Sub-Contractor Audit Checklist (PDF)

What's in the checklist
- Pre-audit preparation list (documents to review, scope to define, site coordination)
- Structural checks (materials, install sequence, hold-points, sample testing, measurable spec)
- Documentation checks (mill certs, install certs, conformance evidence, prior NCRs, as-builts)
- Workmanship checks (setting out, joints, terminations, interfaces, finishes)
- Trade-specific sections for waterproofing, structural concrete, fire-rated separation, acoustic separation
- Post-audit workflow (report, NCRs, close-out verification, QA file update)
Who the checklist is for
Three audiences typically use it:
- Builder QA leads. A structured framework for running audits on their own trades.
- Independent consultants. A starting point that gets customised per audit.
- Trades themselves. Many sub-contractors use the checklist to self-audit before the head contractor's QA audit lands.
The checklist is the structure; the audit is the work. A real audit goes deeper than the checklist on whatever the audit reveals.
What's not in the checklist
A few deliberate omissions:
- Health and safety hazard assessment. WHS sits in its own framework. The checklist is quality and construction conformance only.
- Statutory inspection sign-offs. Building certifier inspections sit with the appointed certifier; the audit informs but doesn't replace them.
- Commercial matters. Variations, progress claims, and contract administration are separate from quality audit.
Keeping the checklist focused on quality is what makes it useful.
When a checklist isn't enough
For complex projects, contested trades, or high-risk work, a standard audit checklist isn't enough. The audit needs to be conducted by someone with trade-level construction knowledge, forensic discipline, and report-writing capability, at the depth that a check-box approach can't reach.
QBFS conducts sub-contractor audits on residential, multi-residential, and commercial projects across Australia. The audits go deeper than the checklist on whatever the work reveals, with reports written for the audience that needs them, whether that's a head contractor QA file, developer oversight, or insurer review.
Get help with the audit
If the audit needs to be conducted independently or the project's complexity warrants a deeper review, talk to Paul.
Call Paul on 0407 146 737.
