Desmond & Wallace, Inc. specializes in top-quality building and engineering projects, delivered with personalized style. Whether your project involves new construction, excavation, remodeling, or renovation, DWI's collaborative, value-driven process assures you of exceptional results. We approach every step as though we own the finished product. Satisfied clients, architects, and engineers throughout Marin, Sonoma, and Napa counties agree: When a building project requires innovative solutions, creative expertise, and dependable service DWI is the contractor to call.