Fiberglass Windows

Infinity from Marvin® is a line of fiberglass replacement windows and patio doors designed by the experts at Marvin Windows and Doors. Created for the homeowner who wants low-maintenance, energy efficiency and traditional beauty, all Infinity products are sold by local window replacement experts as a complete, installed package to provide you with a high-quality, hassle-free experience.

Watch videos to learn more about the Infinity by Marvin Window line

PERFORMANCE. STRENGTH. APPEARANCE

The Smart Window Replacement Choice

When considering window replacement, you’re demonstrating the pride and commitment to the investment you made in your home. As you research, consider the following to make the right choice:

Experience

Infinity Windows by MarvinChoose a brand recognized as a leader. Infinity products represent nearly a century of innovation and uncompromising performance — the legacy of Marvin Windows and Doors.


Your Home’s Appearance

Infinity Replacement Windows by MarvinChoose replacement windows and doors made in custom sizes with options and features that meet your expectations. Infinity from Marvin’s thoughtful designs, appearance, and options allow you to match the style of your home.


Built for Life®

Infinity Fiberglass WindowsChoose windows and doors that are durable and will stay weathertight. Infinity products are made from patented Ultrex® pultruded fiberglass. Ultrex is so much stronger and superior than other materials, we back our products with a limited lifetime warranty.

 

Ultrex is as strong as low carbon steel and 8x stronger than vinyl. It’s so tough we have to use diamond-edge blades just to cut it to size. The strength of Ultrex translates into superior stability, long-term ease of operation, low-maintenance, and superior performance

Vinyl Replacement WindowsFiberglass Replacement Windows

Advantages of Ultrex fiberglass

  • Low maintenance
  • Base material is silica sand — an abundant natural resource
  • Intricate profiles replicate the look of traditional wood windows
  • Low expansion provides easy operation for the life of the window
  • Strength keeps windows square and true
  • Narrow profiles allow for more visible glass area and expanded views
  • Long-term stability reduces the risk of seal failures and air leakage through the window
  • Patented, mechanically bonded inline acrylic finish is up to 3x thicker than competitive finishes, providing superior resistance to discoloring, scratching, and denting
  • Ultrex fiberglass is 8x stronger than vinyl and one square inch can support 34,000 pounds!*
  • Fiberglass windows have a 38% longer useful life expectancy than vinyl.**
  • Infinity windows with LoĒ glazing can reduce your heating and cooling bills by up to 30%.***
20 years Celebration Savings
Easy Wash Windows
Bi-Fold Doors
Lift & Slide Doors
Interior Finishes
Curb Appeal
Shades
Any Color You Want
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