King Window's carpenters are and installers are factory Certified and more than qualified to perform whatever modification becomes necessary and you can be assured that your home has a higher value, more comfort and aesthetic appeal when we have finished with your installation. King Window & Door (a division of Green Igloo) Replacement Line of Products is second to none! King Window is revolutionizing the way Brazos Valley buys replacement windows. With our exclusive "Owners Choice" program we split the purchase and install process thereby creating incredible savings.