J M Brennan

Company Overview

Founded in 1932, J.M. Brennan is a mechanical contracting business serving the southeastern Wisconsin area. We focus on the design and installation of various systems, including boilers, chillers, air handling units, exhausts, ventilators, sanitary sewers, water treatment plants, and heat recovery systems. Our piping services cover food-grade, refrigeration, industrial gas, underground, and compressed air applications. We have a dedicated team of designers, engineers, steam and refrigeration fitters, and sheet metal workers. As a family-owned and operated business, we utilize a range of equipment, such as backhoes and dump trucks. We provide around-the-clock repair and maintenance services and maintain our office in Milwaukee. Since its founding in 1932, JM Brennan has been a family-run business. We are centrally situated close to downtown Milwaukee, serving the entire southeastern Wisconsin area.