Infinity partners with local experts who simplify the replacement process for you every step of the way. And we back it up with advanced building materials and design details that endure the test of time. Because some decisions should only be made once.

Ranked #1 in Customer Satisfaction
with Window and Patio Door Manufacturer Brands

For J.D. Power 2019 award information, visit

Complete assurance from
start to finish


Before installation

A local Infinity from Marvin expert will provide an in-home consultation to discuss style, features and more.


During installation

On installation day, they'll arrive at your home to remove the old windows and expertly install your new Infinity windows.


After installation

Infinity offers a Limited Lifetime Warranty for as long as you own your home. And we're always here if you have a question.

The Infinity Advantage


Our Ultrex® fiberglass delivers lasting performance

  • Expands 87% less than vinyl - resists expanding and contracting in any climate
  • 8 times stronger than vinyl - protects the integrity of your home
  • Resistant to leaks, seal failures and stress cracks - all things that can affect energy efficiency

Acclaimed design that withstands the test of time

  • Ultrex's strength delivers narrow window and door profiles for expanded views and more daylight
  • Our proprietary acrylic finish is fade-resistant and virtually maintenance-free
  • We offer a complete collection of styles, features and options to complement any home

The benchmark for customer service and satisfaction

  • Limited Lifetime Warranty for as long as you own your home
  • An experience that is designed to give you assurance at every step of the way
  • Our core value: Do the Right Thing
Our Partners

We only partner with
local experts


Infinity from Marvin independent retail partners are hand selected for their decades of experience and service in your local neighborhod.


Family-run businesses that give back to your community. Their reputation and future business depend on your 100% satisfaction.


Our partners understand your unique local codes, climate considerations and installation needs.

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Schedule your Free
In-Home Consultation

We'll connect you with your independent
Infinity expert within one business day.

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Contact dealer for details.

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Infinity streamlines the entire window replacement process

Find even more answers, inspiration and ideas with our Replacement 101 guide.

Replacement 101