About Hartwig Mechanical

Founded by James H. Hartwig in 1958, and currently led by the 3rd-generation owner Chadd Hartwig, Hartwig Mechanical has become the most reliable full-service mechanical firm in the Midwest. The company is guided by a clear Vision, Mission and set of Core Values championed by each member of the organization.

Hartwig Mechanical is a part of Crete United, a national energy efficiency company that uses our Mechanical, Electrical, and Plumbing (MEP) expertise to improve communities.  As part of the Crete United network, we deliver multi-service, integrated solutions, a streamlined customer experience, and comprehensive energy efficiency solutions that increase uptime and reduce spend.  Together, Crete United and Hartwig Mechanical are focused on making the places where we live, work, and play better and more sustainable.

Huge Building — Harvard, IL — Hartwig Mechanical, Inc.