A family owned and operated business, founded in 1986 by Owners Ron and Sharon Grandan developing the project expertise in Plan. Design. Execute. GBI is committed to providing quality products and services, at a competitive price, while fostering a “go to” relationship. The values of personal attention were ingrained in the company and passed on as Tyler Grandan (Ron’s eldest son) began to lead the growing business. We strive to form lasting partnerships with all members that we work with, alongside and for.