Every Marvin Window and Door is made to order, one at a time. An unparalleled value in the market, Marvin offers craftsman-quality construction, energy-efficient technology and the industry’s most extensive selection of shapes, styles, sizes and options.
Integrity's windows and doors are made with Ultrex® Fiberglass, an innovative material created 20 years ago. For two decades now, Ultrex has outlasted and outperformed the competition on virtually every measurable scale.
Infinity Ultrex fiberglass replacement windows and patio doors are designed to replicate the look of traditional wood windows while providing modern features and low-maintenance, yet long-lasting performance.
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Sliding Patio
Swinging Patio
Scenic
Commercial
Planning a project?
When you partner with Marvin on your next project—whether that be a remodel, replacement, new construction, or even the creation of sustainable building—you can be sure you will be getting the guidance and expertise necessary to make any design complete. Tell us a few things about your project, and Marvin will work with local dealers to bring your ideas to life.
Need some extra help?
We gathered some helpful resources to help answer your immediate questions and provide solutions. From manuals to maintenance, and installation instructions to energy data, there’s a wealth of information right here.
Ultrex fiberglass - a pultruded fiberglass material so strong and durable it is superior to other window materials. Best of all, it makes Infinity products virtually maintenance free.
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Complete information on our broad range of product solutions from Marvin Windows and Doors, Integrity Windows and Doors and Infinity Replacement Windows.