The pre-mobilization checklist
Before any sub touches your job, pin these:
- Signed subcontract (your standard form, not theirs)
- Current COI naming you as additionally insured
- W-9 on file
- OSHA 10/30 or your prequal record
- Schedule of values pre-priced (so partial pay apps don't blow up later)
- Lien waiver template the sub will sign each pay period
Missing any of these on day one creates 10× the friction later. The two-hour sit-down before mob is the cheapest insurance you ever buy.
COI tracking is a 90% solved problem
COIs lapse on a calendar that no one watches. Build a spreadsheet (or use software) that tracks expiry per sub, sends an automated email at 30 days out asking for the renewal, and locks payment on a sub if their COI lapses.
On a typical general contractor roster of 30–40 subs, three COIs lapse silently every quarter. Each lapse is real legal exposure if anything happens on site during the gap. Set calendar reminders or use a system that does it for you.
Lien waivers — partial vs final, conditional vs unconditional
Conditional partial — the sub waives lien rights for the work paid in this period, conditional on the payment actually clearing. Use this on every monthly pay app.
Unconditional partial — same waiver, no conditions. Sub is releasing rights even if your check bounces. Subs hate signing this; you should never demand it.
Conditional final — at job close, sub releases all remaining lien rights conditional on final payment clearing.
Unconditional final — total release. Only after payment has actually cleared. Your owner will demand this from every sub before releasing your retention.
The daily huddle that actually saves time
10 minutes, 7am, on site:
- What did you finish yesterday?
- What are you doing today?
- What are you blocked on?
That's it. The blockers are the gold — if a sub flags “I'm waiting on the architect's answer to RFI #042,” you write the chase email at 7:15. If three subs are waiting on the same answer, you escalate at 7:30.
The sub portal pattern
Modern construction software (including neuroBLDR) ships a magic-link sub portal. Subs don't need a login — they click a link in an email and see only their work on this project. Three things they should be able to do:
- Submit weekly hours (you review and approve)
- Sign the lien waiver tied to the latest pay app
- Acknowledge approved change orders that affect their scope
Everything else (drawings, RFIs, photos, etc.) the sub gets via email, where they already live. Don't make the sub log into a portal to do their daily work; they won't.
The four sub patterns to watch for
1. The over-promiser. Says yes to every schedule, hits 60% of them. Confront early, dock pay if necessary, swap them out before the second miss.
2. The double-booker.On three jobs at once, allocates labor to whoever pays first. Make sure you're paying on time, then ask them weekly which job they're prioritizing.
3. The COI lapser.Always renews after a gap. Lock payments until current; one bad faith renewal and they're off your roster.
4. The lien-waiver dodger.Wants to be paid but doesn't want to sign. Don't cut the check. Period.
How neuroBLDR handles sub coordination
Each sub on a project gets a magic-link portal. They submit weekly hours, sign waivers (conditional partial auto-generates when a pay app gets paid), and acknowledge approved COs from their phone. The Schedule Watch agent flags double-booking risk by checking sub assignments across all your projects. COI tracking is automated — auto-email at 30 days, lock payment at expiry.