The contractor's responsibility is to verify the vendors and ensure the quality of the material coming to the construction sites. The responsibility also includes that all the materials should reach the site on time and are of desired quality while keeping in mind the client's expectations and the project budget.

In the construction industry, a general contractor is the person or company responsible for overseeing a construction project. Property owners will typically hire general contractors to ensure a construction job is completed safely, on time, and according to specifications.

A civil contractor is a professional who provides construction services for both public and private sector clients. Civil contractors typically work on infrastructure projects such as roads, bridges, dams, and canals.