Made with Ultrex®

Nothing’s Tougher

Infinity windows are made from Ultrex, inside and out. This fiberglass material is so durable, so long lasting, so strong, you’ll never have to worry about replacement windows again. Best of all, it makes Infinity windows essentially maintenance free.

Out with the old, in with Infinity from Marvin

After years of service, your old windows are drafty, hard to open and rotted. It’s clearly time for replacement windows. It’s also clear you want superior replacement windows that are as solid as they are attractive, and that require virtually no maintenance. Marvin - the first name in quality windows and doors - introduces the Infinity® from Marvin brand of replacement windows.

What makes Infinity so good? Infinity® from Marvin utilizes Ultrex, a fiberglass material that is far superior to other window materials.