Company Overview

Headquartered in Louisville, KY, Caldwell Tanks, Inc. has been building innovative, customized water and industrial storage tanks throughout North America since 1887. Caldwell’s broad capabilities allow for the turn-key design, fabrication and construction of customized field-erected storage tanks for Water, Oil & Gas, Chemical, Power and Aerospace industries.


In April of 2019, Caldwell became ISO 9001:2015 Certified! While Caldwell has always been devoted to quality in our products and services, we are dedicated to enhancing customer satisfaction through the effective application of the quality system, including processes for improvement of the system and the assurance of conformity to customer and applicable statutory and regulatory requirements.

Caldwell is committed to providing our customers with products that meet or exceed the customer’s expectations with regard to specifications compliance, safety and quality of workmanship. Caldwell is also committed to sales, design, fabrication, and construction of storage tanks that meet or exceed the customer’s expectations and requirements for performance, cost and schedule. This is accomplished through a combination of dedicated employees, sufficient resources and the continual improvement of processes.


Industrial field-erected tanks are a Caldwell specialty. Our numerous field crews and top of the line capabilities allow us to build your field erected tank when you need it. Whether it be fuel storage, stainless steel process tanks or wastewater treatment tanks, we can build it to your specifications. We provide tanks for the ethanol, Biodiesel, distillery, process, pulp & paper, oil & gas, water treatment and grain industries. Caldwell also offers process piping and ductwork design and construction. Experience Caldwell’s extensive capabilities!

Potable Water Tanks

Caldwell is the only tank contractor that offers all types of field-erected elevated and ground storage tanks. Each tank is designed and constructed to applicable standards of the American Petroleum Institute (API), American Water Works Association (AWWA), American Concrete Institute (ACI) and American Society of Mechanical Engineers (ASME).