Maintenance Worker salary at Ontario

The average maintenance worker salary at Ontario was $52,988 , which is 38 percent lower than the average salary for this job in California, but 6 percent higher than the national average for this job . Maintenance Worker salaries at Ontario typically range from $27,259 to $78,510 (25th to 75th percentile). The highest reported maintenance worker salary was $94,713. There are 11 employees at Ontario with the job title maintenance worker.