Excavation & Sitework subcontractor insurance requirements
What a general contractor should require from a excavation & sitework subcontractor before they set foot on site, and the coverage gap that most often turns a excavation & sitework job into the GC's claim.
Why excavation & sitework insurance matters
Underground utility strikes, trench collapse, and soil/subsurface issues make this one of the highest-severity, most-litigated trades.
What to require from a excavation & sitework sub
General liability with high limits, workers' comp, commercial auto and equipment, umbrella, and, critically, contractors pollution liability for spills and contaminated soil.
Often requires a contractor license and utility/underground certifications. Confirm both and locate-ticket compliance.
Contractors Pollution Liability (CPL): standard GL excludes pollution, and a fuel spill or disturbed contaminant is a classic excavation claim.
Relying on GL alone with no pollution coverage, and no coverage for underground-utility damage (often excluded).
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.
Know when a excavation & sitework sub's COI expires
TradeGuard tracks your subs' certificates, tells you when the additional insured named isn't you, and warns you before a certificate expires. It doesn't verify endorsement forms.
No credit card · See how COI tracking works
Excavation & Sitework insurance FAQ
What insurance should a excavation & sitework subcontractor carry?+
At minimum, General liability with high limits, workers' comp, commercial auto and equipment, umbrella, and, critically, contractors pollution liability for spills and contaminated soil.
Do excavation & sitework subcontractors need a license?+
Often requires a contractor license and utility/underground certifications. Confirm both and locate-ticket compliance.
What's the most common COI gap on excavation & sitework work?+
Relying on GL alone with no pollution coverage, and no coverage for underground-utility damage (often excluded).
Other trades
Requirements also vary by state; see insurance requirements by state.