Because there are so many different tradespeople involved in kitchen and bathroom renovations, these projects are really complex. As opposed to hiring each individual trade, i.e. plumber, electrician, carpenter, people often choose to contract with one general contractor. who can coordinate the entire project. The project’s individual requirements will determine the time involved and the price you will be charged. Moving walls or removing old tile will take more time and labor hours. Keep these things in mind when thinking about your project.