How to Replace a Rear Window in a Car

If your car has a broken rear window, you need to fix it to drive safely. However, replacing the rear window is an expensive proposition, and it puts the drivers in an awkward position. Fortunately, over the course of an afternoon with a little hard work, you can eliminate some of the financial sting by doing the work yourself.


  1. Slide the razor blade along the perimeter of the rear window frame. Wear safety gloves that remove the caulking and weather stripping.
  2. Lift the front window of the rack with an assistant so that the glass does not break. Make sure you have the old window safely.
  3. Cut any remaining urethane from the window frame. Remove all urethane debris and debris to ensure a solid support from the new rear window.
  4. Apply the urethane primer that comes with the window kit and allow it to dry completely.
  5. Extend a thin strip of urethane putty along the inside of the window frame with the putty gun. Make the count of the width of a little finger. With your help, lift the new window in place, aligning the edges of the window in the mastic layer.
  6. Allow the putty to dry in a warm, dry place for at least 24 hours.