HVAC Jobs in San Diego, CA

Los Angeles County is one of the largest HVAC markets in the country by sheer volume, driven by a massive housing stock spread across distinct microclimates — from the cool coastal zones in Santa Monica and Malibu to the extreme heat of the San Fernando Valley and Inland Empire, where summer temperatures regularly exceed 110°F. The commercial segment is enormous, encompassing entertainment studio infrastructure, logistics and distribution centers, retail, and a dense restaurant sector. The state's Title 24 energy codes add complexity and ongoing training requirements for contractors.

California HVAC contractors are licensed through the Contractors State License Board (CSLB) under the C-20 (Warm-Air Heating, Ventilating and Air Conditioning) or C-38 (Refrigeration) classifications. Technicians must hold a CSLB mechanic certification or work under a licensed contractor. California's refrigerant regulations — the California Air Resources Board (CARB) phasedown schedule — are stricter than federal timelines, and technicians in California should stay current on HFC alternatives and low-GWP refrigerants that are increasingly required in new installations.