Our revolutionary Ultrex® material has set the standard in fiberglass windows for more than 20 years. By matching durability and performance with timeless style and vast design options, our replacement windows bring new light to your home for years to come.
Built for Life®
Window Styles and Shapes
Or eager to explore new possibilities? Discover your ideal fit with our options below.
- Slide Open
- Crank Open
Windows that Perform
No More Leaks.
Performance-grade materials can handle every kind of weather — heat, rain, wind, cold or storms.
Infinity products are ENERGY STAR qualified.1 Choose our ENERGY STAR certified windows and doors to save an average of $101-$583 a year when replacing single pane windows.2
Our hardware is so intuitive and advanced, you can open and close your windows with one hand.
We use decades of design experience to create window styles that make a lasting impression.
Built for Your Home.
Our custom-built windows can match, update or transform any home’s style, inside and out.
Designed to Last.
Our durable, low-maintenance materials mean your windows stay looking new years and decades after installation.
A Finish that Goes Well Beyond the Finish Line
Interior Finish Options
Exterior Finish Options
EverWood® — The Beauty of Wood Without the Work.
Windows that Last
Replace your windows once and only once with windows built to last a lifetime. They can handle Mother Nature’s worst. And they won’t warp or fade over time.
A Trusted Name.
Backed by more than 100 years of heritage and craftsmanship of Marvin Windows and Doors, we bring the passion and dedication of a four-generation, family-owned business to your home.
Guaranteed for Life.
We’re proud of every project, and we stand behind our work. Our windows are backed by an extended service relationship and a lifetime warranty.
- Ultrex Fiberglass Frame and Sash
- Glass breakage
- Glass seal failure
- No Service Fees
Schedule your free in‑home consultation
We’ll connect you with an Infinity Project Consultant within 1 business day
Save 40% on combined purchases of 5 or more windows and doors.
Plus, choose the flexible financing plan that works for you
1. “Life cycle assessment of windows for the North American residential market: Case study” by the University of British Columbia. Scandinavian Journal of Forest Research, 2008. 3. ENERGY STAR at energystar.gov
2. Savings reflects installing ENERGY STAR certified products compared to non-certified when replacing single pane windows based on the average savings among homes in modeled cities. Actual savings will vary by product type, location, method of installation, individual home characteristics, local climate and conditions, utility rates, and other factors.