Spray-O-Bond | Restoration Services Stone, terra cotta, restoration, Milwaukee, Consulting, Chicago, Wisconsin, preservation, structural, steel, brick, buildings, concrete, façade, expertise, façade cleaning, façade inspection, repointing, rebuilding, Spray-O-Bond, Spray O Bond The Spray-O-Bond Company, family owned since 1926, is a historic building restoration contracting company based in Milwaukee, WI. The wide variety of work includes the diagnosis and restoration of building structures, steel restoration, and veneer systems; as well as historic fabrics of terra cotta, stone, brick and masonry rebuilding.