@ Home Prep - a division of Stautzenberger College, offers comprehensive contractors licensing exam preparation and reference materials. In two days or less, a contractor can undergo our state examination review, which includes sample questions and answers along with a detailed outline of what can be expected for the various state licensing exams. We offer Business Law Review, General Contractor, Mechanical Contractor, Electrical Contractor, HVAC, Plumbing Contractor, and Limited License Electrician.