Update your home with Infinity by Marvin replacement fiberglass windows and doors for low-maintenance performance with a variety of style and design options.

Built with Ultrex ®, our 100% fiberglass material, Infinity by Marvin windows transform your home with 8x the strength of vinyl. Enjoy sweeping views, unmatched comfort, and a lifetime of beauty.

Infinity Double Hung Replacement Windows utilize quality hardware and advanced design, resulting in a fiberglass window that is easy to open and clean.

Explore customizable replacement window grilles, colors, glass, and hardware options with Infinity by Marvin. Schedule your free in-home consultation today.

Infinity Replacement Casement Windows are made of Ultrex fiberglass, featuring two hinge options for easy cleaning or larger, unobstructed views.

Family-owned and led since 1912, Marvin has come to mean strength, quality, and doing the right thing for homeowners. Building upon this heritage, Infinity by Marvin launched as the dedicated …

Window and door replacement projects require time and energy. Let Infinity by Marvin be your window replacement guide from initial consultation to installation.

Infinity's Single Hung Replacement Windows utilize quality hardware and advanced design, resulting in a fiberglass window that is easy to open and clean.

Many factors affect the cost of replacement windows and doors. Infinity partners with local experts who work with your budget to find the best windows for you.

Find a local Infinity from Marvin replacement window and door consultant near you for a hassle-free consultation and experience that will exceed your expectations.