About John E. Green Company
The John E. Green Company was founded in 1909 and is a fourth generation family-owned and operated mechanical contractor. JEG is consistently rated as one of the largest, most diversified, full-service union mechanical, fire protection, and service contractors operating in the United States.
Specializing in the Automotive, Commercial, Education, Government, Food Service, Healthcare, Industrial, Municipal, Pharmaceutical, and Resort/Entertainment industries, the JEG team is equipped to handle any project of any size.
We offer dedicated, professional, award-winning service in Piping Systems, Plumbing, Fire Protection, HVAC, Fabrication, and Design Build. We also have a 24/7 on-call staff ready to handle any and all emergencies. This includes providing maintenance and repairs when needed for retrofits, computer room air conditioning, refrigeration piping, fire protection systems, and plumbing systems.
Our team offers a unique combination of experience and innovation to ensure the best results for your business. We strive to continually improve all processes and meet applicable statutory and regulatory requirements, so you can be confident in our ability to deliver efficient solutions for your unique needs. Contact the John E. Green Company with any questions or to request a free quote and learn more about one of the country’s only mechanical contractors with ISO 9001 & ISO 14001 certifications.
Our team’s extensive experience in the construction sector includes collaborating with a diverse group of stakeholders, such as owners, construction managers, and general contractors, to complete projects. JEG is considered one of the largest specialty contractors in the United States and usually employs over 600 team members, as well as 500-900 skilled tradespeople. Our company operates as a union contractor across the country and has offices located in Michigan and Tennessee.
