For 70 years, Grunwell-Cashero is a recognized specialist in building restoration, rehabilitation and preventative maintenance. With offices in Detroit, Toledo and Cleveland, we've restored/preserved some of the Midwest's most prestigious structures. Our expertise includes Historic Preservation, Masonry Restoration, Façade Inspections, Concrete Restoration, Waterproofing/Coating/Injections, Stone Work, Fire Protection and General Contracting.