AI Project Closeout

Why it matters in construction

Closeout is where the last 5 to 10 percent of contract value sits, and it is the phase nobody wants to work on. Substantial completion hits, the super and PM move to the next job, and a PE inherits a spreadsheet of 400 required documents pulled from Division 01 and every technical spec section. Retainage does not release until the owner accepts the package, and the owner will not accept the package until the mechanical sub sends the correct warranty letter for the third time.

Closeout can run for months after substantial completion. That leaves retainage on the balance sheet and keeps a PE tied to a job that is no longer billing.

How it works

1. Build the requirements list. A model reads Division 01’s closeout section plus the closeout submittal paragraph in every technical section and produces the list of required documents by trade and sub.
2. Classify incoming documents. As subs send PDFs, the tool tags each one as O&M, warranty, as-built, certification, or lien waiver and matches it to the requirement and sub it satisfies.
3. Verify. Extraction checks the content, not the file name. A warranty letter needs the right project name, a start date at substantial completion rather than install, a duration that matches the spec, and a signature. A lien waiver needs to match the pay app amount.
4. Track and chase. A dashboard shows percent complete by sub. An agent sends each sub a specific list of what is outstanding and what got rejected and why.
5. Assemble. The final package goes together by spec section with an index, ready for the owner and the facilities team.

Every “complete” checkmark should link to the document and the spec paragraph it satisfies.

Example in practice

Consider a commercial GC reaching substantial completion on a $28M office building with 34 subs and $1.6M in retainage outstanding. The spec generates 380 closeout requirements.

Within a week, subs have sent 210 documents, which the system classifies. It rejects 14: six warranties dated from installation rather than substantial completion, five O&M manuals that are product cut sheets rather than manuals, and three unsigned lien waivers. Each sub receives a list explaining the issue. The electrical sub, 40 percent complete on 52 items, receives a weekly reminder and a note to the PM at day 21. In this example, the owner accepts the package at week nine rather than month six, releasing $1.6M in retainage a quarter earlier.