---
title: "Substantial completion | Drywall Glossary"
url: https://tapeandfloat.com/glossary/substantial-completion.html
language: en
author: James Grokman, CEO, TapeAndFloat
updated: 2026-10-28
---

# Substantial completion

**Substantial completion is the point where work is complete enough for the owner to use the space for its purpose, with only minor punch-list items left. The contract usually defines it, and it is often tied to retainage release and other milestones.**

> **Not legal advice.** This is a general explanation for contractors across the U.S. Lien and payment rules differ by state and by contract, and they change. Before you act on a lien, waiver or payment clause, talk to a construction attorney in your state.

## Why it matters on a drywall job

- For a drywall sub, your work may be substantially complete well before the project is.
- Knowing how your contract defines it helps you know when to bill retainage.

For one state's rules, see the [Texas lien guide for subcontractors](https://tapeandfloat.com/guides/texas-lien-deadlines.html). It covers Texas only.

## Related guides and tools

- [Drywall retainage (blog)](https://tapeandfloat.com/blog/drywall-retainage-texas.html)
- [Texas lien guide for subcontractors](https://tapeandfloat.com/guides/texas-lien-deadlines.html)
- [All glossary terms](https://tapeandfloat.com/glossary/)

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