Require four core policies from every commercial cleaning vendor: Commercial General Liability, Business Auto Liability, Workers' Compensation with Employers' Liability, and Umbrella or Excess coverage, with Professional Liability or Pollution coverage added when the scope calls for it. A common minimum floor is $1,000,000 per occurrence and $2,000,000 aggregate for CGL, $1,000,000 for auto, statutory workers' compensation, and $1,000,000 for Employers' Liability. Before work starts, collect an ACORD 25 certificate along with signed Additional Insured and Waiver of Subrogation endorsements and a statement that the vendor's coverage is primary and non-contributory.
TL;DR:
- Routine office janitorial work can use standard limits, but construction cleanouts, healthcare sites, and hazardous material jobs warrant higher limits and umbrella coverage.
- Treat the certificate as a checklist, not proof: match insured names, policy dates, and limits, then inspect signed endorsements and confirm occurrence coverage.
- Require the prime contractor to obtain matching coverage and signed endorsements for every subcontractor, and keep each certificate on file before site work begins.
- Check insurer identity and financial strength, cancellation notice terms, and expiration dates; calendar renewal checks because endorsements can lapse separately from the policy.
Table of Contents
- Which policies to require and what each one covers
- Minimum limits and contract language used in U.S. procurement
- How to verify a contractor's insurance: a practical COI checklist
- Subcontractors and multi-vendor projects: making coverage flow down
- Why an insured nationwide cleaning partner simplifies procurement
- Sparklepro Commercial Cleaning: request a quote and certificate of insurance
- FAQ
- Sources
Which policies to require and what each one covers
Commercial General Liability is the backbone of any cleaning contract. It responds to bodily injury, property damage, products and completed operations claims, and personal and advertising injury, which covers everything from a slip-and-fall during a mopping pass to damage caused after a post-construction cleanout is finished. Completed operations matters especially for post-construction work, since a defect found weeks after the crew leaves can still trigger a claim.
Business Auto Liability becomes necessary the moment a vendor's staff drives to your property, hauls equipment, or transports debris. A janitorial crew using a single van still needs this coverage if that vehicle is ever involved in an accident on or near your site.
Workers' Compensation is a statutory requirement in nearly every state once a cleaning company has employees, and it pays medical costs and lost wages for an injured worker regardless of fault. Employers' Liability rides alongside it and covers claims that fall outside the workers' compensation system, such as a third-party lawsuit alleging the employer's negligence caused an injury. A limit of $1,000,000 is typical for this coverage.
Umbrella or Excess Liability sits on top of the primary CGL, auto, and employers' liability policies, raising the total available limit and filling gaps where underlying coverage runs out. For a large facility or a multi-building portfolio, this layer is often what actually protects you if a claim exceeds the vendor's base limits.
Specialty work calls for specialty coverage. Require Professional Liability when a vendor also advises on cleaning protocols or facility management, and require Contractor's Pollution Liability for jobs involving hazardous waste, mold remediation, or healthcare and cleanroom environments where an environmental release could trigger cleanup costs well beyond standard liability limits.
Minimum limits and contract language used in U.S. procurement
Municipal and university procurement exhibits give a useful benchmark for what to write into your own contracts. The City of Sacramento's cooperative agreement insurance exhibit requires CGL on an occurrence basis with a $1,000,000 per-occurrence minimum, additional insured status, primary and non-contributory wording, and completed operations coverage. The University of Pittsburgh's minimum insurance requirements list a comparable structure: CGL at $1,000,000 per occurrence and $2,000,000 aggregate, auto at $1,000,000 combined single limit, statutory workers' compensation, and $1,000,000 in Employers' Liability, with additional insured language and a waiver of subrogation wherever state law allows it.
These figures are a floor, not a ceiling. Routine janitorial work at an office building rarely needs more than the standard limits above, but post-construction cleanouts, healthcare facilities, and jobs involving hazardous materials justify higher limits and an umbrella layer, given the larger scale of potential claims.
When drafting your own insurance exhibit, name the specific clauses you expect: additional insured status (often referenced by ISO form numbers like CG 20 10 or CG 20 37), primary and non-contributory wording, a waiver of subrogation, and advance notice of cancellation. Ask which insurer is issuing the policy and check its financial strength rating, since A.M. Best guidance is the standard reference procurement teams use to judge whether a carrier can actually pay a large claim.
How to verify a contractor's insurance: a practical COI checklist
A certificate of insurance is only useful if someone actually checks it against your contract requirements. Work through these steps every time a vendor submits a COI:
- Confirm the named insured on the certificate matches the contracting entity exactly, and confirm the COI lists each required policy type with its limits spelled out.
- Check policy numbers and effective and expiration dates, and compare every limit against your contract minimums line by line.
- Verify that endorsements are attached and signed, including the additional insured endorsement, the waiver of subrogation, and primary and non-contributory language, and confirm completed operations coverage appears for any post-construction scope.
- Confirm the insurer's name and, where your policy requires it, its A.M. Best rating, and check that the certificate carries cancellation notice language.
- Store the COI and endorsements in your vendor file, log who verified it and when, and set a calendar reminder ahead of the expiration date.
A few recurring COI problems are worth watching for specifically:
- A COI that references an endorsement by name but has no signed copy attached.
- Limits on the certificate that are lower than what the underlying policy actually carries.
- A CGL policy written on a claims-made basis when your contract assumes occurrence coverage, which changes how and when a claim can be filed.
Pro Tip: Build a one-page COI review form into your vendor onboarding packet so every reviewer checks the same five items in the same order, every time.
The TxDOT certificate of insurance guidance illustrates exactly which fields on an ACORD 25 to inspect, from the description of operations box to the insurer signature block on each endorsement. For a broader compliance walkthrough, our contractor cleaning compliance checklist covers related documentation steps for multi-vendor projects.
Subcontractors and multi-vendor projects: making coverage flow down
A signed contract with your prime cleaning vendor does not automatically protect you from a subcontractor's uninsured mistake. Require the prime contractor to hold every subcontractor to the same coverage types and limits, and require a COI for each subcontractor before that subcontractor sets foot on your property.
Build flow-down language directly into your contract so the obligation is unambiguous:
- The prime contractor must require subcontractors to carry CGL, auto, workers' compensation, and employers' liability at limits equal to or greater than the prime contract's requirements.
- The owner must be named as additional insured on subcontractor policies for any subcontractor performing work on site.
- No subcontractor may begin work until its COI and endorsements are on file with the property manager.
On larger projects involving several trades, a brief audit before mobilization, checking that every subcontractor's paperwork is complete, catches gaps before they become claims. Our guide to contractor-cleaner coordination walks through how property managers and general contractors typically divide this responsibility.
Why an insured nationwide cleaning partner simplifies procurement
A vendor that already carries the full coverage stack and can produce a COI with the right endorsements on short notice removes most of the back-and-forth that slows down vendor onboarding. That matters most on the jobs where documentation gets complicated fastest: post-construction cleanouts, tenant turn cleans across multiple properties, and disinfecting work in healthcare environments where completed operations and pollution coverage both come into play. A partner with established insurance processes can also move faster through the site visit and quoting stages, since the paperwork isn't being assembled from scratch for every new property.
— Sales
Sparklepro Commercial Cleaning: request a quote and certificate of insurance
We carry licensed and insured coverage and can provide a certificate of insurance with the additional insured and waiver of subrogation endorsements your contract requires. Our engagement process is built to keep procurement simple:
- Request a quote based on your property size, frequency, and scope of work.
- We schedule a site visit to confirm the details before anything is signed.
- Cleaning begins on the agreed schedule, and you approve the completed work.
- We send your COI and endorsements alongside the contract paperwork, with renewals tracked for ongoing service.
Whether you need a one-time post-construction cleanout or an ongoing janitorial contract, request a quote through our services page and we'll get the insurance documentation moving alongside your scope. Property managers overseeing a New Jersey portfolio can also see how our local New Jersey operations handle the same process.
FAQ
What is the standard minimum liability limit for cleaning vendors?
A common floor used in U.S. municipal and university contracts is $1,000,000 per occurrence and $2,000,000 aggregate for Commercial General Liability, with $1,000,000 for auto liability and $1,000,000 for employers' liability. Higher-risk work like post-construction cleaning or hazardous material handling often justifies adding an umbrella policy on top of these base limits.
What does "primary and non-contributory" mean on a certificate of insurance?
It means the vendor's policy pays first for a covered claim, ahead of any coverage the property owner carries, rather than the two policies splitting the cost. Procurement exhibits from public entities like the City of Sacramento commonly require this wording as a signed endorsement, not just a statement on the certificate.
How do I confirm a subcontractor is actually insured?
Require the prime contractor to collect and forward a certificate of insurance for every subcontractor before that subcontractor starts work, listing the same coverage types and limits required of the prime vendor. Confirm the owner is named as additional insured on the subcontractor's policy as well, particularly on larger multi-trade projects.
Do insurance requirements vary by state?
Workers' compensation is mandated at the state level and the specific statutory requirements differ, so a vendor's compliance in one state does not guarantee compliance in another. Other coverages like CGL and umbrella limits are typically set by your own contract rather than by state law, which is why written minimums in the agreement matter more than assumptions about what's "standard."
How often should I review a vendor's insurance requirements?
Review and renew certificates of insurance at least annually and again before any contract renewal, since policies can lapse, limits can change, and endorsements can expire independently of the underlying policy term. Setting a calendar reminder tied to each certificate's expiration date prevents a gap in coverage from going unnoticed.
Sources
- Cooperative Agreement insurance exhibit (City of Sacramento)
- Minimum insurance requirements for contracts (University of Pittsburgh)
- Certificate of insurance guidance (TxDOT)