John E. Green Company (JEG) is a national leader in the fabrication and installation of plumbing, HVAC, process piping, and fire protection systems. We also specialize in design build solutions and 24/7 emergency service.
JEG prides itself on being one of the country’s mechanical contractors with ISO 9001 & ISO 14001 certifications. We typically employ over 600 team members, as well as 500-900 skilled tradespeople. We work as a union contractor throughout the country and maintain offices in Michigan and Tennessee.