Almost every commercial cleaning contract requires a certificate of insurance. The contractor’s broker emails a one-page PDF, somebody files it, and the box is ticked.
Here is what that one-page PDF says about itself, printed in capital letters at the top of the standard form:
“THIS CERTIFICATE IS ISSUED AS A MATTER OF INFORMATION ONLY AND CONFERS NO RIGHTS UPON THE CERTIFICATE HOLDER. THIS CERTIFICATE DOES NOT AFFIRMATIVELY OR NEGATIVELY AMEND, EXTEND OR ALTER THE COVERAGE AFFORDED BY THE POLICIES BELOW. THIS CERTIFICATE OF INSURANCE DOES NOT CONSTITUTE A CONTRACT BETWEEN THE ISSUING INSURER(S), AUTHORIZED REPRESENTATIVE OR PRODUCER, AND THE CERTIFICATE HOLDER.”
That is the ACORD 25 Certificate of Liability Insurance, 2025/12 edition, as published by the New York State Department of Financial Services. The document the entire commercial world treats as proof of insurance opens by stating that it confers no rights on the person holding it and is not a contract.
Which does not make it worthless. It makes it a different thing than most people think: a snapshot, on one date, of what a broker says exists. Read properly, it tells you a great deal. Read as a guarantee, it tells you nothing you can rely on.
So here is how to actually read one, and what to ask for instead.
The three disclaimers, and what each one costs you
One: it confers no rights. Being named in the certificate holder box does not make you an insured. It means a certificate was addressed to you. That is all.
Two: a statement on the certificate is not coverage. The form says this itself, in the paragraph immediately below:
“IMPORTANT: If the certificate holder is an ADDITIONAL INSURED, the policy(ies) must have ADDITIONAL INSURED provisions or be endorsed. If SUBROGATION IS WAIVED, subject to the terms and conditions of the policy, certain policies may require an endorsement. A statement on this certificate does not confer rights to the certificate holder in lieu of such endorsement(s).”
There is a column on the coverage grid headed “ADDL INSD” with a tick box. A tick in that box is a tick in a box. The thing that actually makes you an additional insured is an endorsement attached to the policy — and the form is telling you, in writing, not to accept the tick in place of it.
Three: nobody has to tell you if the policy is cancelled. The cancellation box on the current form reads:
“SHOULD ANY OF THE ABOVE DESCRIBED POLICIES BE CANCELLED BEFORE THE EXPIRATION DATE THEREOF, NOTICE WILL BE DELIVERED IN ACCORDANCE WITH THE POLICY PROVISIONS.”
That is it. No number of days, no addressee, no promise to you. Earlier editions of the form were arguably worse in a more honest way — they said the insurer “WILL ENDEAVOR TO MAIL” a stated number of days’ notice, “BUT FAILURE TO DO SO SHALL IMPOSE NO OBLIGATION OR LIABILITY OF ANY KIND UPON THE INSURER.”
So the practical consequence is the same either way. If your cleaning contractor’s insurance is cancelled mid-term for non-payment, there is no mechanism by which you find out. A policy that simply expires at renewal shows up on your expiration tracking. One cancelled in March does not.
And one line most people have never noticed
Above the coverage grid on the current form:
“LIMITS SHOWN MAY HAVE BEEN REDUCED BY PAID CLAIMS. LIMITS SHOWN ARE INCLUSIVE OF AMOUNTS REQUESTED BY THE CERTIFICATE HOLDER AND MAY NOT REFLECT POLICY LIMIT AMOUNTS IN EXCESS OF THOSE REQUESTED.”
The limits printed on the certificate are the limits as written, not what is left. A contractor carrying a $2 million general aggregate who has already had $1.8 million of claims paid this policy year still shows a $2 million general aggregate on the certificate.
If your contract requires specific limits, that sentence is the reason to ask about loss history as well as limits.
The box-by-box walkthrough
Field names below are as printed on the ACORD 25 form. Work down it in this order.
| Box | What to check | Why |
|---|---|---|
| Date (top right) | How old is this certificate? | It is a snapshot as at that date and nothing more |
| PRODUCER | The broker’s name, phone and email | You will need this to verify — and to look up independently rather than calling the number on a certificate you are trying to verify |
| INSURED | Does this name exactly match the entity on your contract? | A certificate naming a parent company proves nothing about the subsidiary that actually sends the crew. This is the most commonly missed mismatch |
| INSURER(S) AFFORDING COVERAGE / NAIC # | Which carriers, and are the NAIC numbers present | There is no carrier financial-strength rating anywhere on this form. You have to look that up yourself |
| Coverage grid — POLICY EFF and POLICY EXP | Every line separately | A certificate can be perfectly current for general liability and three weeks stale for auto. The dates are per policy, not per certificate |
| Coverage grid — blank rows | Is anything your contract requires simply absent? | A missing line is not a formatting quirk. It means that coverage was never listed |
| COMMERCIAL GENERAL LIABILITY limits | EACH OCCURRENCE / GENERAL AGGREGATE / PRODUCTS-COMP/OP AGG / DAMAGE TO RENTED PREMISES / MED EXP / PERSONAL & ADV INJURY | Compare each against what your contract actually requires, line by line |
| GEN’L AGGREGATE LIMIT APPLIES PER: POLICY / PROJECT / LOC | Which box is ticked | A single aggregate shared across every job the contractor has this year is very different from one that applies per location |
| CLAIMS-MADE vs OCCUR | Which is ticked on the general liability line | Claims-made coverage responds only to claims reported during the policy period, which matters after the contract ends |
| AUTOMOBILE LIABILITY | ANY AUTO / OWNED / SCHEDULED / HIRED ONLY / NON-OWNED ONLY | HIRED and NON-OWNED ticked with nothing else means the contractor insures rented and employee vehicles only |
| UMBRELLA LIAB / EXCESS LIAB | Note the limit — then ask what it sits over | The form does not show which underlying policies the umbrella applies to. A large umbrella above a policy that excludes your risk adds nothing |
| WORKERS COMPENSATION AND EMPLOYERS’ LIABILITY | See the next section — this is the important one | |
| ADDL INSD and SUBR WVD columns | Ticked is not endorsed | Ask for the endorsement. The form itself tells you to |
| DESCRIPTION OF OPERATIONS | Read it, then discount it | Free text typed by a broker. It is a note about what may exist on the policy, not proof of it |
| CERTIFICATE HOLDER | Your correct legal entity and address | Confers no rights, but a wrong name here suggests nobody checked anything else either |
| AUTHORIZED REPRESENTATIVE | Signed | An unsigned certificate is not finished |
The workers’ compensation gap
If you read only one part of a cleaning contractor’s certificate, read this one — and read the question, not the limits.
The workers’ compensation row carries a Y/N indicator and then this printed question:
“ANY PROPRIETOR/PARTNER/EXECUTIVE OFFICER/MEMBER EXCLUDED?”
In many states, including under various arrangements in California, owners, partners and officers can elect out of workers’ compensation coverage on their own policy. Which creates a specific and under-appreciated situation: a small cleaning contractor who has excluded himself holds a workers’ compensation policy that covers nobody who will actually be in your building — because he is the person doing the work.
Why that matters to you rather than to him: if an uninsured worker is injured on your premises, your building is where it happened, and the absence of a workers’ compensation policy that responds is the reason the question gets asked next. The certificate is where you find out in advance.
Also on that row: “PER STATUTE” and “OTHER” boxes for the statutory limits, and three employers’ liability limits — “E.L. EACH ACCIDENT,” “E.L. DISEASE – EA EMPLOYEE” and “E.L. DISEASE – POLICY LIMIT.” Check those against your contract too; employers’ liability is the part that responds when the comp claim turns into a suit against the employer.
And ask one question the certificate cannot answer: are the people working in my building employees of the company on this certificate, or subcontractors? If they are subcontractors, the policy you are looking at may not be the relevant one at all.
Certificate holder versus additional insured
This is the distinction that does the most work, and the form spells it out.
Certificate holder means a certificate was sent to you. It gives you no rights under the policy.
Additional insured means the contractor’s policy has been endorsed to extend coverage to you — so that if you are drawn into a claim arising from their work, their insurer defends and indemnifies you under their policy rather than you turning to your own.
The endorsement is the thing. Commonly, on commercial general liability, that means the ISO CG 20 10 form for ongoing operations and CG 20 37 for completed operations — they are separate, and a contractor endorsed only for ongoing operations gives you nothing once the work is finished. CG 20 26 is another route, covering a designated person or organisation.
Two related endorsements worth knowing by name:
Waiver of subrogation stops the contractor’s insurer coming after you to recover what it paid, even where your own negligence contributed. The general liability version is commonly CG 24 04; the workers’ compensation version is a different endorsement again. One does not imply the other — if you want both, ask for both.
Primary and non-contributory (commonly CG 20 01) determines whose policy pays first. Without it, their insurer can argue your policy should share the loss, which is usually the opposite of what your contract intended.
So the request to make is simple and almost nobody makes it: ask for copies of the endorsements, not just the certificate. A tick in the ADDL INSD column costs a broker two seconds. An endorsement either exists or it does not.
It is also, incidentally, the best protection against a doctored certificate. Forged certificates are easy; forged certificates that arrive with matching endorsement forms are not.
Five things a clean certificate still does not tell you
Employee theft. General liability does not respond to theft by the contractor’s own employees. The coverage that does is a fidelity bond, sometimes sold as a janitorial service bond, and it is a separate thing you have to ask for by name. For a building where a crew is alone after hours, this is arguably the most relevant coverage of all — and it is the one most often missing.
Whether the crew is vetted. No insurance document says anything about background checks, named personnel or access control. Those belong in your scope of work.
California janitorial registration. Janitorial employers in California are required to register with the Department of Industrial Relations, and the registry is publicly searchable. That is a separate check, it takes a minute, and a certificate of insurance tells you nothing about it.
How financially strong the carrier is. There is no rating field on the form. Look the carrier up.
What is left of the limits. See the paid-claims sentence above.
Three honest things
We issue these too, and ours carries exactly the same disclaimer. Every certificate of insurance in commercial cleaning — ours included — says in capitals that it confers no rights on the holder. We would rather tell you that than let you file it believing it does something it does not. If you want protection, ask us for the endorsements.
Asking for endorsements will slow your onboarding down. It takes a broker longer, some contractors will not understand the request, and a few will push back. That friction is the point: it is a test of whether the coverage your contract requires actually exists. Build the extra few days into your timetable rather than skipping the request.
And a clean certificate is not a clean contractor. It tells you about insurance. It tells you nothing about whether the people in your building at nine in the evening have been background checked, whether the company subcontracts, or whether the workers’ compensation policy covers the person actually holding the mop. Those are scope and vendor-diligence questions, and the certificate is not where they get answered.
Frequently asked questions
Does a certificate of insurance prove a contractor is insured?
Only as at the date it was issued, and the form says so itself. The ACORD 25 Certificate of Liability Insurance states that it “IS ISSUED AS A MATTER OF INFORMATION ONLY AND CONFERS NO RIGHTS UPON THE CERTIFICATE HOLDER,” that it “DOES NOT AFFIRMATIVELY OR NEGATIVELY AMEND, EXTEND OR ALTER THE COVERAGE AFFORDED BY THE POLICIES BELOW,” and that it “DOES NOT CONSTITUTE A CONTRACT” between the insurer, the producer and the certificate holder. It is a snapshot of what a broker says exists, not a guarantee that it still does.
What is the difference between certificate holder and additional insured?
Certificate holder means a certificate was addressed to you and confers no rights under the policy. Additional insured means the policy has been endorsed to extend coverage to you. The form is explicit: “If the certificate holder is an ADDITIONAL INSURED, the policy(ies) must have ADDITIONAL INSURED provisions or be endorsed… A statement on this certificate does not confer rights to the certificate holder in lieu of such endorsement(s).” The tick in the ADDL INSD column is not the endorsement. Ask for the endorsement itself — commonly ISO CG 20 10 for ongoing operations and CG 20 37 for completed operations.
What should I check on a cleaning company’s workers’ compensation coverage?
The printed question “ANY PROPRIETOR/PARTNER/EXECUTIVE OFFICER/MEMBER EXCLUDED?” matters more than the limits. Owners, partners and officers can elect out of coverage on their own policy, so a small contractor who has excluded himself may hold a comp policy that covers nobody who will be in your building. Also check the employers’ liability limits — E.L. each accident, E.L. disease each employee, and E.L. disease policy limit — and ask whether the people doing the work are employees of the company named on the certificate or subcontractors.
Will I be told if my contractor’s insurance is cancelled?
Generally no. The cancellation box on the current form says only that “SHOULD ANY OF THE ABOVE DESCRIBED POLICIES BE CANCELLED BEFORE THE EXPIRATION DATE THEREOF, NOTICE WILL BE DELIVERED IN ACCORDANCE WITH THE POLICY PROVISIONS” — no number of days and no promise to the certificate holder. Earlier editions said the insurer would “endeavor to mail” notice but that failure to do so would “impose no obligation or liability of any kind upon the insurer.” A policy that lapses at renewal appears on expiration tracking; one cancelled mid-term for non-payment does not.
Does general liability cover theft by cleaning staff?
No. Commercial general liability does not respond to theft by the contractor’s own employees. The coverage that does is a fidelity bond, sometimes sold as a janitorial service bond, and it must be asked for separately by name. In a building where a cleaning crew works alone after hours it is one of the more relevant coverages, and it is frequently absent from the certificate entirely.
Want someone to read yours with you?
JAN-PRO Commercial Cleaning in Sacramento will go through your current cleaning contractor’s certificate line by line with you — including ours, if we are the incumbent — and tell you which boxes are doing work and which are decorative. We will also send you the endorsements rather than making you ask twice.
Call (916) 376-8977 or request a facility visit online.