Compliance

Certificate of Insurance (COI)

A certificate of insurance (COI) is a one-page document proving a cleaning vendor carries valid liability and workers’ compensation coverage, naming policy limits and often the client as an additional insured.

Written by CleanQuote Editorial TeamReviewed by Facilities Operations Review BoardLast reviewed June 2026

In Depth

Buyers request a COI before work begins to confirm coverage for property damage, injuries, and employee claims. The client is frequently added as an "additional insured" so the vendor’s policy responds first to covered incidents on site.

Why It Matters

Hiring an uninsured cleaner exposes the building owner to liability for on-site injuries and damage. A current COI is a baseline vendor-vetting requirement.

Related Terms

Related Resources

Frequently Asked

What is certificate of insurance in commercial cleaning?

A certificate of insurance (COI) is a one-page document proving a cleaning vendor carries valid liability and workers’ compensation coverage, naming policy limits and often the client as an additional insured.

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