Night Crew Hours and a Robot Lease Quote, Compared Side by Side

What does a night crew really cost per shift?

A night crew's visible cost is its hourly wage. Its real cost is the full set of hours it takes to get a floor clean: base pay, overtime when someone calls out, the time spent replacing people who leave, and the floor that stays dirty when a shift goes unfilled. A robot lease quote arrives as one fixed lease payment, set after a site assessment. Comparing that single figure against one hourly wage tells you very little.

A fair comparison puts both options on the same floor area and the same hours. Measure the square footage, set the window in which the floor must be ready, such as before the morning opening, and then cost both paths for that window. The gap usually hides in the schedule, because the wage line looks modest until overtime and turnover are added.

What does the base wage line show?

The U.S. Bureau of Labor Statistics reported a median of $17.27 per hour, or $35,930 per year, for janitors and building cleaners in May 2024. The same occupation's projected employment growth is 2% for 2024 to 2034, which the BLS describes as slower than average. Those figures give you a starting point, not a finished budget. They say nothing about your overtime, your turnover or the shifts you cannot fill.

Use the BLS median only as a reference for your own pay scale. A night crew in your market may earn more or less, so replace the median with the rate you actually pay, plus any night premium you add.

How much does turnover add to the bill?

Turnover is where night crew costs tend to outrun the wage sheet, and the estimates vary widely. One janitorial industry blog puts annualized turnover at roughly 100% to 400%, with about 200% the most cited median, according to SweptWorks. Netchex says annual separation rates in janitorial and cleaning services commonly exceed 50%. These are vendor and association claims, not government statistics, so they are useful for direction rather than for your budget.

Other sources land in a narrower band. A Cleanlink reader survey found an average of 73%, although that article is older. Janitorial Manager reports about 64% for the broader professional and business services category, which includes janitorial work. The spread itself is the lesson. Pull your own separation count for the last twelve months and use that figure, along with what each departure actually costs you to replace.

What do overtime and unfilled shifts add?

Overtime is the line most managers see first, and it is often the smaller of the two gaps. When a night cleaner calls out, someone else stays late or the shift goes unfilled. An unfilled shift does not disappear from the budget. It moves into the day, where a busy day crew absorbs it, or the floor simply goes uncleaned.

The cost of missed coverage is real even though no invoice records it. A lobby that is not scrubbed before opening, a restroom that is not restocked, or a warehouse aisle that goes a week without a pass each shows up later as complaints, slip hazards, or a call to a day crew at premium rates. Count those hours beside the overtime line, not after it.

How do you set up the same floor and hours?

Start with a floor map. Record the square footage of each zone, the surface type, and the window the floor must be ready in. Then log every task a night crew performs inside that window, from scrubbing and sweeping to restroom checks, and time the walking between zones. Walking time is often missing from crew estimates, and it is where a robot route is most likely to save time or cost it.

Service Robot Co. follows the same sequence. We run a site assessment, map the floor, and then quote a lease with a term of three years and one fixed lease payment. Because the quote is built from the same floor measurements, the lease quote and the crew hours can be read against identical square footage. We are OEM neutral, so the robot we recommend depends on the floor, not on one manufacturer's catalog.

What belongs on both sides of the comparison?

Build the comparison as a set of rows that can be named on both sides. If a cost appears for the crew, it needs a matching line for the robot, and if the robot quote includes something, the crew estimate should show what it replaces.

• Labor for the full window, including base pay, overtime and any night premium
• A turnover allowance based on your own separation count and your measured replacement cost
• Coverage for unfilled shifts, counted as floor left uncleaned or work moved to daytime labor
• The lease quote, including its term, its fixed lease payment and what that payment includes
• Service and repair coverage, including how quickly a unit returns to the floor after a fault
• Backup coverage when one unit is down, and who provides it

Where does a robot fit, and where does it not?

Robots handle the repeatable part of a night floor well: long aisles, open lobbies and corridors where the route stays largely the same. They do not handle a spill that needs judgment the way a person can, so a fair comparison keeps some human time in the plan. Cleaning robots are no longer a niche category. According to a World Robotics 2025 service robots report, as reported by The Cleanzine, professional cleaning robots were the third-largest service robot segment in 2024, with sales up 34% to more than 25,000 units across a sample of 294 suppliers.

That growth shows buyers are testing the option, not that every floor suits a robot. Read the market figure as a sign that the option is mature enough to quote, then let your own floor map decide whether a given zone qualifies.

How should you read the result?

If the lease quote, measured across the same floor area and hours, comes in below the full crew cost including turnover and coverage gaps, the case deserves a closer look. If it comes in above, check whether the crew cost is missing items from the list above before you drop the idea. Either way, a single zone pilot tests the assumptions better than any spreadsheet.

Ask what the quote covers before comparing totals. A fixed lease payment that includes maintenance and fast repair is not the same offer as one that leaves repairs to the customer. Ask also what happens on the nights a unit stops, because that is the moment a crew's backup plan and a robot's backup plan are most clearly tested.