Hartwig Mechanical, Inc.

Hartwig Mechanical, Inc. is consistently recognized as one of the top commercial plumbing, engineering, mechanical, facility maintenance, and HVAC contractors in Illinois and Wisconsin. Licensed, bonded, and insured, Hartwig delivers a full range of construction and maintenance services in select US markets ranging from $300,000 to $10 million and up. Since 1958, our expertise is managing a project from conception through design, construction, and maintenance of the facility or residence throughout its lifetime. From project inception to the project’s completion, we give our customers a level of service that meets and exceeds expectations.