How to Install Replacement Windows in Stucco

If you want to install replacement windows in stucco, you can do the job yourself. You will need to be sure you order the correct size of replacement windows. To do this make sure you measure your current windows correctly. You can install replacement windows in a few days.

1. Measure the current windows that are you are replacing, and also measure the window jamb. Do not remove the sashes until after you have measured.


2. Use a knife or sharp scissors to cut the sash cords, and then take off the sash. Use a pry bar and putty blade to pry the window stops off.


3. Put caulking on the edge of the window’s interior jamb blind stop.


4. Put the new replacement window into the opening, ensuring that you are pressing it on the blind stop. Hold the window in place by putting screws in the top right corner, and then the bottom left corners of the window.


5. Use a tape measure to make sure the window is square. Measure the window diagonally. You can use shims in the corners, if needed, to make the window square. Keep measuring until each corner is the same length. Attach screws so the window will stay square.


6. Use a level on the rights die of the window, and then level the left side of the window. Use more shims if needed to make the window level.


7. Tighten all of the screws in the window, and then cut the shims until they are level with the window. Install insulation in the window to prevent drafts in the cold weather.


8. Put caulk around the interior casing of the window, and then cove the windowsill with filler strip. Use a putty blade to smooth the caulk down.


9. Put more caulking on the exterior window casing to put a waterproof seal around the window. Smooth it down using the putty blade.