DocumentLane Subcontractor onboarding: getting a new sub ready for site
The days between award and mobilization are where missing paperwork gets waved through. A simple onboarding sequence that gets every document in before the first crew arrives.
Where onboarding breaks down
The subcontract is signed, the schedule is tight, and the superintendent needs the crew on Monday. Paperwork that was 'coming' turns into paperwork that never arrives — and a sub ends up on site without a compliant certificate.
A short, repeatable onboarding sequence fixes this by making the documents the gate, not an afterthought.
A simple onboarding sequence
- 1Send one request at award — a single link listing every document you need, instead of a chain of emails.
- 2Collect the insurance first: a certificate naming your company as additional insured for this project, plus the endorsements your contract requires.
- 3Collect the rest: W-9 or tax form, trade license, safety program or site-specific safety plan, and any project-specific forms.
- 4Review against the contract, not memory. Check limits, additional insured wording, waiver of subrogation, and policy dates.
- 5Confirm cleared for site — and tell the superintendent, so mobilization is a decision, not an assumption.
- 6Start tracking expiry dates the moment the documents are accepted.
Make it easy for the sub
- One place to upload, reachable from a phone — many subs send documents from the truck.
- A clear list of what is still missing, so they are not guessing.
- Let their insurance agent upload the certificate directly when that is faster.
- Specific feedback when something is rejected, such as 'additional insured must name the owner', rather than just 'not compliant'.
Frequently asked questions
What documents does a subcontractor need before starting work?
Typically a compliant certificate of insurance with required endorsements, a tax form, applicable trade licenses, and safety documentation. Your subcontract's requirements are the final word.
Should a sub be allowed on site while their COI is pending?
Generally no. Most general contractors treat a current, compliant certificate as a condition of mobilization, because a claim during that window falls back on the GC.
Stop chasing subcontractor COIs.
Send a COI checklist with a secure upload link, review what comes back, and let expiry reminders go out on their own. Registration is invite-only.
Request early accessFree: the two-page subcontractor COI checklist
What to collect before a sub mobilizes, how to read a certificate in sixty seconds, and a short version to send with the contract.
Keep reading
- ComplianceSubcontractor prequalification: what to ask before you awardPrequalification decides which subs are allowed to bid. The questions worth asking, the documents to collect, and how to keep the process from becoming a paperwork wall.
- ComplianceSubcontractor compliance checklistA practical checklist of what general contractors should collect from subcontractors before mobilization — insurance, endorsements, licences, safety records, and contracts — and when to re-check.
- Document collectionHow to Ask Clients to Resubmit Incorrect DocumentsWhen a client sends the wrong file, a vague request to “try again” creates more work for everyone. Use a clear explanation, a precise replacement request, and one upload destination to get usable documents with less back-and-forth.
Questions about your own requirements? Email hello@documentlane.ai.