Pricing an Empty Night Shift Before a Robot Lease Quote

What an open night shift really costs

An open overnight shift costs money whether or not anyone signs a timesheet for it. The cost lands in four places: the hours you pay to cover the gap, any overtime those hours trigger, the floor passes that never happen, and the guest or patient impact that follows. Price all four in hours first, then set the total against a commercial robot lease quote.

A lease quote is only as good as the hours behind it. If the shift log says the floor was mostly covered, the comparison will tilt the wrong way, and the error will not surface until the numbers do. The sections below take each cost in order, starting with the log itself.

Log the hours before you price them

Most sites know roughly how many nights went short. Far fewer know how many minutes were actually lost, or which zones slipped first. A gap you never logged is a gap you priced at zero, so the first job is a plain record kept for several weeks.

Capture these fields for every night that ran short:

Keep the log in whatever form your team already uses. Consistency matters more than sophistication, because a few weeks of clean records beats a season of estimates.

• Scheduled shift start and end, plus the minutes the covering person actually worked.
• Floor passes planned for each zone, and passes completed, with times.
• Hours each covering worker logged in the workweek, so overtime can be found.
• Open shifts by night, with the cause: call out, vacancy, leave, or training.
• Complaints or escalations tied to floor condition, with the time they were raised.

What the base wage does and does not tell you

The Bureau of Labor Statistics reports a May 2024 median of $17.27 per hour, or $35,930 per year, for janitors and building cleaners. It also projects employment in that group to grow 2 percent from 2024 to 2034, slower than the average for all occupations. Those are national figures, so your local market, and what you pay now, may sit above or below them.

Use the median as a sanity check, not a rate card. At that median, an eight hour gap comes to $138.16 in base wages before any employer costs on top of wages. Treat that as arithmetic, not a forecast of what your next hire will cost.

How overtime and night pay change the math

Overtime is the line most often missed in a gap calculation. Under the Fair Labor Standards Act, covered nonexempt employees must receive at least time and one half their regular rate for hours over 40 in a workweek, and that requirement cannot be waived by agreement. The workweek is any fixed, recurring 168 hour period, so the count resets on a schedule you set.

Night work itself carries no federal extra pay under the FLSA. The Department of Labor says the law does not require extra pay for weekend or night work, or for double time, so any night premium comes from your policy, your contract or local rules. For a federal reference point, OPM sets a 10 percent premium for regular work between 6 p.m. and 6 a.m. for general schedule employees, and the Federal Wage System pays 7.5 percent on second shift and 10 percent on third shift. Those rates govern federal workers, not your payroll.

Here is how the overtime line works. If covering the gap pushes a worker past 40 hours, that 41st hour at the median $17.27 is paid at one and a half times, or $25.905. A gap that lands on a worker already at 40 hours carries the steepest hourly cost in the whole calculation.

What a missed floor pass costs beyond wages

A missed pass does not stay missed. Soil tracked through a lobby or corridor gets walked into the next zone, and the day crew inherits catch up work that was never budgeted. Each area carries different expectations, and a visible floor shapes how guests and patients judge the whole building.

Put a value on each missed pass in your own terms. Count the catch up hours it creates, the escalations it generates, and any complaints that reach a manager. Those are the lines most sites leave out, and they belong beside the wage line, not hidden inside it.

How to set the shift total against a three year lease quote

Start by annualizing the logged gap: base hours, overtime hours at time and one half, any night premium you pay, and catch up hours from missed passes. Then extend that total across the length of the lease you are weighing. A three year lease quote needs a three year gap total beside it, covering the same zones and the same hours.

Service Robot Co. offers robot lease options through financing on a 3 year lease, with one fixed lease payment quoted after a site assessment. We finance, deploy, integrate, train and service each unit through a nationwide US engineer network, and we pick the right robots across manufacturers rather than from a single catalog. When you compare quotes, ask each one to state which zones, hours and tasks it covers, and which tasks stay with people.

A floor robot covers the passes assigned to it. Escalations, restocking and anything outside its routes still need a person, so price only the hours the robot actually takes over. A quote that looks cheaper than the gap may simply cover less of it.

Where industry figures fit, and where they stop

According to Business Wire's report on the International Federation of Robotics service robot release, professional cleaning robots ranked third by sales in 2024, up 34 percent to more than 25,000 units, mostly floor cleaning machines. Those figures come from a sample of 294 companies rather than a full market count, and the IFR advises against comparing data across different World Robotics reports.

The same release puts total professional service robot sales close to 200,000 units in 2024, up 9 percent, with transport and logistics the largest category at 102,900 units, up 14 percent. Those numbers show where the market is moving. They do not show what a robot will save at your site, which only your own logged hours can answer.