Commercial Inside Wireman and Residential Wireman are offered at four training facilities throughout the state of California: Sacramento Region, San Diego, and Riverside, as well as our newest training facility in Fresno (opening soon!). Low Voltage is offered at our Sacramento Region and San Diego facilities. Our experienced instructors and established curriculum are helping to train your electrical workforce of tomorrow. A WECA apprentice's school tuition costs are paid by the WECA Member Contractors who employ them. WECA Apprentices attend classes in an accelerated and intensive format consisting of full-time classroom training and hands-on labs for two consecutive weeks every five to seven months. Each two-week session is equal to one semester of classroom instruction.