During the planning of the repair, two detailed planes should be drawn up, one plan that should contain information about what should be obtained as a result of repairs and the other, which is also called estimates, should describe in detail all the upcoming expenses. It should be concluded from this that planning includes an analysis of the alteration and the result of this alteration, as well as the definition with materials that will be used in the process of work. The availability of detailed plans greatly simplifies work and, moreover, simplifies the purchase of materials, because in this case, options for buying excess material are excluded or even worse than buying the wrong material. Planning greatly helps in the leadership hired builders.