24/7 EMERGENCY SERVICE: (414) 342-3829 toggle menu Milwaukee's most trusted mechanical contractor since 1932 LEARN MORE WHAT WE DO Design J.M. Brennan works to understand your needs to design a system that works for you today and tomorrow. LEARN MORE Build & Install J.M. Brennan is building on a tradition of quality, workmanship, and superior value. LEARN MORE 24/7 Service J.M. Brennan technicians have the skills for every job, whether that's doing an inspection or repairing a burst pipe. LEARN MORE EXPERIENCED CONTRACTORS 89 years of industry experience CONTACT US 2101 W. St. Paul Ave. Milwaukee, WI 53233 Phone: (414) 342-3829 Fax: (414) 342-3209 ©2021 J.M. Brennan, Inc. Privacy Policy Designed by Savage Solutions

24/7 EMERGENCY SERVICE: (414) 342-3829 toggle menu CAREERS Apply for a Job at J.M. Brennan J.M. Brennan is the leading mechanical contractor in Milwaukee. We back our certified engineers, designers, technicians, and tradespeople with ongoing training and the right resources. We’re interested in talented employees with experience in the industry as well as new people beginning their career. In exchange for dedicated service from our team, J.M. Brennan invests in ongoing education and training, a collaborative environment, and industry-leading employee pay and benefits. To apply, please send an email with your resume to Matt and John at mbrennan@jmbrennan.com and jbrennan@jmbrennan.com. ABOUT J.M. BRENNAN Previous Next 1 2 3 4 5 ABOUT US HISTORY CAPABILITIES CAREERS NEWS 2101 W. St. Paul Ave. Milwaukee, WI 53233 Phone: (414) 342-3829 Fax: (414) 342-3209 ©2021 J.M. Brennan, Inc. Privacy Policy Designed by Savage Solutions

24/7 EMERGENCY SERVICE: (414) 342-3829 toggle menu HISTORY A Legacy of Hard Work John M. Brennan, Sr. emigrated from Ireland and started J.M. Brennan, Inc. at the height of the Great Depression. He served the Milwaukee community for more than 30 years. His son John M. Brennan, Jr. expanded the company’s capability and services over the next 35 years. By 1997, the next generation of Brennans was at the helm. Together, John and Matt Brennan have re-shaped the company as the leading mechanical contractor in Southeastern Wisconsin. J.M. Brennan is proud to be family-owned since 1932. GET IN TOUCH ABOUT US HISTORY CAPABILITIES CAREERS NEWS 2101 W. St. Paul Ave. Milwaukee, WI 53233 Phone: (414) 342-3829 Fax: (414) 342-3209 ©2021 J.M. Brennan, Inc. Privacy Policy Designed by Savage Solutions