Above all, the contractor will also deliver a finished product that meets the client’s vision and expectations. Clients and contractors have a unique relationship which, when the stars line up, can be mutually beneficial to both for years. Do A Bit of Prep Work Before The Contractor ArrivesContractors typically have a certain degree of prep work built into their estimates. Good contractors are certainly careful, but things can happen. In a kitchen renovation, it’s your contractor’s job to demo and remove the existing cabinets as part of the job work.