Abstract: An estimating, costing, and installation system for home renovation projects includes estimation modules for a user-specified home renovation project. A simple query system enables the DIYer to estimate a detailed quantity of material required for their home project, to receive a detailed cost report based on local supplier prices, to receive a detailed graphic layout of the material to be used and how it is installed, and to receive a tool requirement list that takes into account tools already possessed by the DIYer. The system provides local contractors and budgeted prices for the project. The system software is stored in a central location secured through firewalls by a hosting service. The databases that contain all the information for the costing of materials, tools, equipment, and budgeting labor are maintained through a local zonal administrator distribution network. Also provided is a tree-based profit distribution system applying the system.