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We Dedicate Our Effort

To Be The Best At What We Do

Mechanical, Fire Suppression & Service Contractors

John E. Green Company (JEG) is a national leader in the mechanical contracting & fire suppression industry. We continually strive to improve all our project delivery processes through innovation, technology, and adhering to our Core Values of Safety, Quality, Integrity and Service. Over the years, JEG has gained knowledge installing all types of mechanical systems that has created an experience level second to none. JEG prides itself on being recognized by Engineering News Record as one of the largest specialty contractors in the United States.

  • Piping

  • Plumbing

  • Fire Suppression

  • HVAC

  • Fabrication

  • Design Build

SAFETY | QUALITY

INTEGRITY | SERVICE

A TEAM WITH VALUE

JEG GENUINELY CARES

  • 115

    Years in Business
  • 1,000+

    Corporate & Skilled Trade Employees
  • 5th

    Generation Owned
See What Sets Us Apart

Explore our

Projects

MARKETS

A Leader Across All Industries

As a national leader, we have experience working in a variety of industries and markets across the Eastern half of the United States.

  • Municipal

  • Healthcare

  • Industrial

  • EV/Automotive

  •  
  • Education

  • Yellow lab icon

    Laboratory

  • Resort/Entertainment