I hired castle windows to change the 9 windows in my place plus a 3-panel slider. It took 6 weeks after I had signed the contract for Castle to install the windows. I hear this is normal time. They sent 3 guys who worked all day and replaced all windows. They were done by 5pm. A screen doesn't close all the way but overall they did a decent job. I just wish they would lower their prices. The new windows and slider work properly so far and I've had them installed for about 2 months now.