Last reviewed: June 7, 2026 by Policyhold Compliance Team, Construction compliance operations
Plumbing subcontractor insurance requirements for general contractors
Plumbing subcontractors present high-severity water damage exposure when lines fail in finished spaces. GCs often require $2M/$4M GL on multifamily, hospitality, and healthcare projects even when contract value is moderate.
A single pressurized line failure can exceed $1M in property damage on commercial interiors.
Typical commercial limits (Plumbing, $1M-$5M projects)
Starting points aligned with common 2026 GC program practice. Verify against your subcontract and owner insurance exhibit.
| Coverage | Typical requirement |
|---|---|
| GL per occurrence | $2M |
| Umbrella | $5M |
| General liability: general aggregate | $4M |
| General liability: products / completed ops aggregate | $4M |
| Workers compensation | Statutory limits per state law |
| Commercial auto liability | $1M combined single limit (CSL) |
Related: Subcontractor insurance requirements checklist and additional insured endorsement guide.
FAQ
- What GL limits apply to plumbing subcontractors?
- Commercial plumbing subs typically need $2M per occurrence and $4M aggregate GL, $1M auto CSL, statutory WC, and umbrella coverage on owner-driven or institutional projects.