Punch list in construction: how it works
A punch list is the list of incomplete or defective work items compiled near substantial completion, which the contractor must finish before final payment and project close-out. It sits at the intersection of quality and money: retainage rides on it.
Where the punch list fits in close-out
- Pre-punch (contractor's own walk). The GC walks the work with subs before inviting the architect. Every item caught here is an item the owner never sees.
- Substantial completion walk. Owner, architect and GC walk the project; the architect compiles the formal punch list. Substantial completion is typically certified with the punch list attached.
- Punch work. Items are assigned to responsible trades with dates. Retainage — commonly 5–10% of contract value — stays held until the list is done.
- Back-punch (verification walk). Completed items are verified, ideally with before/after photos. Items that fail go around again.
- Final completion. Zero open items, final payment released, warranties and O&M documents handed over.
Running punch work fast
- One item, one trade, one date. Items assigned to “subs” collectively belong to nobody.
- Locate items on the plan. A pin on the drawing kills the time trades spend finding the item — often longer than the fix itself.
- Photograph at creation and at completion. The pair is what makes the back-punch a formality instead of a renegotiation.
- Publish the count. Open items by trade, updated daily. Nothing moves a sub like their number on a shared dashboard.
- Punch progressively. Punch each floor or area as it finishes; a 900-item list on one spreadsheet at the end is how close-out eats a quarter.
UK and Irish teams call the same process snagging — our snag list guide covers that workflow.
Doing this in TerenIQ
TerenIQ runs punch lists as live work, not a spreadsheet:
- Create punch items from the phone during the walk — photo, pin on the drawing, trade, due date — in under a minute each.
- Each sub sees their own queue with due dates; the GC sees the burn-down by company on the dashboard.
- Every item keeps its full status history, so the back-punch is reading a record, not holding a hearing.
- The client signs off the completed work in the app, and the whole list exports as a printable report for close-out files.
Frequently asked questions
Who creates the punch list?
Formally, the architect or owner's representative at the substantial completion walk. In practice, good GCs pre-punch with their subs first, so the formal list is short.
What is the difference between substantial completion and final completion?
Substantial completion means the owner can use the space for its intended purpose, with the punch list documenting what remains. Final completion means the punch list is at zero and final payment, including retainage, is due.
How long should punch list completion take?
Contracts commonly allow 30–60 days after substantial completion. Progressive punching and pinned, photographed items are what keep real projects inside that window.