I have been dealing with Window World for two months and it has been a nightmare. Their customer service is the worst I have had to deal with in my life. They promise installation in the morning and show up at 4:30 p.m. in the evening.
The installers that first came to my house could barely speak English. They damaged my house by taking out the windows and they had two bad windows to come back and install.
The installers even complain about the customer service. They state they do not have any idea when the installer will come to your house.
Product or Service Mentioned: Window World Installation.