Inspection
Quality Control (QC)
The operational techniques and activities used to verify that construction work meets specified quality requirements.
What is Quality Control (QC)?
Quality control (QC) is the systematic process of verifying that construction work, materials, and deliverables meet the project's specified quality standards. QC is performed by the contractor's own team to ensure workmanship and compliance before external inspections.
QC vs QA
- **QC** is reactive — it checks the output
- **QA** is proactive — it ensures the process prevents defects
Common QC Activities
- Material testing and verification
- Workmanship inspections
- Dimensional checks
- Weld inspections
- Concrete slump and cylinder tests
- MEP rough-in verification
Why QC Matters
Effective QC reduces rework, prevents costly delays, and minimizes the risk of defects reaching the punch list phase.
Related Terms
- Quality Assurance (QA)
A systematic process of ensuring that construction activities and deliverables meet quality standards through planned and systematic activities.
- Non-Conformance Report (NCR)
A formal document issued when work, materials, or processes fail to meet specified requirements, triggering a corrective action process.
- Construction Defect
A deficiency in the design, materials, or workmanship of a building that affects its performance, safety, or appearance.
Looking for software that helps your team capture these inspections in the field? See our field inspection software or construction inspection software.