Free-to-start, navigation-first exam prep built by people who sit the real tests — practice questions tied to the exact code, study plans, and calculators. Starting in North Carolina, expanding across trades and states.
Start with NC SP-PH →The North Carolina Special Restricted Plumbing & Heating electrical license. 250 practice questions, calculators, flashcards, a full study plan, and timed exams.
Open course →North Carolina heating contractor prep — the largest NC trades audience.
The restricted fire-alarm & low-voltage electrical classification.
The federal EPA Section 608 refrigerant-handling exam (Type I/II/III/Universal) — required for every HVAC tech, nationwide.
Plumbing, electrical classifications, and neighboring-state versions on the roadmap.
No signup to practice. Try real questions and the full study plan before you ever pay.
Most of these exams are open book. We train the skill that actually passes them: finding answers fast in the code.
A fraction of the price of the big prep schools — with the depth you need to pass.