John E. Green Company (JEG)
About John E. Green Company (JEG)
John E. Green Company (JEG) is a national leader in the fabrication and installation of plumbing, HVAC, process piping, and fire protection systems. They 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.
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