A general contractor or a main contractor of the project has the key responsibility to complete a project effectively within the time period. The company is responsible for the day to day oversight of an ongoing project to track the work performed. It needs to effectively manage the vendors as well as the traders who are related to the project. General contractors provide a wide range of services to the clients for a tendered fee and a possible duration of completion of the project under an authorized contract for proposed services. A contractor can charge the fees for its services by an hour of work basis, by day or lump sum basis. They generally ask for payment from the clients after completion of each part of the whole project or they can charge in pre-mentioned work duration. General contractors take contracts of the new project as well as the renovation of an old or damaged project. For this type of services, they do an effective site visit fpo0r proper understandings of the current situation of the project which is essential for the projection of required work on that project as well as to estimate the overall cost for the renovation. In the process of estimating the total cost of a project, they consider the cost of required raw materials as well as the labor and other possible costs. All these are mentioned in detail in the budget. General contractors who work for government agencies are referred to as a prime contractor. For a business owner perspective, they hired a contractor than a group of permanent employees to get the cost advantage. Contractors provide services at a competitive rate as there is also huge competition in the contracting market. Apart from this, the client can release the contractor after one project and they do not need to provide training.