Median of all compensation (including tips, bonus, and overtime) by years of experience.
Custodian Janitors do not generally earn higher incomes from more experience in the field. Workers with less than five years' experience earn around $21K on average, and those who have five to 10 years under their belts see a higher median salary of $24K. For Custodian Janitors, 10 to 20 years of experience on the job amounts to an average salary of $26K. Survey participants who have spent more than 20 years on the job report a predictably higher median income of $30K, demonstrating that compensation is roughly commensurate with experience in the end.