Census estimates count roughly 1,100 Marietta housing units built before 1950. On a house that old, ask the company to look for traces of the original gutters before you pick a replacement.
The city’s design guidelines for Kennesaw Avenue, for Church-Cherokee Streets and for Forest Hills want historic gutters maintained, and they prefer repairing historic features to replacing them. When replacement is needed, they ask for materials matched as closely as possible in design, shape and appearance, and they advise against roof work in materials that would dramatically change how a house looks. They count gutters among a roof’s elements.
So copper fits most easily where it matches what’s there, such as a house that already has copper gutters. A change of metal is less clear. The ordinance lists replacement gutters as a minor repair when they keep the original location and scale, and its broader maintenance exemption covers work with no material change in design, material or appearance. If you plan to trade aluminum for copper, or copper for aluminum, apply to city staff first. Staff can sign off on a minor repair or send the application on to the Historic Preservation Commission.
Downtown is stricter. Guidelines for the Downtown Marietta Historic District ask owners to keep historic gutters and downspouts, and to make any worn-out gutter they must replace look like the old one in color and size. Work there needs the Historic Board of Review’s approval first, in the form of a Certificate of Approval.