Family owned for over 50 years, Allied Mechanical Services, Inc. has been helping people with a wide variety of mechanical needs. We're proud to say that we are one of Michigan's largest and most experienced full-service mechanical contracting firms. Allied Mechanical Services, Inc. specializes in institutional, commercial, and industrial piping, plumbing, HVAC, and custom sheet metal fabrication along with a 24-hour service department. In addition to these services, we also have the following subsidiaries and DBA’s: Air Components, Inc., provides compressors, blowers, and air tools to manufacturers and contractors plus a 24-hour service department. ControlNET L.L.C., an independent controls contractor that provides open-protocol, full-service digital building control solutions. Third Coast Test and Balance, NEBB certified contractor providing specialized and comprehensive testing and balancing of environmental systems. 43Forty Fabrication Services, a customer-centric national fabrication company focused on pipe fabrication and custom metal solutions with design build capabilities. With offices spread across West Michigan, Allied Mechanical Services is dedicated to its strong, dependable values and its continual expansion of technology.

Windemuller provides advanced technical and design services throughout Michigan and beyond. The family-owned company was established in 1954 as an electrical contractor. Windemuller has since expanded into automation, communications, and IT, electrical services, outdoor utilities, and renewable energy. Within those categories, we have worked on projects relating to Healthcare, Data Centers, Oil and Gas, Pharmaceuticals, Industrial Manufacturing, Life Sciences, Agricultural, and Public Works. Windemuller has branch offices in Southern, Mid Michigan, and Northern Michigan with additional satellite offices in Big Rapids, Charlevoix, Kalamazoo, and Whitehall.

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. The Insulation division was added in 1994 to further meet the needs of Jergens’ expanding customer base. 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 addition of five new divisions. Millwrights, Removable Covers and Construction Management divisions were added in 2005-2006 and have continued expanding into Custom Covers more recently. In the last five years a Painting & Blasting and HVAC division have each found a home under the Jergens’ name. Jergens Piping Corporation has expanded exponentially since its inception in 1983, and in doing so, hopes to be able to exceed the customers’ industrial/commercial piping project expectations.

W. Soule is a custom fabricator and industrial mechanical contractor specializing in custom metal fabrication, process and utility pipe fabrication & installation, ASME vessel fabrication, millwright services, high purity piping and HVAC/maintenance service. W. Soule was established in 1946 as a small plumbing contractor. The company has grown to become a well-established, multi-faceted industrial contractor employing over 400 engineers, managers, administrative professionals and union skilled trade personnel. Our 70+ years of unrivaled experience, dexterity and skill deliver innovative solutions for our clients'​ complex and unique situations.

Total Fire Protection (TFP) is one of the most trusted fire and life safety providers in the country. Since 1999, TFP has provided world-class fire and life safety services to hundreds of corporate and municipal clients across the United States. TFP has grown into the industry leader we are today by executing our mission, which would not be possible without our valued employees and customers. We pride ourselves on creating an engaging and rewarding work environment for everyone who works for us. Our employees allow us to provide our customers with world-class fire and life safety services 365 days a year. And we strive to build long-lasting relationships with every client we serve. With that said, our mission is: Embracing Relationships, while keeping you safe and delivering First Class Service. Our core values are as follows: I. 5-ALARM GROWTH Being evolutionary allows us to embrace change, continue to learn, and stay fully engaged for constant improvement. II. TEAM FIRST No matter what challenge we set forth – together we accomplish it better. III. DO WHAT YOU SAY! When your word is what matters most, we deliver on our promises. IV. DO THE RIGHT THING! Building trust, respect, and loyalty is the heart of our culture. V. WE CARE Our passion starts with our employees, our clients, and the community.

We began as a ‘one-horse’ roofing company in 1906. Members of the Sherriff and Goslin families continue to run the company with the same core values that have guided them for the past century: safety, integrity, and friendly service. “Our assurance of continued quality is guaranteed.” That phrase, originally stated by Fred Sherriff, (past president and son of the original founder) has become our mission statement. It defines what we are about. Many of our branch managers and sales team members have been with Sherriff-Goslin for more than 25 years. That is a testament to the value Sherriff-Goslin places on loyalty and trust with both customers and employees. For more than 100 years, integrity, quality roofing products, and professional and friendly service have earned Sherriff-Goslin a reputation for being the most respected and trusted roofing contractor in the Midwest. Phone: 1-800-967-ROOF (7663) Sherriff-Goslin Roofing Company: The Midwest's Roofer of Choice for Over 100 Years.

Creating history through our concrete work. Grand River Construction was established in 1984 with one vision in mind, create industry leading structures that will stand the test of time. Since that date 37 years ago, we have built an amazing team of employees who uphold that vision and continue to showcase our concrete abilities. We have experience in a variety of different sectors including commercial, industrial, healthcare, automotive, energy, infrastructure, and entertainment. We specialize in general contracting and self performing specialty concrete, however our range of services don't stop there. Want to see all of our services and a more in-depth look at our projects, visit our website at https://grandriverconstruction.com/ !

Andy J. Egan Co. offers services beyond most mechanical contractors and fabricators. Our services include engineering, custom fabrication, building information modeling (BIM), design-build, mechanical insulation, process piping, controls and 24/7 service for commercial, industrial and institutional applications of all sizes. The industries we serve include: energy and power, health care, food and beverage, pharmaceuticals, education, water and waste water, hospitality and entertainment, retail, alternative energy and more.

CBS is a leader in state-of -the-art office equipment and service. We are a locally run business offering strategies that employ systems from Xerox, KIP and HP. We are also proud to be part of Xerox Business Solutions, a wholly owned subsidiary of Xerox Corporation.