Data · Cleaning

Commercial cleaning: what the data does and doesn't show

Cleaning is less measured than restaurants. There is no equivalent of the National Restaurant Association publishing an annual state of the industry, so some of what gets quoted about janitorial turnover is unsourced. Here is what is actually documented.

Last updated: 2026-09-08 · every figure carries its source and year

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In short: The best-documented facts in commercial cleaning are regulatory rather than statistical: OSHA's Hazard Communication Standard is consistently among the most-cited general industry standards, and it requires chemical training in a manner and language employees can understand. Turnover figures circulate widely but often without a traceable source.

What is well documented: the chemical training obligation

OSHA's Hazard Communication Standard requires employers to train workers on the hazardous chemicals in their work area before first assignment and again whenever a new hazard is introduced, and to do so in a manner and language employees can understand. HazCom is consistently among the most frequently cited OSHA general industry standards.

A purchased course does not cover site-specific training

General awareness courses cover the outreach element. Training on the specific products a crew uses, on the specific sites they clean, remains the employer's responsibility and carries the same comprehension requirement.

State layers exist

Some states go further than federal requirements.

Where the data is thin — and we won't pad it

Reliable, sourced turnover rates for US commercial cleaning are hard to find. Figures in the 200% range circulate widely in industry marketing but are rarely traceable to a published study. We are not going to repeat them. What is not in dispute is that crews change frequently and are often multilingual, which is why site-specific instruction in the worker's own language matters.

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Questions people ask about the numbers

Does OSHA require chemical training in a worker's language?

The Hazard Communication Standard requires training in a manner and language employees can understand. What that means in practice depends on your workforce and situation.

Is an online HazCom course enough?

It covers general awareness. Training on the specific chemicals in your work area and on your job sites remains the employer's responsibility.

When must chemical training happen?

Before an employee's initial assignment where exposure is possible, and again whenever a new chemical hazard is introduced that they have not been trained on.

What is the turnover rate in commercial cleaning?

Widely quoted figures are rarely traceable to a published study, so we don't cite one. Crews are known to change frequently, but we would rather say that plainly than repeat an unsourced number.

Train on your chemicals, in their language.

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