Know the Gaps Before a Claim Finds Them
Exclusions in Contractor General Liability Policies
The ten exclusions that catch contractors off guard — from employee injuries and auto to pollution, mold, and faulty workmanship — and the endorsements, riders, and companion policies that fill every gap. Read this before your next renewal.
- ✓✓Plain-English breakdown of every major exclusion
- ✓✓How to close the gap with companion policies
- ✓✓Trade-specific exclusions you might not know about
- ✓✓Endorsements that quietly carve back coverage
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Why Contractors Get Burned By Exclusions They Did Not Know Existed
Every general liability policy on the market is built the same way: it grants broad coverage at the front, then takes coverage back through pages of exclusions. Those exclusions are where claims live or die. When contractors talk about general liability policy exclusions for contractors, they usually mean the half-dozen big ones — but a standard ISO CGL form has dozens more, and most carriers add their own restrictive endorsements that further whittle the grant of coverage. The cheaper the policy, the more aggressive the carve-outs. Learn more about general liability insurance for contractors or scroll down for the details on this question.
If you have ever had a claim denied, the denial letter quoted an exclusion. If you have ever had a covered claim paid in part, an exclusion limited the payment. Understanding the top ten contractor exclusions is the single most useful 30 minutes you can spend on your insurance program — because the goal is not just to have a policy, it is to have a policy that responds when you need it.
The good news: every meaningful exclusion has a companion policy, an endorsement, or a coverage extension that closes the gap. The challenge is knowing which gaps apply to your trade, which carriers offer the buy-back, and how to bundle them without paying for redundancy. That is exactly the conversation we have on every quote — and the reason an independent agency that quotes dozens of carriers will almost always build a tighter program than a one-carrier captive agent.
Read Your Policy Once a Year
The hour you spend reading endorsement names on your renewal declaration is the cheapest insurance audit you will ever do. Endorsements like CG 21 39 (Contractual Liability Limitation), CG 22 94 (Exclusion of Damage to Your Work), and CG 21 49 (Total Pollution Exclusion) can quietly remove coverage you assumed you had. Pull yours out before reading the rest of this page.
Two Categories of Exclusions
Exclusions come in two flavors. Structural exclusions are part of the ISO base form (or proprietary carrier form) and apply unless specifically endorsed away. Carrier-added exclusions are extra endorsements stapled to the back that further restrict coverage — usually for high-hazard work or contractors with claim history. The cheapest policy on the market is often cheap because of one or two killer carrier-added endorsements. That is what we hunt for during every quote review.
The Top 10 Contractor GL Exclusions
Each exclusion below shows what it removes, why it exists, and the cleanest way to fill the gap.
1. Employee Injuries (Employer’s Liability Exclusion)
GL does not cover injuries to your own employees. Period. That is what workers’ compensation and employer’s liability are for. The exclusion exists because the workers’ comp system was built as the exclusive remedy for on-the-job injuries. How to fill the gap: a workers’ comp policy with adequate employer’s liability sub-limits ($500K/$500K/$500K minimum, $1M/$1M/$1M for hard-hat trades).
2. Auto Exposure (Aircraft, Auto, Watercraft Exclusion)
Anything to do with driving, loading, or unloading a vehicle is excluded from GL. If your tech rear-ends a Tesla in the company truck, your auto policy responds, not GL. The exclusion also extends to “hired and non-owned” autos — that rented box truck for the move-in week is not on your GL. How to fill the gap: a commercial auto policy with hired/non-owned auto coverage.
3. Professional Services Exclusion
GL pays for physical injury and property damage — not financial losses caused by bad advice, design errors, or mis-specifications. If you draw the plans, calc the loads, or stamp the specs, you have a professional services exposure that GL ignores. How to fill the gap: a professional liability (E&O) policy or a contractor’s professional + protective indemnity (CPPI) bundle.
4. Intentional Acts and Expected Damage
No insurance pays for damage you intended or could reasonably foresee. The classic trap is “expected” damage — a contractor knew the slab was likely to crack and proceeded anyway. Carriers will use this exclusion to deny claims they argue were not truly accidental. How to fill the gap: contractual documentation that demonstrates good-faith decision-making, plus a thoughtful umbrella that adds defense limits when this exclusion is invoked.
5. Pollution Exclusion
“Pollution” is defined extremely broadly — smoke, fumes, dust, vapors, chemicals, and even silica dust can fall under this exclusion. Painters, refinishers, demo crews, and HVAC contractors hit this one constantly. How to fill the gap: a contractor’s pollution liability (CPL) policy or a pollution-buyback endorsement on your GL. Cost: $500–$2,500/year for low-hazard, more for environmental and demo.
6. Mold, Fungi, and Bacteria
Most carriers add a mold exclusion as a separate endorsement after the early-2000s Texas claims wave. If water sits long enough to grow mold, your GL adjuster will reach for this exclusion every time. How to fill the gap: negotiate a mold buy-back with a sub-limit (commonly $25K to $100K) or carry a CPL policy that includes mold coverage. Roofers, restoration contractors, and water-mitigation companies should never accept a flat mold exclusion.
7. Faulty Workmanship to Your Own Work
GL excludes the cost of repairing your own bad workmanship — though it usually pays for the resulting damage to other property. If you mis-solder a joint that floods the kitchen, GL pays for the kitchen, you pay to re-do the joint. The exclusion is one of the most litigated parts of the CGL form, and carve-back endorsements like the “subcontracted work exception” can restore coverage when subs cause the loss. How to fill the gap: ensure your form has the “your work” exception for subcontracted work intact (a common carrier endorsement removes it).
8. Damage to Property in Your Care, Custody, or Control
If you are physically working on a specific portion of a building, that portion is in your “care, custody, or control” (CCC) and damage to it is excluded. This trips up contractors who think GL will pay for a section of roof they actively damaged. How to fill the gap: installation floater, builder’s risk, or an inland marine policy that names the CCC property as scheduled equipment, plus a tight contract assigning responsibility.
9. Contractual Liability Beyond Your Operations
GL covers liability you assume under “insured contracts” — but only as defined in the policy. Many contracts — especially aggressive subcontracts — obligate you to indemnify the GC for losses your insurance was never designed to cover. How to fill the gap: contractual review by your agent before signing, plus broader contractual liability endorsements available from carriers like Cincinnati, Travelers, and Hartford.
10. Specific Trade Carve-Outs (Roofing Heights, Demolition, EIFS, Subsidence)
Roofing carriers commonly exclude work above 3 stories. Demo carriers exclude blasting, undermining, and subsidence. EIFS contractors face universal EIFS exclusions on standard forms. Each one is a deal-breaker if it does not match your actual operations. How to fill the gap: a specialty carrier built for your trade, not a generalist. This is where independent agencies earn their keep.
Exclusion-to-Solution Quick Reference
| Exclusion | Closes the Gap | Typical Cost |
|---|---|---|
| Employee injuries | Workers’ comp + EL | $0.50–$30 per $100 payroll |
| Auto exposure | Commercial auto + HNOA | $1,200–$3,500/vehicle |
| Professional services | Contractor E&O | $800–$4,500/yr |
| Pollution | CPL policy | $500–$2,500/yr |
| Mold | Mold buy-back / CPL | $200–$1,500/yr |
| Faulty workmanship (own work) | Subcontracted-work exception | Form negotiation, no premium |
| CCC property | Installation floater / builder’s risk | 0.3–0.6% of project cost |
| Contractual liability | Broader contractual endorsement | $0–$500/yr |
| Roofing height limit | Specialty roofing carrier | 10–25% premium uplift |
| EIFS | EIFS-friendly specialty market | Specialty pricing |
Why Trade Safe Insurance
Closing exclusion gaps is an art — one that requires reading dozens of carrier forms side by side. That is what our office does every single day, exclusively for contractors.
20+
Years exclusively in contractor insurance
Independent
Agency that shops dozens of carriers
Same-Day
COIs and binders for active jobs
Hard-to-Place
Roofing, demo, EIFS, prior losses welcome
Frequently Asked Questions
Can I buy back any exclusion?
Most of them, yes. Pollution, mold, professional services, contractual, and even some workmanship endorsements can be negotiated back or replaced with companion policies. The exception is intentional/criminal conduct — no carrier will insure that.
Will my agent tell me about restrictive endorsements?
A good one will. Many will not. Always ask for a complete schedule of forms and endorsements at quote time and again at renewal — not just the declarations page. We send a “what changed” summary at every renewal so nothing sneaks in.
Is the cheapest quote usually the most exclusion-heavy?
In contractor insurance, almost always yes. The savings come from carve-outs — total pollution, mold, EIFS, blocked subcontracted-work exception. We compare quotes line by line so you see exactly what coverage you would give up to save the dollars.
Does adding an umbrella policy fix exclusions?
No. An umbrella sits on top of underlying coverage; it does not grant new coverage. If your underlying GL excludes mold, your umbrella will too. The fix is to put coverage back on the primary policy or add the right companion policy.
Are exclusions different for new contractors?
Sometimes. New contractors with no loss history can often get broader forms at lower price than tenured contractors who have had claims. We use new-venture programs from carriers like Hiscox, Berkley, and Travelers that price aggressively for first-year businesses.
Will exclusions show up on my COI?
Not the line-item exclusions, no. A COI lists named insureds, additional insureds, limits, and high-level coverage parts. The detailed exclusions live inside the policy. That is why GCs sometimes require a copy of the policy and not just the certificate.
What is the most expensive exclusion to ignore?
For low-hazard trades, pollution. For higher-hazard trades, faulty workmanship combined with mold. A single uncovered water-damage-into-mold loss can run six figures and is the most common claim denial we untangle.
How do I audit my own policy for hidden exclusions?
Email us the declarations page and schedule of forms. We will run a free exclusion audit, flag every restrictive endorsement, and quote competing markets so you can see what your policy is missing — with no obligation to switch.
Get a Free Exclusion Audit on Your Current Policy
Send us your declarations page. We will tell you exactly which exclusions are hurting you — and quote the markets that close every gap.