J.M. Brennan has grown significantly over the past 80 years and now has its third generation of Brennans leading the company forward to the next phase of growth, expansion and leadership.
In addition to extensive service offerings, the Milwaukee, Wisconsin-based mechanical contracting firm also offers design, engineering, BIM and prefabrication services. J.M. Brennan’s build services span everything from new construction to renovations and new equipment installation, as well as custom mechanical solutions.