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Phone: (636) 583-8698 | | Fax: (636) 583-5971

About hth Companies

Headquartered in Union, Missouri, hth companies, inc. provides construction services to industrial customers throughout the Midwest. Founded in 1984 as a merit-shop mechanical insulation company, hth companies continues to apply this philosophy and has grown into a large-scale construction service provider where employees are encouraged to develop their full potential to provide quality work. By encouraging this mentality, hth companies have been led, not limited, by our employees’ skill sets, allowing the company to expand into numerous services for our customers. Today, hth companies offer a wide array of services including mechanical insulation, mechanical maintenance, scaffold erection, industrial cleaning, industrial maintenance, painting and coating, welding, pipefitting, and confined space rescue.

With over 40 years of experience, hth companies continue to promote the merit philosophy it was founded upon, rewarding employees based on their contributions to the organization. hth companies make a commitment every day to more than eight hundred employees to provide a safe work environment where they have the necessary tools to succeed. Our management’s obligation is to serve our employees and customers, creating a synergistic relationship between customer and contractor. We are guided by our core values of integrity, people, service, and advancement.

Company Values


Mission Statement: To deliver timely, cost-effective solutions to our customers’ needs in a safe, profitable manner.

Vision Statement: To better our employees, customers, and communities we serve.

hth companies’ philosophy can be summed up in a plaque that hangs in the office of the company’s founder, Greg Hoberock. This philosophy has guided the company for over 40 years and continues to be implemented today. It is the ideology with which we strive to treat customers, employees, and our associates as we work towards excellence.



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