A tank repair company, specializing in above ground storage tank technical service, shop fabrication, new construction, maintenance & repairs.

TANCO, a tank repair company, specializes in above ground storage tank technical service, shop fabrication, new construction, maintenance, repairs and floating roof seal systems. Since its founding in 1979 by John Mulkey and Sonny Petrie, TANCO has strived to continuously excel in the areas of health and safety performance, work quality, environmental stewardship, and customer service. We earned our top tier industry reputation by consistently delivering results.