A Subcontractor Wants to Start Before the Agreement Is Signed: Decision Tree

Why this matters

A sub who is eager to start before the paperwork is done is common, and sometimes the schedule really is tight. But work that starts with no signed agreement and no proof of insurance is work with no scope, no price protection, and no coverage if someone gets hurt or something gets wrecked. If an uninsured sub injures a person or damages the property on day one, the claim can flow straight to your policy or your pocket. This tree is how you handle the pressure to start early without giving away your protection.

Start here: the two things that are never optional

Before any sub touches the work, two items must exist, even when everything else waits:

1. A signed scope and price, even a short one, covering what they are doing and what you are paying.
2. A current certificate of insurance, the sub's proof they carry their own coverage (see the related certificate article).

These two are your floor. Everything else in a full agreement can be negotiated in parallel, but starting without these is starting naked. If you can get only these today, get these today.

If the schedule genuinely cannot wait

You have options short of the full contract.

• Use a short-form agreement or a letter of intent that locks scope, price, insurance, and indemnity in a page, with the full agreement to follow. A tight one-pager beats a handshake by a mile.
• Get the certificate of insurance first, verified, even if the contract lags. Coverage is the item you cannot recover after the fact: if it was not in place when the loss happened, no later signature fixes it.
• Put the interim terms in writing, even an email both sides confirm. A written record of what you agreed is worth far more than memory when a dispute starts.

If they push back on signing

Watch how the sub reacts to a reasonable request to sign and show insurance.

• A professional sub has a certificate ready and signs a fair scope without drama. This is routine to them.
• A sub who wants to start but refuses to sign, or "will get you the insurance later," is telling you something. Either they are disorganized or they are not actually covered, and both are reasons to slow down, not speed up.

The eagerness to start before paperwork is sometimes hunger, and sometimes it is a sub who knows the paperwork would expose a problem. Do not assume which.

The narrow case where a limited start is defensible

Sometimes a small, low-risk prep task (a site walk, measurements, staging materials) can begin while the full agreement is finalized. If you allow it, keep it bounded:

• Confirm insurance is actually in force first, certificate in hand.
• Limit it in writing to the specific low-risk task, not the full job.
• Do not let high-risk work, meaning anything that can injure someone or damage the structure, start until scope and coverage are locked.

The test is simple: if this task went wrong today, could the loss exceed what I can absorb? If yes, it waits for signatures and insurance.

Recap

1. No signed scope and no verified insurance means no start. That is the floor.
2. If time is tight, use a short-form or letter of intent plus a verified certificate.
3. Get coverage confirmed first; it is the one thing you cannot fix after a loss.
4. Treat refusal to sign or show insurance as a warning, not a scheduling detail.
5. Allow only bounded, low-risk prep to begin early, and only with coverage confirmed.

References

• U.S. Small Business Administration (SBA), contract basics for small business
• Trade-standard practice for subcontractor onboarding and insurance verification
• Consult a licensed attorney for your short-form agreement and letter-of-intent templates
• See related: What a Subcontractor Agreement Must Spell Out; Why You Need a Certificate of Insurance From Every Sub