What General Contractors Should Require From Every Subcontractor

Subcontractor default is not just a schedule problem. When a sub fails to perform — or shows up without the coverage your contract assumed — the exposure often lands on the general contractor’s program, project cash flow, and relationship with the owner.

Industry risk guidance on subcontractor default stresses the same point: prequalification and monitoring matter before the first day on site, not after a claim or stop-work notice. That includes insurance documentation, not only price and schedule.

Minimum insurance requirements to put in writing

Every commercial sub agreement should spell out, in plain language:

• General liability limits that match the work severity (not a light package sold on price)
• Workers’ compensation where required — with statutory limits and employer’s liability
• Commercial auto for any vehicles used on the job, including hired/non-owned where applicable
• Additional insured / primary & noncontributory / waiver of subrogation wording that matches your GC contract and owner requirements
• Umbrella / excess when project or owner specs demand higher towers

Wrong additional insured wording or a missing waiver still gets kicked back when a COI is reviewed. Build the requirement into the subcontract — then verify it on every certificate.

Prequalification is more than collecting PDFs

Before you mobilize a sub, confirm:

1. Active policies — carrier, policy numbers, effective/expiration dates
2. Class codes and operations that match the scope they are actually doing
3. Experience and financial capacity for the size of package you are handing them
4. Safety / EMR and loss history when the exposure warrants it
5. Ongoing monitoring — renewals, mid-term cancellations, and mid-project scope changes

Subcontractor default risk rises when GCs treat COIs as a one-time upload instead of a living control.

Contract provisions that reduce default exposure

Pair insurance requirements with operational controls: clear payment/retainage terms, notice requirements, right to supplement or replace a failing sub, and documentation of change orders. Insurance alone does not fix a bad prequalification process — but weak insurance requirements almost always make a default more expensive.

How this connects to your own program

Markets underwriting middle-market contractors look at how you control subs. Clean COI processes, consistent additional insured practices, and documented prequalification support better placement on GL, excess, and related lines — including trade programs for plumbing, utility/pump, electrical, and HVAC work.

Next step

AOR Insurance works with middle-market construction and trade contractors who need GL, Auto, WC, umbrella, and trade-specific placement that keeps jobs moving.

Request a free comprehensive risk profile on our Construction Insurance page, or call (866) 685-0661.

Trade pages: plumbing · water/sewer/utility · electrical · HVAC contractor insurance.

Related reading: 9 Construction Insurance Risks Every Contractor Should Know · Construction Insurance: Complete Guide.