UA Local 250 represents hvac/r in Los Angeles, CA (SoCal). Below: wage scale context, jurisdiction, apprenticeship routes, and the signatory contractors that hire from this hall.
UA Local 250, known as the Steamfitters and Air Conditioning / Refrigeration Mechanics, is one of the largest and most influential locals within the United Association. Headquartered in Los Angeles, this union provides the skilled labor force necessary for the massive industrial and commercial infrastructure of Southern California. Since 2014, our firm has tracked the workforce trends of this local, which represents thousands of members across two distinct divisions: the Steamfitter Division, focusing on heavy industrial and high-pressure piping, and the Refrigeration Division, focusing on HVAC service and installation. This dual-focus allows the local to dominate both the construction and long-term maintenance sectors of the regional economy.
The market reach of Local 250 is defined by the high density of critical infrastructure in the Los Angeles basin, ranging from massive petrochemical refineries to high-rise commercial developments and essential healthcare facilities. Because of the technical complexity required for high-pressure steam systems and advanced climate control, Local 250 members undergo some of the most rigorous training in the United Association. For signatory contractors and tradespeople, understanding the specific dispatch rules and wage structures of Local 250 is vital for accurate project bidding and career planning in the competitive Southern California mechanical landscape. This local serves as a primary benchmark for labor costs across the entire West Coast.
As of the August 18, 2025 adjustment, the journeyman hourly rate for Local 250 is set at $58.28, contributing to a total package of $80.99 when including fringe benefits. This $22.71 difference covers critical employer-paid contributions to pension and healthcare funds. Apprentices enter the program at a percentage of the journeyman rate, typically starting around 40% to 45% and receiving incremental raises every six to twelve months as they complete required classroom hours and on-the-job training milestones. By the fifth year, senior apprentices earn approximately 80% to 85% of the full scale. This structured progression ensures that labor costs remain predictable for the 109 signatory contractors we track, while providing a clear path to middle-class earnings for those entering the pipe trades in Los Angeles.
The territorial jurisdiction of UA Local 250 primarily covers Los Angeles County, but its influence and dispatch reach extend through specific agreements into neighboring regions to ensure manning for large-scale industrial projects. The charter covers a vast array of work including steam heating, power piping, hydraulic systems, and specialized refinery maintenance. In the Refrigeration Division, the jurisdiction is often broader, covering service contracts that span the greater metropolitan area. Members are dispatched from the Gardena headquarters to jobsites ranging from the ports of Long Beach and San Pedro to the high-tech corridors of the San Fernando Valley. Contractors must adhere to specific travel pay and subsistence rules when work is performed outside the immediate Los Angeles core.
The contractor landscape for UA Local 250 is diverse, currently consisting of 109 signatory entities ranging from global mechanical primes to specialized local service firms. A significant portion of the man-hours is generated by large-scale industrial contractors operating within the South Bay refinery complex and the regional utility infrastructure. Additionally, the market supports a robust contingent of commercial HVAC service contractors who maintain the climate systems of the region's expansive office and healthcare portfolios. Hiring typically fluctuates based on major planned refinery turnarounds and large-scale public works projects. For the tradesperson, this means opportunities exist in both stable, long-term service roles and high-intensity, short-term construction or maintenance outages.