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Certificate of Insurance for Cleaning Contractors: How to Get, Read, and Use a COI
By Opora editorial team · 9 min read
The first time a commercial property manager asks for your COI, it can feel like a bureaucratic hurdle. In reality, the certificate of insurance is a snapshot of your entire insurance program — and sophisticated clients are reading it more carefully than you might expect. Understanding what's on the document (and what's not) keeps you from the two most expensive COI mistakes: losing a contract because yours was wrong, or going into a loss situation without the coverage you thought you had.
What a Certificate of Insurance Is — and What It Isn't
A certificate of insurance (COI) is a summary document — typically the ACORD 25 form — that your insurance agent issues to prove you have coverage. It lists:
- Policy types in force (CGL, auto, workers' comp, umbrella)
- Insurer names and policy numbers
- Policy effective and expiration dates
- Coverage limits
- Named insured (your company)
- Certificate holder (the party requesting the COI)
- Additional insureds, if any
What a COI is not: The COI is not the policy. It does not create or modify coverage. A 1978 ACORD disclaimer states explicitly: "This certificate is issued as a matter of information only and confers no rights upon the certificate holder." Courts have repeatedly held that a COI cannot expand coverage beyond what the underlying policy provides.
This matters because clients sometimes demand COI language that promises things your policy doesn't deliver. A knowledgeable client will request the actual endorsement form — not just a line on the COI.
Anatomy of the ACORD 25 Form
The ACORD 25 (2016/03) is the industry standard certificate form. Here's what each section covers:
| Section | What It Contains | What Clients Look For |
|---|---|---|
| Producer | Your insurance agent/broker name and contact | Who to call for verification |
| Named Insured | Your legal business name and address | Must match contract signatory exactly |
| Insurer A–F | Carrier names (and NAIC codes) | A.M. Best rating ≥ A- / VII required by most commercial clients |
| General Liability | Policy number, dates, limits | $1M per occurrence / $2M aggregate minimum |
| Automobile Liability | Any Auto / Owned / Hired & Non-Owned | Whether rented vehicles and employee vehicles are covered |
| Workers' Comp | Statutory / Employer's Liability limits | Required in nearly every commercial contract |
| Umbrella / Excess | Per occurrence / aggregate | Confirms total limits if stacked |
| Additional Insured | Named parties, endorsement reference | The most contested section |
| Certificate Holder | Client name and address | Confers notice rights only, not coverage |
| Description of Operations | Space for endorsements and project specifics | Where "additional insured" language appears |
| Cancellation Notice | Days' notice before cancellation | 30 days standard; 10 days for non-payment |
The Additional Insured Endorsement
The most important — and most misunderstood — COI request is the additional insured (AI) endorsement. When a commercial client asks to be listed as an additional insured, they're not asking for a line on a form: they want a formal endorsement attached to your policy that extends your CGL coverage to them for claims arising from your work.
The standard endorsement is ISO CG 20 10 (ongoing operations) and CG 20 37 (completed operations). A property manager who asks to be an additional insured is asking for both.
What AI Status Actually Provides
An additional insured receives:
- The right to be defended under your policy if named in a lawsuit arising from your work
- Coverage for claims that arise from your operations at their property
- Notice of policy cancellation (per the cancellation clause)
An additional insured does not receive:
- Coverage for their own sole negligence (most modern forms carve this out)
- Coverage for claims unrelated to your operations
- Rights to submit claims directly to your insurer without you being involved
The Blanket vs. Scheduled AI Endorsement
Two types of AI endorsements exist:
Blanket additional insured: Automatically extends AI status to anyone you're contractually required to name — without a separate endorsement for each client. This is the practical choice for cleaning companies with many commercial clients. Requires a contract between you and the client that requires AI status.
Scheduled additional insured: Lists specific named parties in the endorsement. More burdensome to maintain; appropriate only when clients have specific requirements (e.g., government contracts with precise endorsement language).
Ask your agent for blanket additional insured language as a standard feature on your CGL policy. The cost differential is minimal; the administrative simplicity is significant.
How to Request a COI
COI requests go to your insurance agent or broker — not the insurer directly (unless you're on a direct carrier platform). The process:
-
Contact your agent with: - Certificate holder name and address (exactly as the client wants it) - Whether they require AI status - Whether they require a specific policy limit - Any specific "description of operations" language the client has requested - Urgency (standard requests take 24–48 hours; same-day is possible but may incur rush fees)
-
Agent issues the ACORD 25 and emails or uploads to your client's vendor portal.
-
Review the certificate before sending — verify the named insured matches your company name exactly, limits are correct, and the effective date is current.
Not sure whether your current policy can support the AI endorsements your clients are requiring? Use Opora's Insurance Comparison Tool to see what coverage configurations other cleaning companies in your revenue tier are carrying, and identify gaps before a client does.
COI Requirements by Client Type
| Client Type | Typical CGL Limit Required | Workers' Comp Required? | AI Endorsement? | Notes |
|---|---|---|---|---|
| Residential homeowner | None (informal trust) | Rarely requested | No | Verify your policy covers residential work |
| Small commercial (under 20 employees) | $1M/$2M | Sometimes | Sometimes | 30-day cancellation notice common |
| Property management / multi-tenant | $1M/$2M | Yes | Yes (blanket) | Building owner often wants AI |
| Healthcare / medical office | $2M/$4M | Yes | Yes | May require CG 20 10 + 20 37 specifically |
| School / government | $2M/$5M | Yes | Yes + waiver of subrogation | WOS endorsement needed |
| Large commercial / Fortune 500 | $5M (w/ umbrella) | Yes | Yes + primary/noncontributory | Primary/noncontributory endorsement required |
The waiver of subrogation (WOS) endorsement is increasingly required alongside AI status. A WOS prevents your insurer from suing the additional insured to recover claim payments — which commercial clients want because it eliminates the risk of your insurer coming after them after paying your claim.
The primary and noncontributory (P&NC) endorsement states that your coverage pays first, ahead of any insurance the additional insured may carry. Without it, carriers can argue that losses should be shared proportionally — which creates coverage disputes clients want to avoid.
Request blanket waivers of subrogation and primary/noncontributory endorsements from your carrier when entering commercial contracts that require them.
Common COI Mistakes That Cost Cleaning Companies Contracts
Verifying a Subcontractor's COI
When you hire subcontractors, their certificate of insurance should name you as an additional insured. This is non-negotiable for commercial cleaning operations — if a subcontractor causes a loss and carries no insurance, your policy (and your profitability) absorbs the claim.
Subcontractor COI checklist:
- Named insured matches the entity performing work (not a personal name if it's an LLC)
- CGL limits at least equal to yours (or what your contracts require)
- Workers' comp listed (if they have employees; in some states, sole proprietors are exempt)
- Your company is listed as additional insured
- Policy expiration date is after the contract period
- Insurer NAIC A.M. Best rating noted (verify at bestinsuranceratings.com)
Store subcontractor COIs in a dedicated file — physical or cloud — and log expiration dates on your calendar. An expired sub COI on an active job is a coverage gap that an auditor or opposing counsel will find.
Key Takeaways
- The COI is a summary, not the policy — always verify that endorsements (AI, WOS, P&NC) are actually attached to the policy, not just referenced on the ACORD 25.
- Blanket additional insured endorsements are the most efficient way to handle multi-client commercial operations — get this built into your policy at renewal.
- Commercial clients tier their requirements by risk: healthcare and government accounts require higher limits, specific endorsements, and carrier ratings that small online-market policies often can't satisfy.
- COI tracking is an operational function — set renewal alerts, update all client portals at each renewal, and never let a COI lapse mid-contract.
- Require your subcontractors' COIs naming you as AI before they set foot on any job site.
Related Reading
Frequently Asked Questions
Will a client ask for a COI before I ever set foot in the building?
Almost always, yes. About 72% of commercial cleaning contracts require a certificate of insurance before first service, and the request lands before you are allowed on site rather than after you have started the job. Treat the COI as part of your onboarding paperwork, not a formality you can send along with your first invoice.
If I hand a client a COI, are they now covered under my policy?
No. The ACORD 25 is informational only, and the form's own disclaimer states that it confers no rights on the certificate holder. Courts have repeatedly held that a COI cannot expand coverage beyond what the underlying policy already provides. That is exactly why sophisticated clients stop asking for the certificate and start asking for the actual endorsement form.
When a facilities manager reviews my ACORD 25, what gets checked first?
The named insured, compared against whoever signed the contract. Your legal business name has to match exactly, and a mismatch there stalls the file before anything else gets read. After that comes the list of policy types in force, the limits, the effective and expiration dates, and any additional insureds listed on the certificate.
Why do experienced clients ask for an endorsement instead of just the certificate?
Because the endorsement is the document that actually changes the policy, and the certificate is not. A COI summarizes what a policy says on a given day; an additional insured endorsement is the contractual language inside the policy itself. Clients who have been burned by a certificate that promised coverage the policy never granted learn to ask for the form that carries legal weight.
How we built this guide
Opora editorial sources from BLS OEWS wage tables, ISSA-447 production rates, NCCI workers' compensation classifications, EPA List N, OSHA 29 CFR standards, and primary state regulatory filings. We don't recycle blog posts — we audit primary documents.
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