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

Industrial

Construction

J.M. Brennan, Inc.

J.M. Brennan, Inc.

Org chart

Teams

Engineering and Construction Management

Financial Operations

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