Preparing for an HVAC, mechanical, air conditioning, or refrigeration contractor license exam? Contractor Pathway builds an original, exam-focused study guide plus four full-length practice exams for HVAC-related classifications across the country — from state-issued HVAC/HVACR and Mechanical Contractor licenses to California’s C-20 (HVAC) and C-38 (Refrigeration) classifications. Every course is matched to the license your state actually tests, with 30-, 60-, and 90-day access at $99, $129, and $169.
HVAC/mechanical licensing varies a lot by state
There is no single “HVAC exam” — states use different names for essentially the same trade (HVAC, HVACR, Mechanical, Air Conditioning & Refrigeration), different license tiers (Journeyman, Master, Contractor), and different code bases (mechanical and fuel-gas codes, refrigerant/EPA 608 rules where applicable). Some states, like California, split the work into two separate classifications — C-20 for HVAC and C-38 for refrigeration — while most states license it as one combined trade. Always confirm the current code edition, exam vendor, question count, and passing score with your own state board or testing vendor before you schedule — Contractor Pathway is an independent exam-prep provider and is not affiliated with any state board or testing vendor.
What every HVAC course includes
Each course below includes a comprehensive study guide (code-section breakdowns, worked calculations, common exam traps, a glossary, and a 30/60/90-day study plan) plus four full-length practice exams matched to the topic weighting of that state’s actual test, with a detailed answer explanation for every question.
Choose your state and license level
Courses are grouped below by state. If your state licenses more than one HVAC-related tier (for example, Journeyman and Master, or HVAC and Refrigeration separately), choose the exam you’re actually sitting for.
Alabama
Alabama HVAC Contractor Exam Prep
Study guide + 4 full-length practice exams with a detailed answer explanation for every question.
Is “HVAC,” “HVACR,” and “Mechanical Contractor” the same license?
They generally cover the same core trade (heating, ventilation, and air conditioning), but the exact scope differs by state — some titles explicitly add refrigeration (the “R” in HVACR) or bundle broader mechanical work (boilers, process piping) under “Mechanical Contractor.” Check your specific state’s license description for the exact scope tested.
Do I need an EPA 608 certification too?
In most states, yes — handling refrigerants requires separate federal EPA Section 608 certification in addition to your state trade license. This is a separate credential from your state HVAC exam; confirm with your state board whether it’s a prerequisite or can be completed in parallel.
Are HVAC exams open book?
In most states, yes — you’re typically allowed a clean, tabbed copy of the adopted mechanical/fuel-gas code during the exam. That’s why our guides teach you exactly what to tab and how to find a section quickly.
How long should I study?
Most candidates do well on a 30-, 60-, or 90-day plan depending on their experience — which is why we offer access at all three terms ($99 / $129 / $169). Each guide includes a day-by-day study plan for whichever term you choose.
I don’t see my state listed — what should I do?
We’re continuing to build out HVAC coverage nationwide. If your state isn’t listed above, check our full state directory or Business & Law exam prep, which is half off with any trade-classification purchase.
