The General Contractor commits himself to the client by a single service contract, to fully execute a construction project whose study has already been completed. It therefore never realizes its own project, which does not prevent him from sometimes assuming the development of detailed implementation plans. It is free to give parts or all of the work to third parties.
The Total Contractor, for its part, not only assumes the execution, but also the study of the project. It is responsible for all stages of a project. It leads this single project or charges a third party to carry the project in its name and on its behalf. This third party does not enter into the contract with the Employer.
The integral contractor is similar to the total contractor in its form but the fundamental difference is that it integrates the expertise of the subcontractors in the study phases. The aim is to improve the implementation and control the costs by using the expertise of companies collaborating in the project in the early stages of study.