a 'maintenance' worker [=a worker whose job is to keep property or equipment in good condition]
The building has suffered from years of poor 'maintenance'.
She works in the company's 'maintenance' department.
(..) Can I ask why? Because he attacked me. Sir. We recovered this from an elevator maintenance vehicle parked in the lower garage. Stolen plates. Must have been how the suspect gained access. This mean anything to you, (..)2018 Fifty Shades Freed