Replacement Windows

Infinity from Marvin Fiberglass Window and Patio Door Systems

Lakeside Exteriors, Inc., offers the homeowner the best-valued exterior solution the Infinity by Marvin fiberglass window and patio door systems – fabricated with superior ULTREX fiberglass – rather than the usual vinyl windows and doors. We carefully chose this product line and believe these windows to be the most technologically advanced, best value in the marketplace today.  The quality of these superior fiberglass replacement windows and patio door systems complements our James Hardie Fiber Cement siding.

Infinity by Marvin Replacement Windows are available in a variety of styles:

• Double hung (pdf)
• Glider (pdf)
• Casement and awning(pdf)
• Bay, Bow, & picture configurations (pdf)
• Sliding and French swing patio doors (pdf)

Want more information? The following links provide detailed information on these fine fiberglass replacement windows and patio door systems.

Ultrex fiberglass construction

Energy Efficiency, warranty, and grilles (p. 9, p. 10)

Window color choices & glazing options

Cleaning of Infinity by Marvin Fiberglass windows

Infinity by Marvin Windows

What is Ultrex fiberglass?

Ultrex is pultruded fiberglass.

Ultrex is strong, stable, weather-resistant and long lasting.

Why is Ultrex a Better Material?

Strength! Infinity by Marvin Window's Ultrex is 8x stronger than vinyl and 3.5x stronger than wood/vinyl composites!

“We were very happy with our new windows and patio door. Lakeside did a wonderful job. We would do business with them again.”

C. & B. C., St. Louis, MO