The Pipefitters LU 539 Joint Apprenticeship Training Committee provides the best training available in the Pipefitting and HVAC/R Service Industry. We have state-of-the-art equipment and industry-certified instructors and offer two apprenticeship training programs, Construction Pipefitting and HVAC/R Service Technician. Our five-year program apprenticeship programs combine intensive technical classroom instruction at the school’s state-of-the-art facility with on-the-job training. Our apprentices gain the skills needed to enter a high-wage industry. Learn more about why an apprenticeship with UA Local 539 will provide the high-quality training you need to ensure a high-paying career.