We desperately wanted to replace our single paned aluminum windows throughout the house. After talking with several companies, we went with Ultrawindows based on current on-line reviews and were not disappointed in any way. Randy presented the pros and cons of all of the window types he installs. We went with the Don Young 8300 series aluminum windows.
I cannot impress on anyone how important proper installation of any replacement window is. Jorge and his installation crew were very professional and methodical in their approach. Everyone went their seperate ways, carefully covering interiors, removing glass and window frames, and placing the new windows. All 24 windows (15 window boxes) were installed in 2 days with 3 hours on the third day to clean and caulk the exterior. The crew left the house each day as clean as when they arrived. I cannot praise the crew enough for their professionalism and methods.
As far as the windows, we have already noticed a difference in the temperature balance and the lack of air infiltration as noticed by the air resistance when opening an exterior door.
I would definitely recommend UltraWindows to anyone needing replacement windows.