Window Tech WI has been serving Wisconsin residential home owners for the past three years.  With the importance of energy efficiency, the need to maintain windows and doors is of utmost importance. With a background in construction and commercial building maintenance, Window Tech has the knowledge and expertise to ensure a proper repair the first time.  Combined with our competitive rates, Window Tech will save you time and money. Home    Services    Common Problems    Understanding Window Condensation  Contact Us site design & hosting by Green Bay Websites ON-Line Bill Payment Option Seal failure in thermo pane windows is a common problem.   When seal failure occurs, the glass pane must first be replaced. The glass may still be under warranty so give us a call for an in home inspection/assessment. 920-850-1876 Moisture between panes of glass Cloudy or Foggy Glass