Construction runs on subcontracting: the general contractor holds the deal with the owner, and electricians, plumbers, framers, and finishers each take a slice of the work. The subcontractor agreement is where that slice gets defined, and where the money risks get allocated: what exactly is in the scope, when payment flows, who insures what, and how lien rights are waived as the money moves.
This template covers the terms disputes actually turn on: a written scope with change orders, a payment schedule with retainage, insurance certificates, lien waivers, and a workmanship warranty, plus the independent contractor language both parties need.
The scope of work is the whole contract
Nearly every subcontract dispute reduces to one question: was that work in the scope or not? The answer must live in the document, not in a phone call. A usable scope references the plans and specs by date, states quantities where they matter, allocates materials explicitly, and names the exclusions ("fixtures by others" prevents a thousand-dollar argument). Then the change order discipline does the rest: extra work happens only after a signed change order stating the price, because a sub who performs extras on a promise is negotiating from weakness when the invoice lands, and a GC who tolerates unpriced extras loses control of the budget.
- Reference documents by date: "per plans dated July 10" pins the scope to a specific version; plans change, and undated references drift.
- Write the exclusions: what the sub does not do (patching, painting, disposal of specific materials) is as load-bearing as what they do.
- No signed change order, no extra work: the single most protective habit on both sides of a subcontract.
Payment, retainage, and lien waivers
Subcontract payment mechanics are standardized for good reason. Progress payments keep the sub liquid across a long job; retainage (typically 5% to 10%) gives the GC leverage that survives until the punch list is done; and lien waivers move in lockstep with the money. The waiver choreography matters: a conditional waiver accompanies each payment request (effective only when the payment clears), and an unconditional final waiver trades against the final check. Subs should never sign unconditional waivers for money not yet received; GCs should never release final payment without the final waiver, because the owner will demand proof the project is lien-free. Many states add prompt payment statutes with interest penalties for slow payment on top of the contract terms.
| Waiver | When it is signed | Effect |
|---|---|---|
| Conditional, progress | With each payment application | Waives lien rights for that amount once payment clears |
| Unconditional, progress | After a progress payment clears | Waives lien rights for the amount paid, unconditionally |
| Conditional, final | With the final payment request | Waives all remaining rights once final payment clears |
| Unconditional, final | Against the final check | Extinguishes all lien rights on the project |
Insurance, workers' comp, and contractor status
The insurance paragraph is where GCs get hurt silently. If a sub without workers' compensation coverage has a worker injured on site, the claim rolls up to the GC's policy in most states, and the GC's annual premium audit will charge for every uninsured sub as if their payroll were the GC's own. The fix is procedural: collect certificates of insurance before work starts, require general liability with the GC named as additional insured, and require workers' comp from any sub with employees. The independent contractor language matters too: subs who are directed like employees (set hours, GC's tools, no other clients) can be reclassified, with tax and benefit consequences, so the agreement should reflect and the parties should practice genuine independence.
Unlicensed subs can poison the project
In licensed trades, hiring an unlicensed sub can expose the GC to discipline, void the sub's right to payment in some states, and complicate permits and inspections. Verify the license number against the state board before signing, not after the walls are closed.
Construction law is state law
Lien procedures, waiver forms, retainage caps, prompt payment rules, and licensing requirements all vary by state, and some states mandate specific statutory waiver language. Verify the project state's rules. This template is a self-help document, not legal advice.
Frequently asked questions
What is the difference between a subcontractor and an independent contractor agreement?
A subcontractor agreement is an independent contractor agreement specialized for construction: it adds the pieces construction requires, such as scope tied to plans, progress payments and retainage, lien waivers, insurance certificates, and coordination with other trades. Every sub is an independent contractor, but a generic contractor agreement misses the construction mechanics.
Does the subcontractor have a contract with the property owner?
No. The sub's contract is with the general contractor, and the GC's contract is with the owner. That is why lien rights matter to subs: the mechanics lien is the sub's remedy against the property itself when payment fails somewhere up the chain, subject to strict state notice deadlines.
What is retainage and is it negotiable?
Retainage is a percentage (commonly 5% to 10%) withheld from each payment and released at final acceptance, protecting the GC against punch-list walk-offs. It is negotiable, and some states cap it on public and even private jobs. This form offers 0%, 5%, or 10% with release 30 days after final acceptance.
Who pays for materials under a subcontract?
Whatever the contract says, which is why this form makes it explicit: sub supplies (priced in), GC supplies, or a split defined in the scope. Material allocation disputes are among the most common subcontract arguments, and they are entirely preventable with one clear sentence.
Can the GC terminate the subcontract mid-project?
Under this agreement, yes, for uncured material breach on 7 days' written notice, paying for conforming work performed. The sub gets the mirror right: stop work and terminate if an undisputed invoice goes 15 days past written notice. Documented notice on both sides keeps a termination from becoming the expensive kind of dispute.