​​​​Grant Replacement Window Company

Have you been thinking about installing replacement windows but thought it would cost too much? Mad City Windows makes it affordable to get the premium windows you want by keeping our prices competitive and offering simple financing options with attractive terms and low monthly payments.

You might be wondering about quality.

We only install high-performance windows that provide the style, durability, and performance homeowners want. Plus, all work is completed by licensed, insured, and trained crews for a flawless result.

Since 1986, our commitment to excellence has earned us industry awards, excellent reviews, and our place as Grant’s trusted choice for:

Add Value to Your Home with Premium Vinyl Windows

Outdated windows bring down the value of your home, and that’s one reason an investment in quality vinyl windows is a good idea. Whether you want to replace all of the windows in your home or just add an eye-catching feature, we have just what you need.

We install:

Choose us as your window contractor and have confidence that every window we install meets high standards for quality and is backed by some of the best warranties in the business!

Enjoy Impressive Savings with Energy-Efficient Windows

You know you can save on heating and cooling with an energy-efficient window installation, but do you know how much you could save? A typical homeowner saves nearly $500 a year when updating from single-pane windows to high-performance windows—and many save even more.

Our windows have money-saving features, such as:

  • Premium Dual- or Triple-Pane Glass
  • Weather Stripping
  • Thermal Spacers
  • Gas Fills
  • And More!

All of those features work together to earn our windows ENERGY STAR compliance, so you know you’ll enjoy the maximum savings.

Contact Our Grant Window Contractors for an Exact Project Estimate

Let’s start a conversation about how our award-winning St. Paul replacement window company can add value, curb appeal, and energy efficiency to your home! Call Mad City Windows today to learn more about our products and services, or fill out our online form now to schedule a free, in-home consultation.

Mad City Windows' Award-Winning Services

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

Get Quote
Quality Workmanship
Family Owned
Award Winning
Lifetime Warranties

Get Free Estimate


No Payments No Interest until 2026