Who is responsible for inspecting previously completed work before starting an installation?

The responsibility for inspecting previously completed work before starting an installation primarily lies with the contractors. Contractors oversee the entire project and ensure that all aspects of the work meet the required standards and specifications. This includes evaluating the condition of the site and any completed work to confirm that it is ready for the next phase of installation.

By inspecting the previous work, the contractor can identify any issues or deficiencies that need to be addressed, ensuring a smooth and successful installation process. It's essential for contractors to have a thorough understanding of the project and to ensure that the work adheres to local building codes and regulations.

Other parties, such as the owner, subcontractor, and supplier, may play roles in the project but do not typically take on the explicit responsibility for inspecting the previously completed work. The owner may be involved in inspections from a quality assurance perspective, while subcontractors and suppliers are generally focused on their specific areas of work or providing materials. In this context, the contractor's comprehensive oversight makes them the key individual responsible for this crucial inspection task.