J.M. Brennan works to understand your needs to design a system that works for you today and tomorrow. J.M. Brennan technicians have the skills for every job, whether that's doing an inspection or repairing a burst pipe.
Services
J.M. Brennan, Inc. is located in Milwaukee, WI and proudly serves all of Southeastern Wisconsin. We're your single-source mechanical contractor for HVAC, plumbing, process piping, controls, industrial sheet metal, and 24/7 service. The craftsmen at J.M. Brennan understand the mechanics behind every component in your building.
J.M. Brennan is the leading mechanical contractor in Milwaukee. We back our certified engineers, designers, technicians, and tradespeople with ongoing training and the right resources. We're interested in talented employees with experience in the industry as well as new people beginning their career.
J.M. Brennan has spent more than 85 years creating high-performance, tailored solutions for our customers. Today, we continue to build on a tradition of quality, workmanship, and superior value with the latest technology. To plan projects effectively, J.M. Brennan has professional engineers and designers in-house.
Reviews (8)
Greg Banks
Jun 25, 2022
Eric Gould
Jan 15, 2022
To The Max
Oct 26, 2020
Andrew Byrne
Nov 03, 2019
I have worked with JM Brennan on many projects and their dedication to customer service is top notch! They have developed a culture at their organization that is second to none in the Mechanical Contractor space. Their prices are fair and transparent and the staff does a great job of presenting the appropriate sense of urgency!
Amy Baisden
Jun 01, 2019
Journeymen that work there are great, but Brennan sends you a lump sum bill and won't respond to any questions regarding it. I have tried for over 4 months to pay a bill, but I get a different answer every time I ask. I sent a letter to one of the owners, again trying to resolve the $500 plus bill, but never got a response. Horrible customer service.
It's too bad as the journeymen that come out for service have always been great. Other tenants in our building downtown also complain about they feel they have been overcharged many times. We have a great HVAC contractor in Brookfield that we'll have to use in the future.
It's too bad as the journeymen that come out for service have always been great. Other tenants in our building downtown also complain about they feel they have been overcharged many times. We have a great HVAC contractor in Brookfield that we'll have to use in the future.
LLSmokey
Mar 14, 2019
Rageman
Sep 14, 2018
I have worked here for 3 years and it is truly an amazing place. Everyone is super friendly and helpful. The pipe and plumbing fabrication shops are exceptional, and the sheet metal shop is superb. Oh! Don't me get started on the shop warehouse. The shop manager is hands down one of the kindest, chrasmatic, professional, hardworking people I have had the pleasure of having him into my existence.
Too darn bad the scale stops at 5! It should be infinity because the longer you are there the better the experience gets. Thank you JMBrennan, you have brought a new light into my life.
Too darn bad the scale stops at 5! It should be infinity because the longer you are there the better the experience gets. Thank you JMBrennan, you have brought a new light into my life.
Jm Noone
Mar 04, 2016
