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.

J.M. Brennan, Inc.

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Teams

Engineering and Construction Management

Financial Operations

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