AST Construction, Inc. Tank Construction & Repair AST Construction brings 50+ years of combined above ground storage tank industry experience to the table. Our services provide professional engineering, design, inspections, foundations, dike walls, new construction, modifications, repairs, terminal dismantling, floating roofs, and seals on all types of above ground storage tanks. So, what does this mean for you? AST can provide the "muscle" and the "know-how" for your next project