Our Services | Hartwig Mechanical, Inc.


Hartwig Mechanical, Inc. is consistently recognized as one of the top plumbing 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.