for 40+ Years
Who We Are
Whether you’re a homeowner or a business owner, seek HVAC repair or installation services, are interested in investing in home automation or an indoor air quality system, you can be assured that you’ll receive the best service in town.
Founded in Portage, WI, we’re available to assist customers throughout Baraboo and Wisconsin Dells.
Meet Bob Marquardt
Owner & Founder of Johnson Mechanical, LLC
The company I was working for did plan and spec and design build HVAC projects where I was working with outside engineers to go design the projects that we were working on. With some additional engineering classes that I took and the experience of doing design build projects I was able to take my designers license for HVAC and have held that license in good standing since 1997.
I continued in the industry since that time working in the Madison Market as a design build project manager from that time forward specializing in Industrial, health care clinics and clean rooms design build projects.
In 2015 when Johnson Mechanical became available for purchase, I decided to buy in with my business partner Vernon Carlson who was a technician that has worked with Johnson Mechanical for 20 plus years and has been a friend for over 20 years. I have been enjoying working in the residential and light commercial industry it is more customer oriented and rewarding to help my clients out directly.
“Went above and beyond! [Systems are] up and running and working amazing! Will be using them for all future repairs and replacements!”