® pultruded fiberglass. Ultrex is so much stronger and superior to other materials, we back our products with a limited lifetime warranty.

See Also



Our selection of Fleetwood windows is second to none.

Click here to see our current Fleetwood line.