JEN Mechanical Inc.
      Affton School District
      Alton CUSD
      Belleville CUSD
      Bethalto CUSD
      Bond County School District
      Cahokia CUSD
      Centralia CUSD
      DuQuoin CUSD
      Edwardsville CUSD
      Evangelical School
      Fairfield CUSD
      Ferguson Florissant School District
      Fr. McGivney Catholic High School
      Gillespie CUSD
      Goddard School
      Granite City CUSD
      Hazelwood School District
      Herrin CUSD
      Jerseyville CUSD
      Johnston City CUSD
      Lebanon CUSD
      Litchfield CUSD
      Little Flower School
      Marquette Catholic High School
      Montessori
      Pleasant Plaines CUSD
      Ramsey CUSD
      Roxana CUSD
      St. Ambrose - Godfrey
      St. Mary’s – Alton
      St. Peter & Paul - Alton
      TRIAD CUSD
      Valley Park School District
      Vandalia CUSD
      Winfield High School

 

JEN Mechanical Inc.
General Number 618-433-1720 (more)