By quality of work. By volume of jobs. By reputation. AGA prides itself as one of the leading curtain wall companies in North America. Founded in 1970 and headquartered in California, AGA has helped bring to reality some of the most iconic structures in its home state plus Hawaii, Washington, Alaska and Texas. We specialize in custom curtain wall systems, large and small, that bring your vision to life. AGA continues to grow, having now completed projects in the states of California, Hawaii, Washington, and Alaska.