Subcontract
A contract between a primary contractor and a third party (subcontractor) to perform part of the work the primary contractor is obligated to do under a main contract.
While straightforward in theory, many businesses fail to actively track obligations tied to this concept - often resulting in missed deadlines, unintended renewals, penalties, or loss of contractual rights.
US Law · For business owners and foundersWhat is a Subcontract?
A subcontract is an agreement between a prime (general) contractor and a third party (subcontractor) under which the subcontractor agrees to perform a defined portion of the prime contractor's obligations under the main contract. The subcontractor is not a party to the main (prime) contract - there is no privity between the subcontractor and the project owner.
The prime contractor remains fully liable to the project owner for all work, whether performed directly or by subcontractors. If a subcontractor performs defectively, the owner looks to the prime contractor for remedy - not the subcontractor directly. The prime must then pursue its own subcontract remedies against the subcontractor.
To protect itself from subcontractor failures, the prime contractor typically includes "flow-down" clauses in subcontracts - provisions that pass down key obligations from the prime contract (insurance requirements, change order procedures, dispute resolution, delay penalties) to the subcontractor. This aligns the subcontract terms with the prime contract and prevents gaps in the subcontractor's obligations.
In practice, many teams rely on a contract expiry tracking system to stay on top of dates and obligations tied to clauses like this.
Key Elements
Scope of Work
A precise description of what portion of the project the subcontractor will perform, including deliverables, milestones, and acceptance criteria.Flow-Down Provisions
Terms from the prime contract that the subcontractor must comply with, including schedule, change procedures, insurance, and indemnification.Payment Terms
When and how the subcontractor is paid - often contingent on the prime contractor receiving payment from the owner ("pay-when-paid" or "pay-if-paid" clauses).Indemnification
The subcontractor typically indemnifies the prime contractor for losses arising from the subcontractor's own negligence or breach.Real-World Example
A general contractor (GC) is hired to build a hospital. The GC subcontracts the HVAC installation to a mechanical contractor. The HVAC subcontractor installs the systems defectively, causing a $300,000 repair bill.
The hospital owner sues the GC - not the HVAC subcontractor - because the GC is its contractual counterparty. The GC pays the owner and then sues the HVAC subcontractor under the subcontract's indemnification clause. The lack of privity between the subcontractor and the hospital owner means the subcontractor faces liability only through the GC's subcontract claim.
This is why many businesses adopt automated deadline tracking to ensure no critical dates are missed before they pass.
Sample Clause Language
Flow-Down and Subcontractor Responsibility ClauseWatch Out For
Pay-if-paid clauses shift non-payment risk to subcontractors
A "pay-if-paid" clause makes the prime contractor's payment to the subcontractor expressly conditioned on the prime receiving payment from the owner. This is enforceable in many states but contested in others. Subcontractors should push for "pay-when-paid" (payment timing only, not a condition).Subcontractors may file mechanic's liens against the owner
Even without privity, an unpaid subcontractor can often file a mechanic's lien on the project property under applicable state lien laws. Project owners should require lien waivers from subcontractors as conditions of payment.Don't let subcontract deadlines catch you off guard
Key dates tied to subcontracts - renewal windows, expiry cutoffs, notice periods - can easily slip through the cracks when tracked manually. Missing them triggers automatic extensions, penalties, or lost rights. ExpiryEdge tracks every critical deadline and sends automated reminders before they're due - so nothing slips.
Instead of relying on spreadsheets or manual follow-ups, a centralized renewal reminder system ensures every deadline is visible, tracked, and actioned automatically.
How to Use This in Your Favor
Audit subcontractor insurance before work begins
Verify that subcontractors carry required insurance (general liability, workers' comp, professional liability) and that you are named as an additional insured. An uninsured subcontractor incident becomes your problem.Include step-in rights for subcontractor default
Add a right to step in and take over a subcontractor's work directly (or hire a replacement) if the subcontractor materially defaults. This keeps the prime project on track while you pursue subcontract remedies.Frequently Asked Questions
Does the project owner have any rights against the subcontractor?
Generally, no - there is no privity. However, the owner may have tort claims against a subcontractor for negligence, or may be a third-party beneficiary of the subcontract if the subcontract expressly confers such rights.
Can a subcontractor sub-subcontract their work?
Only if the subcontract permits it. Many subcontracts require the prime's written consent for further sub-subcontracting. Unauthorized sub-subcontracting can be a breach of the subcontract.