Many replacements are needed for those who leave the occupation. Preparation Many employers prefer applicants with a high school diploma. Most building maintenance workers learn their skills informally on the job. They start as helpers. They learn by watching skilled maintenance workers.
Helpers begin by doing simple jobs such as fixing leaky faucets and replacing light bulbs.
They go on to more difficult tasks such as overhauling machinery or building walls. Others learn their skills by working as helpers to other repair or construction workers. These workers include carpenters, electricians, and machinery repairers. Skills can also be learned in high school shop classes and postsecondary trade or vocational schools. High school courses in mechanical drawing, electricity, woodworking, blueprint reading, science, and math are useful.