About J M Brennan Inc

J.M. Brennan, Inc. is a mechanical contractor performing HVAC, Plumbing, Process Piping, Industrial Sheet Metal, Controls, and Service for the Industrial, Commercial, and Healthcare customers in southeastern Wisconsin.

What employees say

“I have the opportunity to be part of something larger that makes a difference. I love that I have the flexibility when needed.”
“It allows me the flexibility to enjoy my life while still being productive at my job.”
“We are able to still grow while others are stagnant. ”
“The way I am treated. ”
“We are given the tools and latitude to be successful at doing our job.”
“I feel that my efforts are appreciated and our owners continue to reinvest into the company.”
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Where to find J M Brennan Inc