Certificate of Insurance (COI) for Contractors
Need a COI today (fast lane)
If you are an existing client, use the COI request form and include the requirement language from the GC or owner if you have it.
Request a COI
If you are new to , COIs require active coverage first. Start here:
What a COI means in plain English
A COI is a snapshot of coverage that helps a GC, owner, or vendor portal confirm you carry the insurance they require.
A COI usually shows:
- Your business name (the insured)
- Policy types (GL, Workers’ Comp, Auto, Umbrella, etc.)
- Policy effective and expiration dates
- Key limits (for example, $1M per occurrence on GL)
- Certificate holder information (who is requesting proof)
- Sometimes notes in the “Description of Operations” section
What a COI does not do (this matters for compliance)
A COI does not rewrite the policy and does not create coverage that is not already in force.
A COI typically does not:
- Add an Additional Insured by itself
- Change limits, exclusions, or policy terms
- Guarantee that a specific claim will be covered
- Replace an endorsement when the contract requires one
Why GCs, owners, and vendor portals require COIs
COIs are used to manage risk transfer and to confirm you meet the minimum insurance requirements before you step on site.
Common reasons you are asked for a COI:
- You are onboarding to a GC or property manager vendor system
- A bid packet requires proof of insurance before award
- A contract requires proof before mobilization
- The GC wants to confirm your subs are compliant (common for general contractors)
Trades that run into COI requirements constantly:
What affects pricing (underwriting factors)
E&O pricing is driven by what professional services you perform, contract language, project types, revenue, claims history, and how responsibilities are allocated.
Common pricing drivers:
- Type of professional services (design-build vs consulting vs design-assist vs documentation only)
- Contract language (indemnity, standard of care, limitation of liability, reliance clauses)
- Project types and size (complexity increases scrutiny)
- Revenue and scope mix (percentage of work involving professional services)
- Prior claims or disputes (allegations, not just paid claims)
- Quality controls (review process, submittal controls, versioning, sign-off process)
- Retroactive date / prior acts (if applicable; varies by carrier and form)
Where COI requirements show up (COI vs endorsement) and what to verify
Step 1: Identify what the other party is actually asking for
Most requests fall into two buckets:
- Proof of active coverage and limits (COI usually works)
- Policy term changes or special status (often requires endorsements)
Step 2: Verify the basics on the COI (quick checklist)
- Correct legal name of the insured (your entity name matches contracts and vendor portals)
- Correct certificate holder (legal name and address, exactly as provided)
- Policy dates (effective and expiration)
- Limits match the requirement (GL, Auto, WC, Umbrella if required)
- Carrier and NAIC details (many portals validate these)
- Job name and jobsite address if the GC/owner requires it in the description area
Step 3: Confirm endorsements when required (the big three)
Many contracts request these. The safest approach is to confirm what is required and whether an endorsement is needed.
- Additional Insured (AI)
In brief: The GC/owner wants protected status under your liability policy for certain claims tied to your work.
Learn more - Primary and Noncontributory (PNC)
In brief: They want your policy to respond first in certain situations, subject to policy wording and endorsements.
Learn more - Waiver of Subrogation (WOS)
In brief: They want the insurer to waive certain recovery rights, when allowed and endorsed.
Learn more
Important: A checkbox or note on a COI may not be enough if the contract requires an endorsement. Requirements vary by contract, project, and carrier.
Common mistakes that delay approval (and how to avoid them)
- Wrong certificate holder name or address
Fix: Copy/paste the certificate holder exactly as provided. - Insured name does not match the contract or vendor portal
Fix: Use the legal entity name tied to the policy and your contract paperwork. - Missing jobsite address or project name
Fix: If the GC requests it, include it. Many portals reject COIs without it. - Limits do not match the requirement
Fix: Send the requirement line items with your request so we can match them correctly. - Assuming endorsements are “automatic”
Fix: If AI, PNC, or WOS are required, ask for them explicitly and provide the wording. Do not rely on assumptions. - Last-minute requests with no requirement language
Fix: Attach the insurance requirement page or paste the contract clause.
Subcontractor compliance gaps (GCs)
Fix: If you are collecting COIs from subs, build a consistent checklist and verify endorsements when the GC requires them.
See
How to request a COI fast (copy/paste checklist)
Speed comes from complete inputs. If we have the certificate holder details, job info, limits, and endorsement needs, we can move quickly.
COI request checklist
Provide:
- Certificate holder: legal name and mailing address
- Project/job name (if applicable)
- Jobsite address (if applicable)
- Required limits (GL, Auto, WC, Umbrella, etc.)
- Endorsements required: Additional Insured, Primary and Noncontributory, Waiver of Subrogation (and any special wording)
- Send-to emails (who needs it, plus any CC list)
- Deadline (bid due date or onboarding deadline)
Existing clients: submit here →
New to us: start coverage first →
Policies that most often show up on contractor COIs
Most COIs for contractors involve general liability, workers’ comp, and commercial auto, and larger projects may add umbrella or project coverage.
Common policies:
- General Liability →
- Workers’ Compensation →
- Commercial Auto →
- Umbrella / Excess →
- Tools and Equipment (Inland Marine) →
- Builder’s Risk (project property, when required) →
How we help you meet requirements fast
We help contractors get from “we need a COI” to “approved” by translating requirements into the exact documents and wording needed.
What you can expect:
- Clear routing: COI requests for existing clients, quote flow for new business
- Compliance-first handling: we focus on the exact requirements and wording the GC or owner wants
- Trade-aware guidance: roofing, GC, and plumbing workflows are different, and your COI requests reflect that reality
- Transparent guardrails: no fake office claims, we serve California and Texas metros and surrounding areas
Certificate of Insurance (COI) for contractors
What is a COI for contractors?
Does a COI change my policy coverage?
No. A COI does not rewrite the policy and does not create coverage that is not already in force.
