Contractor: who builds
The contractor is the company responsible for carrying out the work in accordance with the contracted design, scope and schedule. It mobilises the team, materials and equipment, and is accountable for the quality of what it delivers.
Manager: who coordinates
Construction management oversees the project as a whole: planning, schedule, budget, coordination between disciplines and communication between the parties. The aim is to keep time, cost and scope under control.
- Planning and schedule tracking
- Cost control and progress measurements
- Coordination between designs and suppliers
- Progress reports for the client
Inspector: who verifies
Inspection checks that the work is being carried out in line with the design, the specifications and the applicable standards. The inspector acts on behalf of the client, recording non-conformities and validating progress measurements.
Why separate (or combine) the roles
When the same party executes and inspects its own work, the verification loses its independence. On the other hand, appointing a single party to coordinate the contractor and suppliers can simplify management. What matters is setting out in the contract who does what, with which deliverables and acceptance criteria.
This content is for information only and does not replace the design, technical assessment or advice of a qualified professional. Standards may be updated; always check the version in force.
Frequently asked questions
Can the same company take on more than one role?
Yes, provided the contract clearly defines the scope of each role. On projects that require independent verification, consider separating inspection from execution.