Subcontractor Agreements: What Every Trade Business Should Lock In

A subcontractor agreement is the written record of what two trade businesses agreed to: the scope, the pay, the schedule, the insurance, and who eats the cost when something changes. For trade-to-trade work, the agreement that matters is the one both sides can point to later without arguing. Get those terms in writing before the first crew shows up.

Most disputes between contractors don't start as disputes. They start as two reasonable people remembering a handshake differently. The fix isn't a 40-page legal document — it's a short, clear record that nails down the parts that actually cause fights. Here's what every trade business should lock in before work begins.

Scope: define the work, then define what isn't the work

Vague scope is the number-one cause of trade-to-trade friction. "Help us finish the rough-in" means one thing to you and another thing to the crew you brought in. Write the scope so a third party could read it and know exactly where the job starts and stops.

A usable scope answers:

What work is included — specific tasks, areas, or phases (e.g., "rough-in for floors 2-3, panel to fixtures").
What's explicitly excluded — trim-out, cleanup, material handling, punch list, callbacks.
Whose materials — who supplies, who stages, who's liable for shortages or damage.
Acceptance criteria — what "done" looks like, and who signs off.

The exclusions matter as much as the inclusions. If hauling debris or final cleanup isn't somebody's named responsibility, it becomes an argument at the worst possible moment.

Rate and pay model: be specific about how money moves

"We'll take care of you" is not a pay term. Spell out the compensation model and the mechanics around it so nobody's guessing on payday.

Pay model — hourly, flat rate, or a fixed bid. Each behaves differently when the job runs long or short.
The number — the rate or total, in writing, with overtime and call-out rules if hourly.
What's billable — travel, mobilization, standby time, equipment, consumables.
Payment timing — net terms, deposit or mobilization payment, retainage if any.
Conditions on payment — is it tied to your own payment from the GC? Say so up front. "Pay-when-paid" is a legitimate term, but only if both sides agreed to it before the work.

Anti-lowball matters here too. A rate that undercuts the trade hurts the person you're hiring and the market you both depend on. Structured pay terms — with offer floors and rate caps — keep a fair number from drifting into a bad one mid-negotiation.

Schedule: dates, durations, and what counts as a delay

Time is where trade businesses live and die. Put the schedule expectations in writing: start date or ASAP, expected duration, working hours, and access constraints — the site can't be touched before the inspector signs off, or after 4 p.m., or on weekends.

Then handle the realistic part: delays. Who absorbs the cost if the site isn't ready? What happens if weather kills two days? If the crew you brought in gets stuck waiting on access, are they paid for standby? You don't need to predict every scenario, but you do need a rule for who carries the risk when the calendar slips.

Insurance and licensing: verify before, not after

A certificate of insurance you've never seen is worthless the day someone gets hurt. Before any crew touches the site, confirm the other business carries current general liability and workers' comp, and that any required licenses are real and unexpired.

Keep these documents somewhere you can produce them on demand. A Compliance Vault that stores COIs, licenses, and certifications saves the scramble. Verification tiers — Basic, Trusted, Verified Pro — give you a fast read on who you're actually dealing with before you commit a crew to their job site. "Trusted" or "Verified Pro" is a signal you can act on; an unverified handshake is a risk you're choosing to take.

Change handling: the term nobody writes until it's too late

Scope changes. The question is whether your agreement anticipated it. Write a simple change rule: any work outside the defined scope requires written sign-off on the added cost and time before it's performed. No verbal "just take care of it and we'll square up later."

This one clause prevents most of the ugliest trade-to-trade disputes. It protects the crew doing extra work from eating it, and it protects the hiring business from surprise invoices. Both sides win when changes are documented in the moment instead of reconstructed from memory.

Why an immutable record beats a signed PDF

A signed contract is good. A record neither side can quietly edit is better. The problem with documents that live in email threads and text messages is that "the agreement" becomes whatever someone screenshots — and screenshots can be cropped.

This is where structured digital agreements earn their keep. On SKILLS, accepting a structured Coverage Offer creates a Work Agreement — an immutable, server-authoritative, audit-logged snapshot of exactly what both organizations agreed to: trades, crew size, rate, pay model, schedule, and location. It moves through clear states — Locked In, Crews on Site, Work Finished — so status isn't a matter of opinion. Nobody can rewrite the terms after the fact, and every critical action is timestamped and traceable if a dispute ever comes up. That's the difference between he said / she said and here's the record. See how Work Agreements work.

It's worth being clear about what this is and isn't. This is execution-phase coordination — staffing and finishing work you've already won — not a bidding platform, not a gig app, and not a staffing agency. The agreement exists to make a real arrangement between two real businesses accountable.

Quick answers

Do I need a lawyer for a trade-to-trade agreement? Not for most jobs. You need scope, pay, schedule, insurance, and a change rule in writing — and a record neither side can quietly alter. A lawyer is worth it for large or unusual contracts, but the everyday arrangement just needs clear, agreed terms.

What's the single most-skipped term? Change handling. Almost everyone writes the scope and the rate, then settles extras with a handshake mid-job. Putting the change rule in writing up front prevents most disputes.

Is structured digital coordination expensive? You can browse and post with limits for free. Pro is free for the first three months, then $99/year — see pricing. New terms like Coverage Offer and Work Agreement are defined in the glossary.

The bottom line

You don't need a lawyer to draft every trade-to-trade arrangement, but you do need the scope, pay, schedule, insurance, and change rules in writing — and a record neither side can quietly alter. Lock those terms in before the crew arrives and most disputes never happen. Join the waitlist to put your next trade-to-trade job on the record.