J.M. Brennan is a mechanical contractor dedicated to providing high performance HVAC, Building Controls, Plumbing, Process Piping, Industrial Sheet Metal, Fire Protection & Monitoring.  We employ over 400 of the most highly skilled Pipe Fitters, Plumbers, Sheet Metal Workers, Sprinkler Fitters, Service Techs, and Controls Techs.  We provide engineering, sustainable design, and service 24/7.  Our customers include industrial, commercial, and healthcare facilities throughout Southern Wisconsin including Milwaukee and Madison.

Building Supplies

Construction

Industrial

J.M. Brennan, Inc.

John Brennan III

Matt Brennan

Justin Harer

The Engineering and Construction Management team at J.M. Brennan, Inc. is responsible for overseeing the design, planning, and execution of mechanical construction projects. This team collaborates to ensure high-quality delivery of HVAC, plumbing, and fire protection systems, utilizing advanced BIM/VDC technologies to enhance efficiency and precision. They coordinate cross-disciplinary efforts, manage project timelines, and maintain client communication to ensure successful project completion in industrial, commercial, and healthcare sectors.

Engineering and Construction Management

About

Team members

Other teams at J.M. Brennan, Inc.

Financial Operations