Structural trade

Steel & Ironwork subcontractor insurance requirements

What a general contractor should require from a steel & ironwork subcontractor before they set foot on site, and the coverage gap that most often turns a steel & ironwork job into the GC's claim.

Risk tier
High
State license
Usually not
OSHA on site
Yes: 10/30

Why steel & ironwork insurance matters

Structural steel work is high-elevation, heavy-rigging, and structurally load-bearing: high frequency and severity.

What to require from a steel & ironwork sub

General liability, workers' comp at the correct high-risk class, umbrella, and completed operations for structural connection defects.

Licensing

Not always a separate license, but rigging/crane operations carry their own certifications; require them.

The endorsement that matters

Umbrella that follows form + completed-operations additional insured; confirm rigging/crane operations aren't excluded.

The gap that bites GCs on steel & ironwork work

A height or structural exclusion, or crane operations run under a policy that excludes them.

Most of these gaps come down to one thing: additional insured status and the right endorsement.

General information, not legal or insurance advice; confirm requirements with your broker and the terms of your subcontract.

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Steel & Ironwork insurance FAQ

What insurance should a steel & ironwork subcontractor carry?+

At minimum, General liability, workers' comp at the correct high-risk class, umbrella, and completed operations for structural connection defects.

Do steel & ironwork subcontractors need a license?+

Not always a separate license, but rigging/crane operations carry their own certifications; require them. Always confirm the requirement in the state and locality where the work happens.

What's the most common COI gap on steel & ironwork work?+

A height or structural exclusion, or crane operations run under a policy that excludes them.

Other trades

Requirements also vary by state; see insurance requirements by state.