TectaAmerica Dakotas Custom Roofing / Greenberg Roofing Share: Construction Services TectaAmerica Dakotas Custom Roofing / Greenberg Roofing Visit Website 213 Riverwood Ave SE Mandan, ND 58554 (701) 663-8972 About Rep Info Map About A commercial roofing and sheetmetal company providing services in everything. Services include: new construction, re-roofing, 24 hour leak services and roof asset management programs. Whom to Contact Colby Caster What's Nearby? Distance: 5 10 15 20 25 50 mi.