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Save Money with Replacement Windows
Reduce energy bills with our high-quality, energy efficient replacement window options.

Save $1,000 On 6 Or More New Windows For Your Home!

Double Your Interest Free Financing To 4 Years!

4.9 out of 5 based on 832 Reviews

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#1 Ranked Wisconsin Remodeler

Replacement Windows

Replacing the outdated, inefficient, and drafty windows in your Wisconsin home is one of the smartest investments you can make.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.

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.

Quality Workmanship
Family Owned
Award Winning
Lifetime Warranties
Customer Reviews

We just received a quote for some new windows, a door, AND a bathtub/shower...WHY MadCity? Because they did an awesome job installing windows in our sunroom 5 years ago! We never forgot the excellent service from the beginning to the end. We love their professionalism and the quality of their produ...

Linda G.