Save Money with Replacement Windows
Reduce energy bills with our high-quality, energy efficient replacement window options.
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END OF THE YEAR WINDOWS SAVINGS EVENT!

75% OFF INSTALL | NO INTEREST, NO PAYMENTS UNTIL 2025 | $75 GIFT CARD

4.9 out of 5 based on 951 Reviews
Angie's List - Super Service Award
BBB Accredited
#1 Ranked Wisconsin Remodeler

Replacement Window Company

Replacing the outdated, inefficient, and drafty windows in your home is one of the smartest investments you can make. In addition to boosting your home’s curb appeal and value, properly installed replacement windows increase the energy efficiency of your home, reducing your heating and cooling bills.

Window Styles

No matter what your home’s design, we’ve got replacement windows that will blend with it seamlessly.

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EcoSky Window Products

  • Sky Mirror Technology Extremely high performing, energy efficient glass system which dramatically improves thermal insulation and indoor comfort compared to standard insulating glass (IG) units.
  • Vinyl Windows Manufactured in America Four Point Welding Technology - A computer-controlled welding machine fuses each corner of the frame and sash to its counterpart to create one single piece.
  • Energy Star Most Efficient Offers superior winter heating and summer cooling due to its multicavity design. Blocks 99.5% of harmful UV rays.

Color Options

Mad City Windows' Award-Winning Services

Enjoy expert home renovations—and a level of service that is becoming harder to find.

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Quality Workmanship
Quality
Workmanship
Family Owned
Family
Owned
Award Winning
Award
Winning
Lifetime Warranties
Lifetime
Warranties
Customer Reviews

Jeff's Crew arrived on time and got to work immediately. They did an incredible job of installing a new Bay Window even though the old one was very difficult to remove. They were professional and knowledgeable of their trade. They respected our house by putting up sheets of plastic and showing grea...

Linda E.

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