⚒ Skilled Trades
Skilled Trades exam prep
Code books, load calcs, and licensing exams — prep built for electricians, HVAC techs, plumbers, and contractors.
Journeyman Electrician
Electrical licensure. The licensing exam built on the National Electrical Code — load calculations, conductor sizing, conduit fill, motors, and theory. Administered per state, tested from the same code book.
See the full program →Master Electrician
Electrical licensure. The next rung — deeper code, service and feeder calculations, and design-level questions on top of everything the journeyman exam tests.
See the full program →EPA 608
HVAC refrigerant. The federal certification every technician who handles refrigerants must hold — Core plus Type I, II, and III for different appliance classes. National, uniform, and required.
See the full program →NATE
HVAC excellence. North American Technician Excellence — the HVAC industry's respected certification. Core fundamentals plus specialty exams, with real math: superheat, subcooling, airflow.
See the full program →Journeyman Plumber
Plumbing licensure. Code-based licensing built on the plumbing codes — pipe sizing, fixture units, venting, water supply, and drainage. State-administered, code-book tested.
See the full program →Master Plumber
Plumbing licensure. The master-level exam — advanced system design, medical gas, backflow, and business/law content layered on the journeyman scope.
See the full program →NASCLA Contractor
General contractor. The one contractor exam accepted across many states — construction management, estimating math, safety, and business organization. Pass once, carry it with you.
See the full program →NHIE
Home inspection. The national exam for home inspectors — systems and components, analysis and reporting, and professional practice.
See the full program →CDL General Knowledge
Commercial driving. The written knowledge test that starts every commercial driving career — vehicle inspection, basic control, safe operation, and the rules of the road for big rigs. (We prep the written test; behind-the-wheel training is separate.)
See the full program →AWS CWI
Welding inspection. The welding industry's premier inspection credential — welding fundamentals, practical inspection, and code application across three exam parts.
See the full program →Every program: $39/month, pass or your money back
Complete the program and pass — or get a full refund. Start with the free diagnostic to see where you stand.