Commercial Umbrella Insurance

How Commercial Umbrella Insurance Works for Contractors

How Commercial Umbrella Insurance Works for Contractors — everything contractors need to know about umbrella coverage.

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The Mechanics of a Policy That Activates When You Need It Most

A commercial umbrella policy sits above your GL, commercial auto, and employers liability policies — extending your total liability protection beyond what any single policy can provide. For contractors facing large projects, high-value claims, and contract requirements, umbrella coverage is essential.

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The Stacking Structure

Commercial umbrella works by stacking above your primary policies. Your GL, auto, and employers liability policies are the ‘underlying’ or ‘scheduled’ policies. When a covered claim exceeds an underlying limit, the umbrella activates and pays the excess — up to the umbrella limit.

A Real-World Example

A subcontractor on your job site causes a serious fall injury to a third party. Total damages are $1.8M. Your GL pays the first $1M (your GL limit). Your $2M umbrella pays the remaining $800,000. Total out-of-pocket: $0. Without umbrella: $800,000 personal exposure.

Maintaining Required Underlying Limits

Umbrella policies require you to maintain specific minimum limits on underlying policies. If you reduce your GL below the umbrella’s required minimum (typically $1M CSL), a gap forms between your GL and umbrella — and you become personally responsible for claims in that gap. Never reduce underlying limits without reviewing umbrella requirements.

How Claims Are Processed

When a claim is filed, your primary insurer handles it first. If the claim is likely to exhaust primary limits, notify your umbrella carrier as well. Both insurers will coordinate — the primary pays its limit, then the umbrella takes over for the excess. Most umbrella carriers want early notice on potentially large claims.

Occurrence vs. Claims-Made

Commercial umbrella for contractors is typically written on an occurrence basis — consistent with GL. This means umbrella coverage applies to incidents that happen during the policy period, regardless of when the claim is filed. This aligns with how contractor GL is structured.

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Frequently Asked Questions

Do I need to file a separate umbrella claim?

When a claim may exceed primary limits, notify your umbrella carrier early. Some policies require concurrent notice to the umbrella carrier. Your agent handles the coordination, but early notification protects your coverage.

What happens if I cancel my underlying GL and keep umbrella?

Umbrella requires active underlying policies at specified minimum limits. If your GL is cancelled, your umbrella has no policy to sit above — it essentially becomes non-functional. Maintain all underlying policies continuously.

Does umbrella have its own deductible?

Most commercial umbrella policies have no separate deductible for losses covered by underlying policies. The underlying policy’s deductible applies, and the umbrella activates after the full underlying limit is paid. Some umbrellas have a self-insured retention (SIR) for claims not covered by any underlying policy.

How does umbrella handle defense costs?

It depends on the policy. Some umbrellas include defense costs within the limit; others provide defense costs in addition to the limit. For large, complex litigation, defense costs can be significant — understand your policy’s defense cost structure.

Can umbrella cover a claim that underlying GL denies?

If an underlying policy denies a claim and the umbrella provides broader coverage, the umbrella may provide drop-down coverage — effectively insuring the claim directly at the umbrella level with a self-insured retention. This is a key advantage of true umbrella over excess liability.