Insulator at Southern California Heat & Frost Insulators Joint Apprenticeship Program
at Southern California Heat & Frost Insulators Joint Apprenticeship Program in Ontario, CA
About This Program
The Southern California Heat & Frost Insulators Joint Apprenticeship Program, located in Ontario, CA, offers a paid, four-year pathway into the professional insulation trade. This program prepares apprentices to work on large-scale commercial and industrial insulation projects throughout the Southern California region.
Apprentices complete 8,000 hours of on-the-job training and 576 hours of related technical instruction. On the job, they learn to apply insulation to mechanical systems including pipes, ducts, and equipment. Classroom training covers insulation materials, safety practices, energy efficiency standards, and applicable building codes.
Graduates earn journeyman insulator credentials, positioning them for stable, long-term employment in a trade that supports construction, manufacturing, and energy sectors. The insulation trade offers skilled workers consistent work across both new construction and retrofit projects.
Wage & Training
OJT Hours
8,000
RTI Hours
576
Duration
4 years
How to Apply
What to Expect as an Insulator Apprentice
Duration
4 years of combined on-the-job training and classroom instruction
On-the-Job Training
~40 hours/week of hands-on work under journeyman supervision (8,000 total hours)
Classroom Instruction
576 hours of related technical instruction (~144 hours/year)
Paid Training
You earn a wage from day one, starting at a percentage of the journeyman rate and increasing as you progress
Time-based program: You'll progress through the program based on completing a set number of hours in both on-the-job training and classroom instruction.
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Apprenticeship
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