J.M. Brennan Inc., established in 1932, stands as Milwaukee's premier mechanical contractor, offering a wide range of services tailored to meet the needs of its diverse clientele. Specializing in design, the company works diligently to create systems that are not only efficient but also adaptable for the future.
With a proud history rooted in quality and value, J.M. Brennan excels in construction and installation projects, ensuring impeccable workmanship at every stage. The company's commitment to excellence is further highlighted through its round-the-clock service, where highly skilled technicians are equipped to handle any maintenance or emergency needs promptly.
With 93 years of invaluable industry experience, J.M. Brennan has established itself as a trusted name in the field, offering custom solutions for new construction, remodels, equipment installations, and ongoing maintenance services to clients in Wisconsin and beyond.
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