Builder of Custom Modular Homes, Panelized Garages, Additions, and Septic Systems. We offer complete site work packages. Fully licensed and insured. We are a true full service modular builder and can handle all aspects of the construction process for you. From pulling the permits and site work to finish carpentry, GBI-Avis will manage your project every step of the way. It is the GBI-Avis...