J M Brennan

Company Overview

J.M. Brennan, established in 1932, is a mechanical contracting company that operates in the southeastern Wisconsin region. We specialize in the design and installation of boilers, chillers, air handling units, exhaust systems, ventilators, sanitary sewers, water treatment facilities, and heat recovery systems. We also provide piping solutions for food-grade, refrigeration, industrial gas, underground, and compressed air needs. Our team includes experienced designers, engineers, steam and refrigeration fitters, and sheet metal workers. Being family-owned and managed, we use various equipment, including backhoes and dump trucks. J.M. Brennan delivers 24/7 repair and maintenance services and is based in Milwaukee. JM Brennan has remained family-owned and operated since 1932. We are centrally situated close to downtown Milwaukee, serving the entire southeastern Wisconsin area.