Our purpose is securing employment…

while defending their rights and advancing their interests through education and cooperation.


Commercial/ Industrial Insulation

Specialties: Hospitals, Schools, Pharmaceutical, Petrochemical, Marine, and Power Plant Facilities.

Firestop Compartmentation

Specialties: Mechanical, Electrical, Plumbing, and Seismic Expansions.

Asbestos/ Lead/ Mold Abatement

Specialties: Asbestos, Lead, Mold, Hazardous Material Handling, etc.


  • The April Regular Union Meeting has been changed to April 26, 2019 7:00pm. Location for the meeting will be at the Local 5's Union Hall, 3833 Ebony Street,  Ontario, CA  91761

  • It is with sadness that I must announce, Brother Tom Herbert passed away this morning….

Celebration 100 years of justice, equality, and fairness in workplace.  About Us