I just had 8 Harvey windows installed at my home. Al and John were great. They worked quickly and cleaned up perfectly afterwards. I love these windows! They are double hung and they tilt in for easy cleaning. You can also open the window from the top or the bottom. College Town/Northstar Bailey previously installed my picture windo and kitchen window. I would highly recommend them for anyone needing windows. I especially like the Harvey windows. They have a great warranty.