Our house had a total of 27 windows and 4 sliding doors which creation construction replaced for us. We switched from aluminum to quality vinyl windows with all the "bells and whistles", and the amazing results are seen by us daily. We now have way less noise, we use a lot of air conditioning during the summer and it is felt much stronger throughout the house. And best of all, our house simply looks so much nicer from both inside and outside. We're extremely satisfied and are in love with our new windows and doors.