Clearly different. Clearly better.
You’ll see the difference that friendly, honest people and quality Infinity® from Marvin® replacement windows can make.
HURRY, LOCK IN THE LOWEST PRICE BEFORE 2024! Offer expires 12/31/2023.
We streamline your replacement project — from start to finish.
8x stronger than vinyl
Infinity by Marvin windows are made of Ultrex® fiberglass, which is 8x stronger than vinyl and 3x stronger than Renewal by Andersen Fibrex. With a finish that’s 3x thicker than competitive options, Ultrex resists chipping, denting, or peeling.
More view for your money
Because Ultrex is so strong, we actually use less of it in the window frames. That means you get more daylight and greater views outside without bulky frames getting in the way.
A finish that lasts
Enjoy beautifully crafted fiberglass windows with your choice of style, grilles, hardware, and exterior color. Infinity windows and doors have a superior finish that outlasts all the competition. Infinity’s patented, mechanically bonded finish is up to 3 times thicker than competitive finishes and provides superior resistance to scratching and UV degradation, even on darker colors.
Color matched to your interior trim
Manufacturer—direct installation retailer
We are a Diamond Level Partner with Infinity from Marvin and a true single-source solution: Windows of Wisconsin installers, wood shop, stain shop, and service department. With a focus on customer satisfaction, we don’t sell windows to just sell windows. We sell windows to solve problems and give our customers the service they expect and deserve.
Replacement Window Specialists
Windows of Wisconsin has been locally owned and operated since 1997 by Certified Master Window Installer Carl Hardtke. The Hardtke family has a long and reputable history in the local Green Bay area construction industry.
Top 500 Remodeler
Largest in NE Wisconsin
Experienced and Trained