This is the the most unethical company I have ever worked with in forty years of home ownership!
From day one it was problem after probem...starting with the salesman not knowing how to corrrectly measure the window openings. Consequently, when the windows arrived five weeks late, NONE of them fit properly. The install team just tried to jerry-rig them to fit but most had to be reordered.
Due to this problem the team was in and out of our house several times and caused many thousands of dollars of damage to our home.
Just in case you're wondering...NO, Window World is not accepting any responsibility for the damages and is now not returning calls or emails.
DON'T EVEN consider this company for your window needs.
RUN!!!