Certificate of Insurance: What Texas Contractors Need to Know
A certificate of insurance is a one-page document proving a Texas contractor carries active coverage, required by nearly every general contractor and property owner before a subcontractor can access a job site. This guide covers the standard ACORD format, critical endorsements like additional insured and waiver of subrogation, GC coverage minimums, and how to manage certificates efficiently.
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This coverage is one piece of a complete Texas contractors insurance program that keeps your business protected on every jobsite.
Standard Format
- COIs use the ACORD 25 liability form accepted by every carrier and GC across Texas
- A COI is informational only and cannot modify, extend, or grant any policy coverage
Key Endorsements
- Additional insured (CG 20 10 + CG 20 37) is the most-requested endorsement on commercial jobs
- Waiver of subrogation costs $50-$200 per year and prevents cross-project lawsuits
GC Minimums
- Most GCs require $1M per occurrence and $2M aggregate general liability before executing a subcontract
- Projects over $10M often require $5M-$10M in umbrella or excess liability coverage
Turnaround Time
- Blanket endorsements let agents issue COIs same-day without per-project endorsement requests
- Without blanket endorsements, adding a new endorsement can take 1-3 business days
How quickly can a contractor get a certificate of insurance?
If blanket endorsements are already on the policy, most agents issue a COI same-day. Adding a new endorsement first may take one to three business days.
Does a COI change or extend the contractor's actual coverage?
No. A COI is informational only, confirming policies were active on the issuance date. It cannot grant, modify, or extend coverage beyond the underlying policies.
Can a GC require workers' comp even though Texas does not mandate it?
Yes. Texas law allows private employers to opt out, but GCs almost universally require workers' comp as a subcontract condition to avoid direct liability exposure.
What Is a Certificate of Insurance?
A COI is a standardized summary document issued by your insurance carrier or agent that lists active policies, coverage limits, policy numbers, and effective dates on a single page. The most common mistake I see is a contractor treating the COI as proof of coverage when it is actually just a snapshot that can be outdated within days of issue. The insurance industry uses the ACORD 25 form for liability coverages and ACORD 24 for property coverages, so every party in the construction chain reads the same format.
Key Facts About COIs
- A COI is not a policy document and cannot grant coverage, add protections, or modify any terms of the underlying policies
- It is a snapshot confirming that on the issuance date the listed policies were in force at the stated limits and with the noted endorsements
- Certificate holders sometimes assume a COI provides protections that only the actual insurance policy can deliver, which leads to disputes
- The ACORD forms are maintained by the Association for Cooperative Operations Research and Development to ensure consistency across carriers nationwide
How Do You Read a Certificate of Insurance?
Every COI contains the same six core sections regardless of carrier or agent, and understanding each section prevents misunderstandings that delay contract execution. The Description of Operations box is where most project-specific information lives, including endorsement references and job addresses.
| COI Section | What It Shows |
|---|---|
| Producer | The insurance agent or broker who issued the certificate |
| Insured | The contractor or business entity named on the policies |
| Insurers Affording Coverage | Each insurance company providing coverage, listed as Insurer A, B, C |
| Coverages | Policy type, policy number, effective and expiration dates, and limits |
| Description of Operations | Project details, additional insured language, and waiver of subrogation notes |
| Certificate Holder | The party requesting the COI, typically the GC or property owner |
Always verify COIs independently. A certificate can be outdated, inaccurate, or fraudulent. If you are a GC or property owner receiving COIs, contact the issuing agent or carrier directly to confirm active coverage, accurate limits, and that referenced endorsements actually exist on the policy. Fraudulent COIs are a documented problem in the Texas construction industry.
What Does Additional Insured Mean?
Businesses that get tripped up here are usually subs who list the GC as a certificate holder and assume that provides the same protection as additional insured status. Additional insured is an endorsement extending certain coverage rights under the subcontractor's general liability policy to a third party, typically the GC or property owner. This is the single most-requested endorsement in Texas commercial construction and directly determines who bears the insurance cost when a sub's work causes a loss.
Say a plumbing sub in Austin causes a water line break that damages the building and injures a bystander. The injured party sues both the sub and the GC. If the GC is named as an additional insured on the plumber's policy, the plumber's carrier defends and indemnifies both parties up to the policy limits. Without that endorsement, the GC relies on its own policy, increasing its loss history and future premiums.
Types of Additional Insured Endorsements
- CG 20 10 covers the additional insured for liability arising from ongoing operations while the named insured is actively performing work on site
- CG 20 37 covers the additional insured for liability arising from completed operations after the named insured finishes the scope of work
- CG 20 10 plus CG 20 37 combined is the gold standard required by most Texas GCs for commercial construction projects
- Blanket additional insured automatically extends coverage to any party required by written contract, eliminating per-project endorsement requests entirely
Primary and non-contributory matters. Many contracts require the sub's coverage to be primary and non-contributory for the additional insured. This means the sub's policy pays first and the additional insured's own policy does not contribute to the loss. Without this language, both policies may share the claim, which defeats the purpose of the additional insured requirement entirely.
How Does Waiver of Subrogation Work?
Subrogation is an insurer's right to recover claim costs from the party that caused the loss, and a waiver of subrogation gives up that right for a specified party. This endorsement prevents insurance carriers from filing cross-project lawsuits between contractors working on the same job.
Why Waivers Matter in Construction
- Without a waiver, a GC's property insurer can sue the subcontractor whose work caused covered damage, creating adversarial recovery actions between project partners
- With a waiver endorsement naming the GC, the recovery action is blocked and the loss stays where it falls without generating lawsuits between parties
- Most major Texas construction contracts including AIA, ConsensusDocs, and DBIA standard forms include mutual waiver of subrogation provisions
- The endorsement typically costs $50 to $200 per year on a general liability policy, a negligible expense relative to the compliance and relationship benefits
What Coverage Limits Do Texas GCs Require?
GC requirements vary by project size, but commercial construction in Texas follows a well-established baseline that most subcontractors will encounter on nearly every bid. Any gap between your coverage and these minimums delays contract execution and project mobilization.
| Coverage Type | Typical GC Minimum |
|---|---|
| General Liability | $1M per occurrence / $2M aggregate |
| Commercial Auto | $1M combined single limit |
| Workers' Compensation | Statutory limits |
| Employers' Liability | $500K / $500K / $500K |
| Umbrella / Excess | $1M to $5M depending on project size |
| Professional Liability (design-build) | $1M per claim / $1M aggregate |
Higher-Limit Projects
- Commercial buildings over $10 million often require $5M to $10M in umbrella coverage, which can be challenging for smaller subcontractors to obtain
- Public works and institutional projects may demand additional endorsements beyond the standard commercial baseline, including pollution liability and professional liability
- Smaller subs may need to purchase project-specific additional coverage to meet these
- Reviewing insurance requirements before bidding prevents the costly surprise of needing significantly more coverage after winning the contract ly more coverage after winning the contract
How Should Contractors Manage COIs?
For subcontractors working multiple projects with multiple GCs, certificate management becomes a significant administrative task that directly affects your ability to mobilize on schedule. The most effective approach is working with an insurance agent who specializes in construction and can issue certificates same-day.
COI Management Best Practices
- Maintain a tracking spreadsheet of every active project, certificate holder, endorsement requirements, and policy expiration dates for audit readiness
- Request blanket additional insured and blanket waiver of subrogation endorsements to eliminate per-project paperwork and speed up turnaround
- Update and redistribute all active certificates immediately when any underlying policy renews to prevent lapses in compliance
- Verify that your agent can issue certificates within 24 hours of any GC request, as delays cost productive working days on site
Blanket endorsements save time and money. Rather than requesting individual endorsements for each GC, blanket additional insured and blanket waiver of subrogation endorsements automatically extend protections to any party required by written contract. Most commercial GL policies offer blanket options at minimal or no additional cost, and they eliminate the single biggest bottleneck in the COI process.
What Happens When Coverage Lapses?
If your insurance policy lapses or is canceled, previously issued COIs become inaccurate but do not automatically update or notify certificate holders. I've seen this come up most often when a sub switches carriers mid-project and the new COI takes a week to issue, leaving the GC holding an expired certificate. The consequences of a discovered lapse are immediate and severe for any subcontractor working on active projects.
Consequences of a Coverage Gap
- Immediate removal from the job site until a current, valid certificate is provided to the GC or project owner
- Potential breach of subcontract triggering back-charge provisions, contract termination, and financial penalties
- Exclusion from future projects with that GC, as insurance compliance failures signal operational risk to project managers
- Direct personal liability exposure for any incidents that occur during the uncovered period, with no carrier to defend or indemnify
Preventing Coverage Gaps
- Set calendar reminders 60 and 30 days before every policy expiration to begin the renewal process with adequate lead time
- Begin underwriting and renewal at least 45 days before expiration to allow time for carrier review without risking a lapse
- Confirm that your agent sends automatic renewal notifications to all certificate holders listed on your policies
- Never let a policy lapse while active COIs are on file with GCs or project owners, as the reputational damage outlasts the gap
Do Residential Contractors Need COIs?
Homeowners rarely request formal certificates, but COIs are increasingly expected in the Texas residential market from builders, remodelers, and specialty subs. Having a current certificate ready demonstrates professionalism and protects business relationships regardless of project type.
When Residential Projects Require COIs
- Custom home builds where the owner or architect manages risk through formal insurance requirements mirroring commercial standards
- HOA-governed communities that require proof of coverage from every contractor before approving any work within the community
- Multi-family residential projects managed by property management companies that carry their own liability requirements
- Subcontract work under a licensed home builder who applies GC-level insurance requirements to every trade on the project
The Bottom Line
Certificates of insurance are the gatekeeping documents of Texas construction. Without a current, compliant COI you cannot win bids, sign subcontracts, or step onto a job site. Understanding the ACORD format, additional insured endorsements, waiver of subrogation requirements, and standard GC coverage minimums is as essential to running a contracting business as knowing how to estimate a job. Work with a construction-specialized insurance agent who issues certificates quickly, maintains blanket endorsements that satisfy most GC requirements, and manages renewals proactively so your paperwork never holds up your projects. The right agent turns a 24-hour COI request into a same-day response that keeps you mobilized while competitors wait on their paperwork. Next step: get a contractor insurance quote and make sure your coverage and certificates are ready for your next bid.
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Frequently Asked Questions
How much does it cost to add an additional insured to my policy?
With a blanket additional insured endorsement there is no per-project cost. The blanket covers all parties required by written contract. Without a blanket, individual additional insured requests typically cost $25 to $100 per endorsement. Blanket is nearly always the more cost-effective approach for subcontractors working on multiple projects.
What is the difference between a COI and an insurance policy?
A COI is a one-page summary confirming active coverage on the date of issuance. The actual insurance policy is a multi-page contract defining coverage terms, exclusions, conditions, and endorsements. A COI cannot modify, extend, or grant coverage that does not exist in the underlying policy.
Can a COI be fake or fraudulent?
Yes. Fraudulent COIs are a documented problem in Texas construction. GCs and property owners should verify certificates by contacting the issuing agent or carrier directly rather than relying solely on the document itself. Some carriers offer online verification portals for real-time confirmation of active policies.
What does primary and non-contributory mean on a COI?
It means the subcontractor's policy pays first for claims involving the additional insured, and the additional insured's own policy does not contribute. Without this endorsement, both policies might share the claim, reducing the protection the additional insured requirement was designed to provide.
How long is a certificate of insurance valid?
A COI is valid only for the policy period shown on the certificate, typically one year. It reflects coverage status on the issuance date only. If a policy is canceled or lapses before the listed expiration date, the certificate becomes inaccurate even though it remains in the certificate holder's files.
What is the 30-day notice of cancellation requirement?
Many GC contracts require the subcontractor's insurer to provide 30 days written notice before canceling a policy. This gives the GC time to address the coverage gap before it affects the project. The notice requirement must be endorsed onto the policy to be enforceable and reflected on the COI.
Do I need an umbrella policy as a subcontractor?
Most GCs on commercial projects require umbrella or excess liability coverage ranging from $1M to $5M depending on project size. Even if not contractually required, an umbrella provides critical protection against catastrophic claims that exceed primary policy limits at a relatively modest annual premium.
What is the ACORD 25 form?
ACORD 25 is the standardized certificate of liability insurance form used throughout the insurance industry. It provides a consistent format for reporting general liability, auto liability, umbrella, and workers' compensation coverage on a single document. Nearly every COI request in Texas commercial construction uses this form.
Can I issue my own certificate of insurance?
No. COIs must be issued by your insurance agent, broker, or carrier. The certificate includes the producer's information and authorized representative signature. Self-issued certificates are not valid and would be considered fraudulent by any GC or project owner.
What endorsements should every Texas subcontractor carry?
At minimum, carry blanket additional insured for both ongoing and completed operations, blanket waiver of subrogation, and primary and non-contributory endorsement on your general liability policy. These three endorsements satisfy the requirements of most GC subcontracts in Texas and eliminate per-project endorsement delays.
Sources & Resources
EJ Nadolny is the founder and principal agent of Canopy Insurance Texas, an independent insurance agency based in San Antonio. With deep expertise in home, auto, commercial, and specialty insurance lines, EJ leads a team that represents 18+ carriers across Texas. His approach focuses on finding the right coverage at the right price by shopping the market on behalf of every client — not pushing a single carrier’s products.
