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Certified Master Installer Carl Hardtke has locally owned Windows Of Wisconsin for over 25 years. As a Master Installer, Carl knows what it takes to get the job done right. He personally works with and trains his staff to ensure that you get the best service possible.
We have the largest variety of windows to choose from, the latest developments in window technology and personalized service that can’t be beaten. All of our windows are backed by excellent warranties from their manufacturers. We are so confident in our work that we guarantee our workmanship for as long as you live in your home.