ABOUT US2022-09-15T13:08:20+00:00

Est. 1983
Mendon, Michigan

After seeing a need and rising to the challenge, Patrick Jergens, a pipefitter by trade, founded a company that would excel at providing exceptional mechanical contracting services. It was his drive and vision that built this company along with a commitment to supplying services and products unrivaled in their dependability and quality. With a work ethic grounded in integrity and service, he forged a company able to meet all challenges of mechanical contracting.

Later, Pat’s son, Tim, took over the reigns as President. With a company motto of “Where Quality Meets Integrity” driving his business practices, he oversaw the growth of many divisions to improve the company’s ability to meet all of the customer’s needs.”


The company added Building & Remodeling.


Jergens adds an Auto Shop to not only maintain their vehicles but to the public.


The company added Painting & Blasting to meet the needs of the customer.

Painting Ag Tank

Custom Covers was added to supply covers for residents that needed upholstery done for their boats, furniture, grills, etc.


Auto Repair / HVAC Fabshop

Purchased this building to expand our options as a growing business and it has become the home for our HVAC and Auto Repair Divisions.


Jergens saw a need for HVAC within St. Joe County and added this service to meet that need.


Portage Fabshop

Added to increase our presence in Portage/Kalamazoo Michigan, and now is the base for our Insulation Division.

Mendon Fabshop

Built to expand our fabricating and welding capabilities.


In addition, the company saw a need for Removable Covers and expanded their services for insulation products

The company added millwrights to their arsenal of services.


Mark Parks

Mark, Pat’s son-in-law, graduated from Michigan State in 1987 with a Bachelor of Mechanical Engineering degree and started working at the Upjohn Company as facilities engineer for roughly 7 years before joining Jergens in 1994. Mark started as an estimator in the newly created Insulation Division.  He was an integral part of the overall growth of the Insulation Division. Mark became the Vice President in 2001 and has helped support and manage the growth of the company. Mark retired in 2021 but still plays an active role in the company and is continuing to share his experience wherever there may be a need.


Tim Jergens


Tim graduated from Michigan State with a Bachelor of Science degree in 1993 and joined the family business that same year. Tim began as a laborer for his father and worked his way up to estimator, then eventually taking over the company as President in 2001.  During his time as President, Tim has led the company, seeing substantial growth through the addition of multiple trades, in order to improve the company’s ability to meet all of our customers needs. Tim continues to be actively involved with the daily functions of the overall company.


Insulation was added to diversify our services to the customer.


Founded in 1983 by Patrick Jergens which primarily focused on providing piping services.

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