Promanco is committed to preserving and maintaining landmark properties within the community. We have a reputation for protecting Marietta’s historic architectural integrity. The building formerly known as “Dime Bank”, located at 200 Putnam Street, is a prime example of our commitment to preserving and maintaining landmark properties within the Marietta area. We firmly believe that our community can and should progress while still preserving historic structures. Browse our photo gallery of historic renovation and protection projects to see the details that make Marietta, Ohio a great place to live and work.