Concord Sheet Metal Products - Fabrication Excellence! Specializing in copper gutters, radius guttering, perforated copper, round gutter, and curved gutter. West coast distributor of the World Gutter System European gutter; many of our half round cast bronze products fit Berger Brothers gutters. Home of the Eclipse Millennium gutter. Since 1986 we have supplied the San Francisco Bay Area with custom flashings, duct work, stainless backsplashes, downspouts, copper and stainless hoods and countertops, bay windows, awnings, finials, cupolas, leaderheads, collector heads, 20’ foot flashings, custom gutters, and more!