The average head janitor salary at SUNY was $73,761 , which is 2 percent lower than the average salary for this job in New York, but 97 percent higher than the national average for this job . Head Janitor salaries at SUNY typically range from $66,443 to $78,464 (25th to 75th percentile). The highest reported head janitor salary was $113,038. There are 20 employees at SUNY with the job title head janitor.