A mechanical estimator evaluates the total cost of a project in various industries. As a mechanical estimator, your responsibilities include researching the materials, sourcing options, labor, and permit costs for a given project. You also work with contractors, subcontractors, and vendors to get appropriate estimates. Your job is to help those in charge make decisions on projects based on the pricing data you compile. In this career, you may work on anything from mechanical system upgrades to new construction projects. Qualifications for a job as a mechanical estimator include a high school diploma, on-the-job training through a construction company or related industry, and experience with contracting. Some employers may require you to have a post-secondary degree depending on the particular project.