Contracts & Scope

Substantial completion and the punch list

By DoneQuote Editorial · August 24, 2026 · 6 min read

Substantial completion generally means the work can be used for its intended purpose while minor items remain. A punch list records those unfinished or defective items. Define the milestone, the remaining work and the payment conditions in the contract; customer use alone does not settle them.

Substantial completion and final completion

Substantial completion is the point where the work can be used for the purpose it was built for, even though minor items remain. For a kitchen, that may mean it can be safely used while minor finish corrections remain. Its consequences depend on the contract and applicable law.

Final completion is later: the punch list is closed and nothing is outstanding.

Define substantial completion and who confirms it in your own contract. For comparison, GSA’s construction clause requires usable work and a contracting officer’s written determination. That federal clause is an example of a defined process, not a rule for residential jobs.

Check which deadlines use the completion date

Check the contract and law separately for payment, warranty, retainage and lien deadlines. They may use different completion events. For example, California §8180 defines completion for its lien chapter; do not assume a punch-list signature starts every deadline.

A written date and a dated list explain what remains and when you plan to finish it.

Punch list or change order: the line is the original scope

A punch-list item is work you already sold and have not yet delivered correctly. A change order records an agreed change to the scope, price or schedule. Classify each request against the approved scope and applicable quality requirements. A fictional bathroom example follows; the prices illustrate the distinction, not typical rates:

Item the customer named at the walkthroughPunch or changeCost to them
Grout haze on the shower floorPunchIncluded
Outlet cover plate missing behind the doorPunchIncluded
Tub-to-tile joint not caulkedPunchIncluded
Door rubs the new tile at the thresholdPunchIncluded
Second towel bar on the far wallChange order$85
Swap chrome shower trim for matte blackChange order$240 + trip
"While you're here, re-hang the hallway door"Change order$120
Tile layout starts with a cut piece at the doorwayDepends on the estimate—

For the tile-layout row, compare the written layout, approved drawings and required workmanship standards. An omitted layout detail does not by itself make a defective installation paid extra work. The scope of work helps identify the promise; quality obligations may also come from law.

Keep unfinished work and later warranty claims identifiable in your records. Their legal coverage can overlap. For example, Minnesota’s statutory warranties cover specified new-home and home-improvement defects and define their own warranty dates; a contract cannot freely replace those rules.

Record the punch list at the walkthrough

Use one shared list to record identified items, responsibility, target dates and completion.

  1. Walk it yourself first, with a light. Inspect before the customer walkthrough and correct small items where possible.
  2. Walk it with them once, room by room, writing as you go. Photograph anything ambiguous; a dated photo of grout haze helps document its condition.
  3. Separate new requests from defects. Record the known remaining items. Later requests outside the agreed scope need a written price and schedule impact, approved before work starts. A defect discovered later may still be your responsibility.
  4. Date each item and the list as a whole. Give each item an agreed target date and mark it complete after it is checked.

If they name something you disagree with, write it down anyway with your position beside it: "Cabinet door alignment — within manufacturer tolerance, will adjust as a courtesy." Keep the customer’s concern and your response visible in the shared record.

What the owner can still hold back

Review the contract’s payment milestones and applicable withholding rules before demanding the balance. List each incomplete item and its estimated completion cost so both sides can discuss a specific amount.

Do not assume a retainage percentage from commercial work applies to a homeowner. For example, Massachusetts’ home-improvement rules prohibit demanding final payment until completion to both parties’ satisfaction. Have the contract explain the payment mechanism within the rules that cover the job.

Putting the date and the list in writing

Check the contract and local requirements for a completion certificate, inspections and sign-off. If a simple notice is appropriate, adapt this fictional example and attach the actual itemized list:

The work at 412 Rosewood Lane under the estimate dated May 4 reached substantial completion on August 18: the kitchen is usable for its intended purpose. The attached list dated August 18 records three remaining items: install the missing cabinet toe-kick, replace the switch plate with the specified finish, and remove backsplash grout haze. We will complete them by September 2. Signing acknowledges the stated date and the listed items currently identified. New scope requires a written change order with price and schedule impact, approved before that work starts. This acknowledgment does not waive rights concerning defects discovered later.

Signature, date, both parties, one copy each. On larger or commercial work your contract may require a formal certificate instead, sometimes signed by an architect — read what it demands before inventing your own version.

A signed punch list should record the items identified, not claim to eliminate every later defect or warranty obligation. For new scope, obtain a written description, price, schedule impact and approval before starting. California §7159, for example, requires covered home-improvement changes to be written and signed before the work begins.

Compare closeout requests with the approved quote

Use the approved quote in DoneQuote, any separate quotes for extra work and their attached photos as supporting records at closeout. Compare them with your punch list and actual work records; quote approval records agreement, not job completion.

Say the date and remaining items out loud at the walkthrough.

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