The History of Allied Mechanical Services

Associated Mechanical Services, Inc. is established by Andy Huizinga.

AMS undergoes a change in ownership which resulted in Allied Mechanical Services. Operations continued in facilities located in Kalamazoo, MI and Jackson, MI providing piping, sheet metal, and HVAC services to a commercial, industrial, and institutional client base.

AMS acquires Engineering Plus, Inc., adding mechanical and electrical engineering services.


Addition of 12,000 square foot pipe fabrication shop. 

Branch office opened in Jenison, MI to serve the Grand Rapids and Holland areas with full mechanical services. 

ControlNET, L.L.C. is formed in response to changing temperature controls technology and growing client demand for an independent digital controls contractor. 


Jenison office relocated to a larger facility in Hudsonville to respond to increased business opportunities in the Grand Rapids/Holland market. 

ControlNET establishes branch office in Hudsonville, MI

AMS corporate office and main fabrication shops relocate to a renovated 140,000 square foot facility in Kalamazoo, MI. Engineering Plus and ControlNET join AMS in the new facility, sharing overhead while enhancing collaboration opportunities to enhance customer service. 

Midwest Energy Group, L.L.C. is formed to provide building owners with effective solutions for energy reduction. 



ControlNET began leasing out a building in Warren, MI to use as a new branch for the company.

AMS sold the majority of Midwest Energy Group’s share to the company. This allowed them to operate independently while AMS still held a small portion of their share.

ControlNET purchased an existing building in Swartz Creek in which they will renovate, relocate out of the leased office space in Warren, MI and use as a branch location.  



AMS purchased an existing building in Grand Rapids which they are in the process of renovating.