Where cleaning touches other contracts
Waste is the most obvious overlap. Bins have to be presented, collected and returned, and the timing has to fit both the collection schedule and the cleaning attendance. Pest control depends on cleaning standards and generates findings the cleaner should know about. Security controls access and needs to know who is in the building and when. Each of those is a handoff and each is a point where something is either passed on or quietly lost.
Maintenance is the least discussed and often the most consequential. A blocked drain, a failing door seal or a leaking fitting all present first as a cleaning problem, and the cleaner is usually the person who notices. Whether that observation reaches your maintenance contractor depends entirely on whether somebody set up a path for it That path is worth establishing during the comparison rather than after a defect has gone unreported for a month.
