Please select "New Construction" if your windows were installed in a brand new residence. Please choose "Retrofit or Replacement" if your windows were installed into a preexisting residence.
The serial number can be found on several labels applied to our windows or doors. The glass label, the sash label (located on side of sash of tilt in windows, can only be seen by tilting in your sash) and the screen label. All labels are white with a black bar code. You only need to get this number off one window. All windows in your house will typically have the same order number. The serial number is the first number to the left above the bar code and should start with a W.